JP6121208B2 - Combustion device - Google Patents

Description

  The present invention relates to a heat exchanger for partitioning between a first heat exchanger and a second heat exchanger, and a burner partition member for partitioning between the first burner and the second burner in a single can. And a chamber partition member.

  For example, in Patent Document 1, a burner can body, a heat exchanger can body, and an exhaust can body are sequentially fixed and stacked from the bottom to the top in the vertical direction of the combustion apparatus. A first burner and a second burner are installed side by side in the burner can body, and the first heat exchanger is positioned above the first burner in the heat exchanger can body. A combustion apparatus is disclosed in which a second heat exchanger is provided at a position above the second burner. In this combustion apparatus, a burner partition member for partitioning between the first burner and the second burner is fixed in the can for burner, and the first heat exchanger and the above in the can for heat exchanger A heat exchanger partition member for partitioning the second heat exchanger is provided. This heat exchanger partition member is inserted between the first heat exchanger and the second heat exchanger, abuts against the upper end portion of the burner partition member with an elastically deformable dimension absorber interposed therebetween, and exhausts The exhaust can body partition member fixed in the can body presses the upper end portion of the heat exchanger partition member, so that the burner partition member and the heat exchanger partition member are integrated through the dimension absorber. Things have been done. In this case, for example, even if the position of the burner partition member may vary due to variations in the manufacturing dimensions of the burner cans and the like, the above-described dimension absorber is elastically deformed, so that the burner partition member and the heat As a result of being in close contact with both of the exchanger partition members, it is possible to seal between the burner partition member and the heat exchanger partition member.

JP 2011-27352 A

  As described above, in the combustion apparatus disclosed in Patent Document 1, the exhaust can body is fastened to the heat exchanger can body with a screw, and the exhaust can body partitioning member becomes a heat exchanger partition by the tightening force of the screw. The member was pressed against the dimension absorber so that the dimension absorber was in close contact with both the burner partition member and the heat exchanger partition member. For this reason, if the position from the position where the exhaust can body is tightened to the heat exchanger can body with the screw to the dimension absorber is separated, the heat exchanger partition member can be sufficiently attached to the dimension absorber with only the screw tightening force. It is possible that it cannot be pressed against. In such a case, the dimension absorber cannot be brought into close contact with the burner partition member and the heat exchanger partition member, and there is a concern that the sealing performance between the burner partition member and the heat exchanger partition member is inferior. The

  This invention is proposed in view of such a situation, and it aims at providing the combustion apparatus which improved the sealing performance between a burner partition member and a heat exchanger partition member.

In order to achieve the above object, according to the first aspect of the present invention, a first burner and a second burner are juxtaposed in the lower part of the apparatus main body, and the first heat exchange is performed in the apparatus main body. The heat exchanger is disposed above the first burner and the second heat exchanger is disposed above the second burner in the main body of the apparatus, and the first heat exchanger is heated by the combustion heat of the first burner. The second heat exchanger is heated by the combustion heat of the second burner, and a burner partition member for partitioning between the first burner and the second burner, and the first heat exchanger, A heat exchanger partition member for partitioning between the second heat exchanger and the heat exchanger partition member such that the pair of side plates facing each other have an opening on the burner partition member side. formed in bifurcated consecutively inverse U-shape, the seal portion the entire length of the longitudinal direction of the side plates on the inner surface of one of the side plates And the pair of side plates are brought into pressure contact with the first heat exchanger and the second heat exchanger and accommodated between the first heat exchanger and the second heat exchanger. The partition member is inserted between the pair of side plates from the opening, and has a first pressing portion that contacts the seal member over the entire length and is pressed from the seal member in the opposing direction of the pair of side plates. Is.
According to a second aspect of the present invention, in the configuration of the first aspect, the burner partitioning member is connected to the first pressing portion and contacts the entire length of the inner surface of the other side plate in the length direction. It has the 2nd receiving part pressed from.
According to a third aspect of the present invention, in the configuration of the second aspect, the first pressing portion is configured such that an end portion of the burner partition member on the heat exchanger partition member side protrudes toward one side plate in the facing direction. The tip in the protruding direction is bent so that it can contact the seal member over the entire length in the length direction of one side plate, and the second pressing portion is continuous with the first pressing portion and the other in the opposite direction. The side plate is bent so as to protrude toward the side plate, and the tip in the protruding direction can be brought into contact with the entire length of the other side plate.
According to a fourth aspect of the present invention, in the configuration of the third aspect, among the first heat exchanger and the second heat exchanger, the first side plate is in contact with the outer periphery of one heat exchanger, A plurality of fins are protruded at a predetermined interval in the length direction of one side plate corresponding to a direction orthogonal to the accommodation direction of the pair of side plates between the one heat exchanger and the second heat exchanger. When the side plate is accommodated between the first heat exchanger and the second heat exchanger, one side plate is pressed from a plurality of fins in the opposing direction.
According to a fifth aspect of the present invention, in the configuration of the fourth aspect, a predetermined interval is provided in the length direction of the other side plate, which is in a direction perpendicular to the housing direction, on the outer periphery of the other heat exchanger to which the other side plate is pressed. When the plurality of fins are protruded and the pair of side plates are accommodated between the first heat exchanger and the second heat exchanger, the other side plate is opposed to the other heat exchanger. It is characterized by being pressed from a plurality of fins.
According to a sixth aspect of the present invention, in the configuration of any of the second to fifth aspects, the heat exchanger partition member is formed so that the pair of side plates can be elastically deformed in the contact / separation direction. The receiving portion and the second pressing portion are configured to be elastically deformable.

According to the first aspect of the present invention, the first pressing portion of the burner partition member extends in the opposite direction of the pair of side plates over the entire length of one side plate constituting the heat exchanger partition member. By being pressed from the seal member, the seal member can be pressed against the first pressing portion over the entire length. Therefore, since it can suppress that a clearance gap arises between the 1st receiving part of a burner partition member, and the sealing member of a heat exchanger partition member, the sealing performance between a burner partition member and a heat exchanger partition member Can be improved.
According to invention of Claim 2, the 2nd receiving part of a burner partition member is pressed from this other side plate over the full length of the inner surface of the other side plate which comprises a heat exchanger partition member. By doing so, the other side plate can be brought into pressure contact with the second pressing portion over the entire length. Therefore, it can suppress that a clearance gap produces also between the 2nd pressing part of a burner partition member, and the other side plate of a heat exchanger partition member.
According to invention of Claim 3, a pair of side plate is press-contacted to a 1st heat exchanger and a 2nd heat exchanger, and between a 1st heat exchanger and a 2nd heat exchanger. When the housing is housed in, the distal end in the projecting direction of the second pressing portion is pressed from the other side plate, and the distal end in the projecting direction of the first pressing portion continuous with the second pressing portion is connected to the seal member. Can be pressed against. Therefore, since the front-end | tip direction of a 1st pressing part and the sealing member can be closely_contact | adhered, it becomes possible to improve the sealing performance between a 1st pressing part and a sealing member more.
According to the fourth aspect of the present invention, the first pressing portion in which the one side plate is uniformly positioned on the other side plate side in the length direction of the one side plate by the plurality of fins in the one heat exchanger. It can be pressed toward. As a result, the sealing member attached to one side plate is pressed uniformly against the first pressing portion in the length direction of the one side plate, and the sealing performance between the first pressing portion and the sealing member Can be further improved. In addition, when one side plate is pressed from a plurality of fins in one heat exchanger in the facing direction of the pair of side plates, it is possible to suppress the generation of a gap between the one side plate and each fin. Thereby, one heat exchanger can receive combustion heat stably from the lower part in the apparatus main body, and can improve the thermal efficiency of this one heat exchanger.
According to the fifth aspect of the present invention, the second side plate is positioned on the side plate side of the other side plate uniformly in the length direction of the other side plate by the plurality of fins in the other heat exchanger. It can be pressed toward the part. As a result, the other side plate can be uniformly pressed against the second pressing portion in the length direction of the other side plate, and the occurrence of a gap between the second pressing portion and the other side plate can be further suppressed. . In addition, when the other side plate is pressed from the plurality of fins in the other heat exchanger in the facing direction of the pair of side plates, it is possible to suppress the occurrence of a gap between the other side plate and each fin. Thereby, the other heat exchanger can receive combustion heat stably from the lower part in the apparatus main body, and can improve the thermal efficiency of the other heat exchanger.
According to invention of Claim 6, in the state which accommodated a pair of side plate between the 1st heat exchanger and the 2nd heat exchanger, with the elastic return force of each side plate or each press part, In addition, the seal member of the one side plate and the first pressing portion can be easily brought into close contact with each other, and the other side plate and the second pressing portion can be easily brought into close contact with each other.

It is principal part sectional drawing of the combustion apparatus of embodiment of this invention. It is an enlarged view of the A section in FIG.

  An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 shows an internal structure of a main part of a single can multi-channel combustion apparatus 1 according to an embodiment of the present invention. In this combustion apparatus 1, the burner can body 3, the heat exchanger can body 4, and the exhaust can body 5 are arranged from the lower stage to the upper stage of the combustion apparatus 1 in the vertical direction (vertical direction in FIG. 1). The can body 2 is formed by sequentially fixing and stacking. In the present embodiment, the lower side of FIG. 1 is the lower side of the can body 2, and the upper side of FIG. The can body 2 is an example of the apparatus main body of the present invention.

  The burner can body 3 has a first burner group 7, a second burner group 8, and a burner partition member 9 disposed therein. As shown in FIG. 1, a first burner group 7 and a second burner group 8 each configured by arranging a plurality of burners in the left-right direction (left-right direction in FIG. 1) of the combustion device 1 are disposed inside the burner can 3. However, they are arranged in parallel in the left-right direction. A blower fan (not shown) is attached to the lower side of the can body 3 for the burner (lower side in FIG. 1), and the air required for the combustion of the burner groups 7 and 8 is burned by the blower fan. Supplied inside the body 3. In the present embodiment, the combustion capacity of the first burner group 7 is made larger than that of the second burner group 8, and the first burner group 7 is used for hot water supply and the second burner group 8 is used for bathing. It was decided. The first burner group 7 is an example of the first burner of the present invention, and the second burner group 8 is an example of the second burner of the present invention.

  Further, as shown in FIG. 1, the burner partition member 9 is fixed to the inner surface of the burner can 3. The burner partition member 9 is made of stainless steel and is erected on the bottom surface of the burner can 3 between the first burner group 7 and the second burner group 8 in the vertical direction of the combustion device 1. The side surface on the first burner group 7 side contacts the first burner group 7, and the side surface on the second burner group 8 side of the burner partition member 9 contacts the second burner group 8. In this way, the burner partition member 9 partitions the inside of the burner can 3 into the arrangement side of the first burner group 7 and the arrangement side of the second burner group 8 in the left-right direction of the combustion device 1. ing. As shown in FIGS. 1 and 2, the upper end of the burner partition member 9 protrudes into the heat exchanger can body 4 beyond the upper end portion (upper side in FIG. 1) of the burner can body 3. Further, as shown in FIG. 2, a first pressing portion 11 and a second pressing portion 12 are provided at the upper end of the burner partition member 9. The first pressing portion 11 has a side plate 31 side (FIGS. 1 and 2) in which the upper end portion of the burner partition member 9 is accommodated between a bath-heating heat exchanger 16 and a hot-water heat exchanger 17 described later. It is formed so as to extend in the length direction of the burner partitioning member 9 (the front and back direction in FIGS. 1 and 2) by being bent in a reverse letter shape in front view so as to protrude to the right side of FIG. In addition, the second pressing portion 12 is connected to the tip of the first pressing portion 11. The second pressing portion 12 is accommodated between a heat exchanger 16 for reheating a bath and a heat exchanger 17 for hot water supply, which will be described later, on the upper end side of the first pressing portion 11 in the burner partition member 9. It is formed so as to extend in the length direction of the burner partition member 9 by being bent into a square shape in front view so as to protrude toward the side plate 32 side (left side in FIGS. 1 and 2). The first pressing portion 11 can come into contact with a later-described seal member 38 (see FIG. 2), and can be elastically deformed when pressed from the seal member 38. The second pressing portion 12 can also be brought into contact with a side plate 32 (see FIG. 2) of a heat exchanger partition member 30 described later, and can be elastically deformed when pressed from the side plate 32. The upper end of the burner partition member 9 is an example of an end portion of the burner partition member of the present invention on the heat exchanger partition member side.

  Further, the heat exchanger can body 4 is provided with a bath-heating heat exchanger 16, a hot water supply heat exchanger 17, and a heat exchanger partition member 30 therein. As shown in FIG. 1, in the heat exchanger can 4, a bath reheating heat exchanger 16 and a hot water supply heat exchanger 17 are opposed to each other with an interval in the left-right direction of the combustion device 1. Are installed side by side. This bath-heating heat exchanger 16 is disposed above the second burner group 8 inside the can body 2 as shown in the figure. The upper side of the second burner group 8 corresponds to the downstream side of the flow of combustion gas generated in the second burner group 8. In addition, on the outer circumferential surface of the bath-heating heat exchanger 16, the fin 18 is in the front-rear direction (front and back direction in FIG. 1) perpendicular to the left-right direction (left-right direction in FIG. 1) of the bath-heating heat exchanger 16. ) Are arranged at predetermined intervals. This front-rear direction corresponds to a direction orthogonal to the accommodation direction of the heat exchanger partition member 30 between the bath-heating heat exchanger 16 and the hot water supply heat exchanger 17 (vertical direction in FIGS. 1 and 2). Each fin 18 protrudes from the outer peripheral surface. And each fin 18 is made to penetrate the heat receiving pipe | tube 19 comprised with the continuous pipe | tube. Hot water in the bath is supplied into the heat receiving pipe 19, and the hot water is heated by the heat of the combustion gas generated in the second burner group 8 and returned to the bath. The bath-heating heat exchanger 16 is an example of the second heat exchanger of the present invention, and the upper side of the second burner group 8 is an example of the upper order of the second burner of the present invention.

  Further, as shown in FIG. 1, combustion is performed on the outer surface of each fin 18 of the bath-heating heat exchanger 16 and in a portion facing each fin 22 of the hot water supply heat exchanger 17 in the left-right direction of the combustion device 1. A vertical guide portion 20 extending in the vertical direction of the device 1 is provided.

  On the other hand, the hot water supply heat exchanger 17 is disposed on the upper side of the first burner group 7 inside the can body 2 as shown in FIG. The upper side of the first burner group 7 corresponds to the downstream side of the flow of combustion gas generated in the first burner group 7. In addition, fins 22 are provided on the outer peripheral surface of the hot water supply heat exchanger 17 in the same manner as the bath reheating heat exchanger 16, and the fins 22 are connected to the bath reheating heat exchanger 16 and the hot water supply. A plurality of the heat exchangers 17 are arranged at predetermined intervals in a direction perpendicular to the housing direction of the heat exchanger partition member 30 with respect to the heat exchanger 17 (front and back direction in FIG. 1). And each fin 22 is made to penetrate the heat receiving pipe 23 comprised with the continuous pipe | tube. Water is supplied into the heat receiving pipe 23 from a water supply source (not shown), and the water is heated by the heat of the combustion gas and supplied to a hot water pipe (not shown). The hot water supply heat exchanger 17 is an example of the first heat exchanger of the present invention, and the upper side of the first burner group 7 is an example of the upper rank of the first burner of the present invention.

  Further, as shown in FIG. 1, on the outer surface of each fin 22 of the hot water supply heat exchanger 17, on the part facing each fin 18 of the bath reheating heat exchanger 16 in the left-right direction of the combustion device 1, A vertical guide portion 24 extending in the vertical direction of the combustion apparatus 1 is provided. The vertical guide portion 24 is opposed to the vertical guide portion 20 (see FIG. 1) with an interval in the left-right direction and extends in the vertical direction in parallel with the vertical guide portion 20.

  As shown in FIGS. 1 and 2, the heat exchanger partition member 30 is accommodated between the bath reheating heat exchanger 16 and the hot water supply heat exchanger 17 so as to extend in the vertical direction of the combustion apparatus 1. As a result, the heat exchanger partition member 30 is disposed inside the heat exchanger can 4 in the left-right direction of the combustion apparatus 1 and on the side where the heat exchanger 16 for reheating the bath and the side where the heat exchanger 17 for hot water supply is provided. Partition. The upper end portions of the pair of side plates 31 and 32 made of stainless steel are opposed to each other via a horizontal surface portion 33 (see FIG. 1) formed of a stainless steel plate-like member, thereby exchanging heat. The container partition member 30 is formed to have a substantially inverted U-shaped bifurcated structure having an opening 34 (see FIG. 2) on the lower side (burner partition member 9 side). Here, the pair of side plates 31 and 32 are connected to the horizontal surface portion 33 so as to be elastically deformable in the contact / separation direction of the side plates 31 and 32 (the left-right direction in FIGS. 1 and 2). The horizontal surface portion 33 is provided so as to protrude to the outside of the side plates 31 and 32 in the opposing direction of the side plates 31 and 32.

  As shown in FIG. 2, the lower end of the side plate 31 extends in the length direction of the side plate 31 (front and rear direction in FIG. 2) by bending the lower end side of the side plate 31 inward in the horizontal direction. Thus, a flat plate portion 35 in contact with the opening 34 is formed. In addition, the side plate 31 is provided with reinforcing plates 37 at both ends in the length direction. Each reinforcing plate 37 is formed by bending both end portions of the side plate 31 to the inside of the side plate 31 at right angles to the side plate 31. Each reinforcing portion 37 can suppress the side plate 31 from being bent in the vertical direction. As shown in FIG. 2, a flexible seal member 38 is fixed to the inner surface of the lower end of the side plate 31. The seal member 38 has a belt-like shape extending along the entire length in the length direction of the side plate 31, and is provided along the inner surface of the lower end surface and the flat plate portion 35 between both the reinforcing portions 37, 37. As will be described later, the seal member 38 presses the first pressing portion 11 in order to prevent a gap from being generated between the burner partition member 9 and the heat exchanger partition member 30. In the present embodiment, the seal member 38 is configured by heat resistant packing. The side plate 31 is an example of one side plate of the present invention.

  Further, the side plate 32 is also provided with reinforcing portions 39 similar to those of the side plate 31 at both ends in the length direction of the side plate 32 (front and rear direction in FIGS. 1 and 2). When the heat exchanger partition member 30 is accommodated between the bath-heating heat exchanger 16 and the hot water supply heat exchanger 17, the reinforcing portions 39 are arranged along the back surface of the reinforcing portions 37. As will be described later, the side plate 32 presses the second pressing portion 12 in order to prevent a gap from being generated between the side plate 32 and the second pressing portion 12. The side plate 32 is an example of the other side plate of the present invention.

  As shown in FIG. 1, the exhaust can 5 introduces combustion gas that has passed through the bath-heating heat exchanger 16 and combustion gas that has passed through the hot water supply heat exchanger 17. A second exhaust port (not shown) is formed on the left side of the front surface of the exhaust can body 5, and a first exhaust port (not shown) is formed on the front right side of the exhaust can body 5. . In this embodiment, as will be described later, the combustion gas that has passed through the bath-heating heat exchanger 16 is discharged to the outside of the exhaust can 5 through the second exhaust port. On the other hand, the combustion gas that has passed through the hot water supply heat exchanger 17 is discharged to the outside of the exhaust can 5 through the first exhaust port. And as shown in FIG. 1, it is an inner surface of the exhaust can body 5, and between the first exhaust port and the second exhaust port in the left-right direction of the exhaust can body 5 (left-right direction in FIG. 1), An exhaust can partition member 42 (hereinafter referred to as “partition member 42”) is fixed. The partition member 42 extends in the vertical direction of the combustion device 1, and the inside of the exhaust can 5 is formed in the left-right direction of the combustion device 1 between the first exhaust port formation side and the second exhaust port formation side. Partitioning. The partition member 42 is provided with a pressing portion 43. The pressing portion 43 is formed by bending the lower end portion of the partition member 42 at a substantially right angle with the partition member 42. When the heat exchanger partition member 30 is accommodated between the bath-heating heat exchanger 16 and the hot water supply heat exchanger 17 and the exhaust can 5 is stacked on the heat exchanger can 4 and fixed, the presser The part 43 is configured to press the horizontal surface part 33 of the heat exchanger partition member 30 downward in the combustion device 1.

  Next, the operation | movement which seals between the burner partition member 9 and the heat exchanger partition member 30 is demonstrated. As shown in FIG. 1, the heat exchanger can body 4 is stacked and fixed on the burner can body 3 by fastening screws to the upper end flange of the burner can body 3 and the lower end flange of the heat exchanger can body 4. Thereafter, the heat exchanger partition member 30 is pushed between the heat exchanger 16 for bathing and the heat exchanger 17 for hot water supply from above the heat exchanger can body 4 toward below the combustion apparatus 1. At that time, the pair of side plates 31 and 32 retreat the bath along the vertical guide portion 24 of the fin 22 and the vertical guide portion 20 of the fin 18 while elastically deforming in a direction approaching each other with the horizontal plane portion 33 as a fulcrum. The heat exchanger 16 and the hot water supply heat exchanger 17 are moved below the heat exchanger can 4. As shown in FIG. 1 and FIG. 2, the two support portions 11, 12 are located on the lower side in the vertical direction of the combustion apparatus 1, and the gap between the bath reheating heat exchanger 16 and the hot water supply heat exchanger 17. The pair of side plates 31, 32 are directed toward the both pressing portions 11, 12 by being arranged to face each other and by forming the vertical guide portions 20, 24 in the same direction as the vertical direction of the combustion device 1. Be guided. Subsequently, the heat exchanger partition member 30 is sequentially pushed between the heat exchanger 16 for reheating the bath and the heat exchanger 17 for hot water supply toward the lower side of the can body 4 for the heat exchanger. Then, the protrusion direction front-end | tip part 14 of the 2nd pressing part 12 slides the inner surface of this side plate 32 in the full length of the length direction of the side plate 32, and the opposing direction (FIG. 2) of both side plates 31 and 32 from this inner surface. The second pressing portion 12 is inserted between the side plates 31 and 32 from the opening 34 by being elastically deformed by being pressed in the right and left directions). At the same time, the front end portion 13 of the first pressing portion 11 in the protruding direction is elastically deformed by being pressed in the opposite direction from the side surface while sliding on the side surface of the seal member 38 over the entire length of the side plate 31. Thus, the first pressing portion 11 is inserted between the side plates 31 and 32 from the opening 34.

  The heat exchanger partition member 30 is moved from the outer surface of each of the heat exchangers 16 and 17 to the position where the horizontal surface portion 33 abuts against each of the fins 18 and 22 and the heat exchanger 16 for reheating the bath and the heat exchanger for hot water supply. When pressed between the side plates 31, the side plates 31 are pressed against the vertical guide portions 24 (fins 22) by elastic restoring force. At this time, each vertical guide portion 24 faces the side plate 31 at a predetermined interval in the length direction of the side plate 31 (front and rear direction in FIG. 2). The side plate 31 is pressed uniformly. As a result, the side plate 31 and each vertical guide portion 24 can be easily brought into close contact with each other, so that the generation of a gap between the side plate 31 and each vertical guide portion 24 can be suppressed. At that time, the side plate 31 is fixed to the side plate 31 by being uniformly pressed toward the first pressing portion 11 in the opposite direction over the entire length in the length direction by the vertical guide portions 24. The sealed member 38 is uniformly pressed against the distal end portion 13 in the protruding direction of the first pressing portion 11 with the entire length. As a result, the sealing member 38 is in pressure contact with the distal end portion 13 in the protruding direction over the entire length. Therefore, since it can suppress that a clearance gap arises between the sealing member 38 and the 1st pressing part 11 in the said opposing direction, it is possible to seal between the burner partition member 9 and the heat exchanger partition member 30. become. Moreover, since the first pressing portion 11 can be elastically deformed in addition to the side plate 31, the seal member 38 and the first pressing force are caused by the elastic return force of the side plate 31 and the elastic return force of the first pressing portion 11. It is possible to facilitate the close contact with the pressing portion 11. The hot water supply heat exchanger 17 is an example of one heat exchanger of the present invention.

  In addition to these, the side plate 32 is also in pressure contact with each longitudinal guide portion 20 (each fin 18) by an elastic restoring force. At this time, each vertical guide portion 20 faces the side plate 32 at a predetermined interval in the length direction of the side plate 32 (front and rear direction in FIG. 2). The side plate 32 is pressed uniformly. Then, since the side plate 32 and each vertical guide portion 20 are easily brought into close contact with each other, it is possible to suppress a gap from being generated between the side plate 32 and each vertical guide portion 20. In that case, the side plate 32 is uniformly pressed toward the second pressing portion 12 in the opposite direction over the entire length in the length direction by the respective vertical guide portions 20, so that the inner surface of the side plate 32 is The full length is pressed against the distal end portion 14 of the second pressing portion 12 in the protruding direction. As a result, the inner surface of the side plate 32 is in pressure contact with the distal end portion 14 in the protruding direction over the entire length. Therefore, it can suppress that a clearance gap arises also between the side plate 32 and the 2nd pressing part 12 in the said opposing direction. Moreover, since the second pressing portion 12 can be elastically deformed in addition to the side plate 32, the side plate 32 and the second pressing portion 12 are caused by the elastic return force of the side plate 32 and the elastic return force of the second pressing portion 12. The receiving part 12 can be easily brought into close contact. Furthermore, as shown in FIG. 2, the first pressing portion 11 is connected to the second pressing portion 12, so that the inner surface of the side plate 32 is in the opposite direction of the second pressing portion 12. When pressed toward the projecting direction tip portion 14, the projecting direction tip portion 13 of the first pressing portion 11 can be pressed against the seal member 38. Therefore, since the protrusion direction front-end | tip part 13 can be closely_contact | adhered to the sealing member 38, it becomes possible to improve the sealing performance between the 1st pressing part 11 and the sealing member 38 more. In addition, the heat exchanger 16 for bathing is an example of the other heat exchanger of the present invention.

  Subsequently, the exhaust can body 5 is fastened to the upper end flange of the heat exchanger can body 4 with a screw, so that the exhaust can body 5 is stacked and fixed on the heat exchanger can body 4. Thereby, as shown in FIG. 1, the pressing portion 43 presses the horizontal surface portion 33 (see FIG. 1) of the heat exchanger partition member 30 downward. As a result of the above, the space between the burner partition member 9 and the heat exchanger partition member 30 is sealed while the presser portion 43 is in close contact with the heat exchanger partition member 30. Therefore, the inside of the can 2 can be partitioned into a bath retreating space 45 and a hot water supply space 46 in the left-right direction of the combustion device 1. In this bath retreating space 45, it is difficult for a gap to be formed between the side plate 32 and the vertical guide portion 20, so that the combustion gas generated in the second burner group 8 is suppressed from leaking from the gap. As a result, the bath-heating heat exchanger 16 can stably receive the heat of the combustion gas. In the bath reheating space 45, the combustion gas generated in the second burner group 8 passes through the bath reheating heat exchanger 16 and is then guided to the second exhaust port. The combustion gas is discharged to the outside of the exhaust can 5 through the second exhaust port.

  On the other hand, in the hot water supply space 46, it is difficult for a gap to be formed between the side plate 31 and the vertical guide portion 24, so that the combustion gas generated in the first burner group 7 is suppressed from leaking from the gap. As a result, the hot water supply heat exchanger 17 can stably receive the heat of the combustion gas. In the hot water supply space 46, the combustion gas generated in the first burner group 7 passes through the hot water supply heat exchanger 17 and then is guided to the first exhaust port. The combustion gas is discharged to the outside of the exhaust can 5 through the first exhaust port.

<Effect of this embodiment>
In the combustion apparatus 1 of the present embodiment, the seal member 38 fixed to the side plate 31 is protruded from the first pressing portion 11 in the opposing direction of the pair of side plates 31 and 32 over the entire length of the side plate 31. The sealing member 38 can be pressed against the distal end portion 13 in the protruding direction over the entire length by uniformly pressing the distal end portion 13 in the direction. Therefore, since it can suppress that a clearance gap arises between the sealing member 38 and the 1st pressing part 11 in the said opposing direction, the sealing performance between the burner partition member 9 and the heat exchanger partition member 30 is improved. be able to.

  Further, the side plate 32 is uniformly pressed against the distal end portion 14 in the protruding direction of the second pressing portion 13 in the opposing direction of the pair of side plates 31 and 32 over the entire length in the length direction of the side plate 32. Can be brought into pressure contact with the front end portion 14 in the protruding direction over the entire length. Therefore, it can suppress that a clearance gap arises also between the side plate 32 and the 2nd pressing part 12 in the said opposing direction.

  Further, when the inner surface of the side plate 32 is pressed toward the protruding direction tip portion 14 of the second pressing portion 12 in the facing direction of the pair of side plates 31, 32, the protruding direction tip of the first pressing portion 11. The portion 13 can be pressed against the seal member 38. Therefore, since the protrusion direction front-end | tip part 13 can be closely_contact | adhered to the sealing member 38, it becomes possible to improve the sealing performance between the 1st pressing part 11 and the sealing member 38 more.

  In addition, the side plate 31 can be uniformly pressed in the length direction of the side plate 31 by the vertical guide portions 24 (the fins 22) in the hot water supply heat exchanger 17. As a result, the seal member 38 fixed to the side plate 31 is uniformly pressed against the front end portion 13 in the protruding direction of the first pressing portion 11 over the entire length in the length direction, and the seal member is opposed to the side plates 31 and 32. The sealing performance between 38 and the first pressing portion 11 can be further improved. In addition, when each side guide 31 is pressed uniformly in the opposing direction of the side plates 31 and 32, the side plate 31 and each longitudinal guide portion 24 are easily brought into close contact with each other, so that each side guide 31 and each longitudinal guide portion 24. It can suppress that a clearance gap produces between 24. Thereby, the hot water supply heat exchanger 17 can stably receive the heat of the combustion gas generated in the first burner group 7. Therefore, the thermal efficiency of the hot water supply heat exchanger 17 can be improved.

  In addition, the side plates 32 can be uniformly pressed in the length direction of the side plates 32 by the vertical guide portions 20 (the fins 18) in the bath-heating heat exchanger 16. As a result, the side plate 32 is uniformly pressed against the front end portion 14 in the protruding direction of the second pressing portion 12 with the entire length in the length direction, and the side plate 32 and the second pressing portion are opposed to the side plates 31 and 32. It can suppress more that a clearance gap arises also between the parts 12. In addition, when each side guide 32 is pressed evenly in the opposing direction of the side plates 31, 32, the side plates 32 and each longitudinal guide 20 are easily brought into close contact with each other, so that each side guide 32 and each longitudinal guide 20 are in close contact with each other. It can suppress that a clearance gap produces between the parts 20. As a result, the bath-heating heat exchanger 16 can stably receive the heat of the combustion gas generated in the second burner group 8. Therefore, the thermal efficiency of the heat exchanger 16 for bathing can be improved.

  Further, in a state where the side plates 31 and 32 are accommodated between the bath-heating heat exchanger 16 and the hot water supply heat exchanger 17, the elastic return force of the side plates 31 and 32 and the pressing portions 11 and 12. Thus, the seal member 38 and the first pressing portion 11 can be easily brought into close contact with each other, and the side plate 32 and the second pressing portion 12 can be easily brought into close contact with each other.

  The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. Unlike the embodiment described above, for example, the first pressing portion is viewed from the front so as to protrude toward the side plate 32 accommodated between the bath-heating heat exchanger 16 and the hot water supply heat exchanger 17. It is formed by bending it in the shape of a dogleg, and the second pressing part is connected to the tip of the first pressing part so that it protrudes toward the side plate 31 and is reversed in front view. It may be formed in a bent shape. In this case, a belt-like seal member extending to the entire length in the length direction of the side plate 32 is fixed to the inner surface of the lower end of the side plate 32, and the seal member serves as the first U-shaped pressing portion. By pressing, it may be suppressed that a gap is generated between the burner partition member and the heat exchanger partition member. In that case, you may suppress that a clearance gap produces between the said side plate 31 and the said 2nd pressing part by pressing the inner surface of the side plate 31 to the said 2nd pressing part.

  In addition, unlike the above-described embodiment, the burner partition member 9 is provided with only the first pressing portion 11 to suppress the occurrence of a gap between the burner partition member 9 and the heat exchanger partition member 30. In addition, the seal member 38 may only press the first pressing portion 11. Further, the seal member 38 is not limited to the heat resistant packing, and may be formed of a metal packing, for example.

  1 .. Combustion device, 2 .. Can body, 7 .. 1st burner group, 8 .. 2nd burner group, 9 .. Burner partition member, 11. ······································································································· Heat exchanger, 18 .. heat exchanger fins for bathing, 22 .. heat exchanger fins for hot water supply, 30 .. heat exchanger partition members, 31, 32. Opening part of heat exchanger partition member, 38 .. seal member.

Claims (6)

A first burner and a second burner are juxtaposed in the lower part of the apparatus main body, and the first heat exchanger is arranged in the apparatus main body above the first burner in the apparatus main body. A second heat exchanger is disposed above the second burner, the first heat exchanger is heated by the combustion heat of the first burner, and the combustion heat of the second burner is used. A burner partition member for partitioning the first burner and the second burner so that the second heat exchanger is heated; and the first heat exchanger and the second heat exchange. A heat exchanger partitioning member for partitioning between the heat exchanger and the combustion device,
The heat exchanger partition member is formed in an inverted U-shaped bifurcated shape in which a pair of side plates facing each other have an opening on the burner partition member side, and the side plate is formed on the inner surface of one of the side plates. A seal member is attached to the entire length in the length direction of
When the pair of side plates are housed between the first heat exchanger and the second heat exchanger by being brought into pressure contact with the first heat exchanger and the second heat exchanger, The burner partition member is inserted between the pair of side plates through the opening, contacts the seal member over the entire length, and is pressed from the seal member in the opposing direction of the pair of side plates. The combustion apparatus characterized by having a part.   The burner partition member has a second pressing portion that is continuous with the first pressing portion and contacts the entire length of the inner surface of the other side plate and is pressed from the other side plate. The combustion apparatus according to claim 1. The first pressing portion is bent such that an end portion of the burner partition member on the heat exchanger partition member side protrudes toward the one side plate in the facing direction, and a tip in the protrusion direction is the one side. It is possible to contact the sealing member over the entire length of the side plate of the side plate,
The second pressing portion is continuously bent with the first pressing portion so as to protrude toward the other side plate in the facing direction, and the tip in the protruding direction is the above-mentioned side plate of the other side plate. The combustion apparatus according to claim 2, wherein the combustion apparatus is capable of contacting the entire length. Of the first heat exchanger and the second heat exchanger, the first heat exchanger and the second heat exchange are arranged on the outer periphery of one heat exchanger with which the one side plate is pressed. Projecting a plurality of fins at a predetermined interval in the length direction of the one side plate corresponding to the direction orthogonal to the accommodation direction of the pair of side plates relative to the container,
When the pair of side plates are accommodated between the first heat exchanger and the second heat exchanger, the one side plate is pressed from the plurality of fins in the facing direction. The combustion apparatus according to claim 3, wherein the combustion apparatus is characterized. A plurality of fins are protruded from the outer periphery of the other heat exchanger, which is in pressure contact with the other side plate, at a predetermined interval in the length direction of the other side plate that is in a direction perpendicular to the accommodation direction,
When the pair of side plates are accommodated between the first heat exchanger and the second heat exchanger, the other side plate has the plurality of the heat exchangers in the other heat exchanger in the facing direction. The combustion apparatus according to claim 4, wherein the combustion apparatus is pressed from a fin. The heat exchanger partition member is formed so that the pair of side plates can be elastically deformed in the contact / separation direction,
6. The combustion apparatus according to claim 2, wherein the first pressing portion and the second pressing portion are configured to be elastically deformable.

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