JP2019113280A - Heat exchange device and heat source machine - Google Patents

Heat exchange device and heat source machine Download PDF

Info

Publication number
JP2019113280A
JP2019113280A JP2017248716A JP2017248716A JP2019113280A JP 2019113280 A JP2019113280 A JP 2019113280A JP 2017248716 A JP2017248716 A JP 2017248716A JP 2017248716 A JP2017248716 A JP 2017248716A JP 2019113280 A JP2019113280 A JP 2019113280A
Authority
JP
Japan
Prior art keywords
pipes
heat exchanger
exchange device
heat exchange
straight portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2017248716A
Other languages
Japanese (ja)
Other versions
JP7052341B2 (en
Inventor
健 大東
Takeshi Daito
健 大東
正樹 今藤
Masaki Kondo
正樹 今藤
憲英 和田
Norihide Wada
憲英 和田
信宏 竹田
Nobuhiro Takeda
信宏 竹田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noritz Corp
Original Assignee
Noritz Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Noritz Corp filed Critical Noritz Corp
Priority to JP2017248716A priority Critical patent/JP7052341B2/en
Priority to CN201811441144.5A priority patent/CN109959169B/en
Priority to US16/208,585 priority patent/US20190195563A1/en
Publication of JP2019113280A publication Critical patent/JP2019113280A/en
Application granted granted Critical
Publication of JP7052341B2 publication Critical patent/JP7052341B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0443—Combination of units extending one beside or one above the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/30—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • F24H1/445—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40 with integrated flue gas condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0461—Combination of different types of heat exchanger, e.g. radiator combined with tube-and-shell heat exchanger; Arrangement of conduits for heat exchange between at least two media and for heat exchange between at least one medium and the large body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
    • F28D21/0007—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0024—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion apparatus, e.g. for boilers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

To provide a heat exchange device that can improve drainage characteristics and improve a distribution balance of water, and a heat source machine having the same.SOLUTION: A heat exchange device 200 comprises a primary heat exchanger 10 and a secondary heat exchanger 20. The secondary heat exchanger 20 is disposed to overlap the primary heat exchanger 10 in a vertical direction in a state in which the heat exchange device 200 is installed. The secondary heat exchanger 20 includes a plurality of first pipes 21a and a plurality of second pipes 21b. Each of the plurality of first pipes 21a and the plurality of second pipes 21b extends in a zigzag manner in the vertical direction by a plurality of linear portions 21c being connected to a plurality of curved portions 21d in series. Each of the plurality of linear portions 21c of each of the plurality of second pipes 21b is disposed to be displaced from each of the plurality of linear portions 21c of each of the plurality of first pipes 21a in the vertical direction.SELECTED DRAWING: Figure 8

Description

本発明は、熱交換装置および熱源機に関し、特に、一次熱交換器および二次熱交換器を有する熱交換装置およびそれを備えた熱源機に関するものである。   The present invention relates to a heat exchange device and a heat source machine, and more particularly to a heat exchange device having a primary heat exchanger and a secondary heat exchanger, and a heat source machine equipped with the same.

従来、顕熱を回収するための一次熱交換器および潜熱を回収するための二次熱交換器を備えた熱交換装置が提案されている。この熱交換装置は、たとえば特開２０１７−２１１１７３号公報（特許文献１）に記載されている。この公報に記載された熱交換装置では、二次熱交換器は複数の吸熱パイプを有している。複数の吸熱パイプは上下に並んでいる。複数の吸熱パイプの各々は前後方向に蛇行して延びている。   Heretofore, a heat exchange apparatus has been proposed which comprises a primary heat exchanger for recovering sensible heat and a secondary heat exchanger for recovering latent heat. This heat exchange device is described, for example, in JP-A-2017-211173 (Patent Document 1). In the heat exchange device described in this publication, the secondary heat exchanger has a plurality of heat absorption pipes. Several heat absorption pipes are lined up and down. Each of the plurality of heat absorption pipes extends meandering in the front-rear direction.

特開２０１７−２１１１７３号公報JP, 2017-211173, A

上記の公報に記載された熱交換装置では、複数の吸熱パイプの各々が前後方向（水平方向）に蛇行して延びているため、吸熱パイプから水を排出するときに排水性が悪いという問題がある。また、一次熱交換器から二次熱交換器に流入した燃焼ガスは複数の吸熱パイプのうち最も上方に位置する吸熱パイプに最初に接触するため、最も上方に位置する吸熱パイプが最も高温になる。このため、最も上方に位置する吸熱パイプの下方に位置する吸熱パイプよりも最も上方に位置する吸熱パイプには、水に含まれるミネラル分が析出したスケール（缶石）が堆積しやすい。したがって、複数の吸熱パイプ間において水の分配バランスが悪くなるという問題がある。   In the heat exchange device described in the above publication, each of the plurality of heat absorbing pipes meanders and extends in the front-rear direction (horizontal direction), so that there is a problem that the drainage performance is poor when water is discharged from the heat absorbing pipes. is there. Also, since the combustion gas flowing from the primary heat exchanger into the secondary heat exchanger first contacts the heat absorption pipe positioned at the top among the plurality of heat absorption pipes, the heat absorption pipe positioned at the top becomes the highest temperature . For this reason, the scale (scale) in which the mineral component contained in water deposited tends to be deposited on the heat absorption pipe located uppermost rather than the heat absorption pipe located below the heat absorption pipe located uppermost. Therefore, there is a problem that the distribution balance of water becomes worse among a plurality of heat absorption pipes.

本発明は上記課題に鑑みてなされたものであり、その目的は、排水性を向上させることができ、かつ水の分配バランスを向上させることができる熱交換装置およびそれを備えた熱源機を提供することである。   The present invention has been made in view of the above problems, and an object thereof is to provide a heat exchange device capable of improving drainage performance and improving the distribution balance of water, and a heat source machine equipped with the same. It is to be.

本発明の熱交換装置は、燃焼ガスの顕熱および潜熱を回収可能な熱交換装置である。熱交換装置は、一次熱交換器と、二次熱交換器とを備えている。一次熱交換器は、燃焼ガスの顕熱を回収するためのものである。二次熱交換器は、熱交換装置が設置された状態において一次熱交換器に鉛直方向に重なるように配置され、かつ燃焼ガスの潜熱を回収するためのものである。二次熱交換器は、複数の第１管と、各々が複数の第１管の各々と鉛直方向に交差する方向に交互に隣り合う複数の第２管とを含んでいる。複数の第１管および複数の第２管の各々は、複数の直線部と、複数の直線部同士を接続する複数の湾曲部とを有し、複数の直線部と複数の湾曲部とが直列に接続されることにより蛇行しながら鉛直方向に延びている。複数の第２管の各々の複数の直線部の各々は、複数の第１管の各々の複数の直線部の各々と鉛直方向にずれるように配置されている。   The heat exchange device of the present invention is a heat exchange device capable of recovering sensible heat and latent heat of combustion gas. The heat exchange device comprises a primary heat exchanger and a secondary heat exchanger. The primary heat exchanger is for recovering sensible heat of the combustion gas. The secondary heat exchanger is disposed so as to vertically overlap the primary heat exchanger in a state where the heat exchange device is installed, and is for recovering the latent heat of the combustion gas. The secondary heat exchanger includes a plurality of first pipes and a plurality of second pipes that are alternately adjacent to each other in the direction perpendicular to each of the plurality of first pipes. Each of the plurality of first pipes and the plurality of second pipes has a plurality of straight portions and a plurality of curved portions connecting the plurality of straight portions, and the plurality of straight portions and the plurality of curved portions are in series Extends vertically while meandering. Each of the plurality of straight portions of each of the plurality of second pipes is vertically offset from each of the plurality of straight portions of each of the plurality of first pipes.

本発明の熱交換装置によれば、複数の第１管および複数の第２管の各々は、複数の直線部と複数の湾曲部とが直列に接続されることにより蛇行しながら鉛直方向に延びている。したがって、複数の第１管および複数の第２管の各々から水を排出するときに、水が重力により上から下に流れるため、排水性を向上させることができる。また、熱交換装置が設置された状態において一次熱交換器に鉛直方向に重なるように二次熱交換器が配置されているため、燃焼ガスは鉛直方向に二次熱交換器へ流入する。複数の第１管と複数の第２管とが鉛直方向に交差する方向に配置されているため、複数の第１管の各々および複数の第２管の各々はそれぞれ燃焼ガスに均一に接触する。したがって、複数の第１管の各々および複数の第２管の各々にそれぞれスケール（缶石）が均一に堆積する。このため、複数の第１管および複数の第２管のそれぞれにおいて水の分配バランスが悪くなることを抑制することができる。すなわち、水の分配バランスを向上させることができる。さらに、複数の第２管の各々の複数の直線部の各々は、複数の第１管の各々の複数の直線部の各々と鉛直方向にずれるように配置されている。このため、複数の第１管の各々の複数の直線部の各々と複数の第２管の各々の複数の直線部の各々との間を燃焼ガスが鉛直方向に流れるときの流路抵抗を低減させることができる。   According to the heat exchange device of the present invention, each of the plurality of first pipes and the plurality of second pipes extends in the vertical direction while meandering by connecting the plurality of straight portions and the plurality of curved portions in series. ing. Therefore, when the water is discharged from each of the plurality of first pipes and the plurality of second pipes, the water flows from the top to the bottom by gravity, so that the drainage property can be improved. Further, since the secondary heat exchanger is disposed so as to vertically overlap the primary heat exchanger in the state where the heat exchange device is installed, the combustion gas flows into the secondary heat exchanger in the vertical direction. Since the plurality of first pipes and the plurality of second pipes are disposed in the direction perpendicular to the vertical direction, each of the plurality of first pipes and each of the plurality of second pipes uniformly contacts the combustion gas, respectively. . Therefore, scale (scale) is uniformly deposited on each of the plurality of first pipes and each of the plurality of second pipes. For this reason, it can suppress that distribution balance of water worsens in each of a plurality of 1st pipes and a plurality of 2nd pipes. That is, the distribution balance of water can be improved. Furthermore, each of the plurality of straight portions of each of the plurality of second pipes is vertically offset from each of the plurality of straight portions of each of the plurality of first pipes. Therefore, the flow path resistance is reduced when the combustion gas flows in the vertical direction between each of the plurality of straight portions of each of the plurality of first pipes and each of the plurality of straight portions of each of the plurality of second pipes It can be done.

上記の熱交換装置において、一次熱交換器は、複数のフィンパイプを含んでいる。複数のフィンパイプの各々は、複数の直線部が延びる方向に沿って延びている。このため、複数のフィンパイプの各々の間を流れる燃焼ガスの流れに沿って複数の第１管の各々および複数の第２管の各々の間を燃焼ガスが流れる。したがって、一次熱交換器から二次熱交換器に燃焼ガスが鉛直方向に流れるときの流路抵抗を低減させることができる。   In the above heat exchange device, the primary heat exchanger includes a plurality of finned pipes. Each of the plurality of fin pipes extends along the direction in which the plurality of straight portions extend. Therefore, the combustion gas flows between each of the plurality of first pipes and each of the plurality of second pipes along the flow of the combustion gas flowing between each of the plurality of fin pipes. Therefore, it is possible to reduce the flow path resistance when the combustion gas flows in the vertical direction from the primary heat exchanger to the secondary heat exchanger.

上記の熱交換装置において、二次熱交換器は、複数の第１管および複数の第２管を取り囲む周壁部を含んでいる。周壁部は、本体部と、本体部から外側に向けて膨出する膨出部とを含んでいる。複数の第１管および複数の第２管は、本体部によって取り囲まれた周壁部の内部空間内と、膨出部によって膨らんだ周壁部の内部空間内とに配置されている。このため、本体部を膨出部よりも小さくすることができる。また、複数の第１管および複数の第２管が膨出部によって膨らんだ周壁部の内部空間内に配置されているため、膨出部が無い場合に比べて複数の第１管および複数の第２管の伝熱面積を増やすことができる。したがって、本体部を小型化しつつ複数の第１管および複数の第２管の熱交換効率を向上させることができる。   In the above-described heat exchange device, the secondary heat exchanger includes a peripheral wall portion surrounding the plurality of first pipes and the plurality of second pipes. The peripheral wall portion includes a main body portion and a bulging portion that bulges outward from the main body portion. The plurality of first pipes and the plurality of second pipes are disposed in an inner space of the peripheral wall portion surrounded by the main body portion and in an inner space of the peripheral wall portion expanded by the bulging portion. Therefore, the main body portion can be smaller than the bulging portion. Further, since the plurality of first pipes and the plurality of second pipes are disposed in the internal space of the peripheral wall portion expanded by the bulging portion, the plurality of first pipes and the plurality of plurality of pipes are compared compared to the case without the bulging portion. The heat transfer area of the second pipe can be increased. Therefore, the heat exchange efficiency of the plurality of first pipes and the plurality of second pipes can be improved while miniaturizing the main body.

本発明の熱源機は、上記の熱交換装置と、バーナとを備えている。バーナは、一次熱交換器に対して二次熱交換器と反対側に配置されている。バーナは、一次熱交換器および二次熱交換器の順に前記燃焼ガスを供給可能に構成されている。本発明の熱源機によれば、排水性を向上させることができ、かつ水の分配バランスを改善させることができる熱交換装置を備えた熱源機を提供することができる。   The heat source machine of the present invention is provided with the above-mentioned heat exchange device and a burner. The burner is disposed opposite to the secondary heat exchanger with respect to the primary heat exchanger. The burner is configured to be able to supply the combustion gas in the order of the primary heat exchanger and the secondary heat exchanger. According to the heat source machine of the present invention, it is possible to provide a heat source machine provided with a heat exchange device capable of improving drainage performance and improving the distribution balance of water.

以上説明したように、本発明によれば、排水性を向上させることができ、かつ水の分配バランスを向上させることができる熱交換装置およびそれを備えた熱源機を提供することができる。   As described above, according to the present invention, it is possible to provide a heat exchange device capable of improving drainage performance and improving the distribution balance of water, and a heat source unit equipped with the same.

本発明の一実施の形態における熱源機の構成を模式的に示す図である。It is a figure which shows typically the structure of the heat-source equipment in one embodiment of this invention. 本発明の一実施の形態における熱交換装置の構成を概略的に示す斜視図である。It is a perspective view which shows roughly the structure of the heat exchange apparatus in one embodiment of this invention. 本発明の一実施の形態における熱交換器の内部構造を破線で示す側面図である。It is a side view which shows the internal structure of the heat exchanger in one embodiment of this invention with a broken line. 本発明の一実施の形態における二次熱交換器の構成を概略的に示す斜視図である。It is a perspective view which shows roughly the structure of the secondary heat exchanger in one embodiment of this invention. 本発明の一実施の形態における二次熱交換器の構成を概略的に示す分解斜視図である。It is a disassembled perspective view which shows roughly the structure of the secondary heat exchanger in one embodiment of this invention. 本発明の一実施の形態における二次熱交換器の構成を概略的に示す上面図である。It is a top view which shows roughly the structure of the secondary heat exchanger in one embodiment of this invention. 本発明の一実施の形態における熱交換装置の内部構造を破線で示す背面図である。It is a rear view which shows the internal structure of the heat exchange apparatus in one embodiment of this invention with a broken line. 図２のＶＩＩＩ−ＶＩＩＩ線に沿う断面図である。It is sectional drawing which follows the VIII-VIII line of FIG. 図２のＩＸ−ＩＸ線に沿う断面図である。It is sectional drawing in alignment with the IX-IX line of FIG.

以下、本発明の実施の形態について図に基づいて説明する。
まず、図１を参照して、本発明の一実施の形態における熱源機１００の構成について説明する。 Hereinafter, embodiments of the present invention will be described based on the drawings.
First, with reference to FIG. 1, the structure of the heat-source equipment 100 in one embodiment of this invention is demonstrated.

図１に示されるように、本実施の形態の熱源機１００は、点火プラグ１と、一次熱交換器（顕熱回収熱交換器）１０と、二次熱交換器（潜熱回収熱交換器）２０と、バーナ３０と、チャンバ３１と、送風装置３２と、ダクト３３と、ベンチュリ３４、オリフィス３５、ガスバルブ３６、配管４０と、バイパス配管４１と、三方弁４２と、筐体５０とを主に有している。一次熱交換器１０および二次熱交換器２０は熱交換装置２００を構成している。筐体５０の内部に、上記の部品のうち筐体５０を除く全ての部品が配置されている。上記の部品は熱交換装置２００を除いて従来公知のものと同様である。   As shown in FIG. 1, the heat source unit 100 of the present embodiment includes an ignition plug 1, a primary heat exchanger (sensible heat recovery heat exchanger) 10, and a secondary heat exchanger (latent heat recovery heat exchanger) 20, burner 30, chamber 31, blower 32, duct 33, venturi 34, orifice 35, gas valve 36, piping 40, bypass piping 41, three-way valve 42, and housing 50 mainly Have. The primary heat exchanger 10 and the secondary heat exchanger 20 constitute a heat exchange device 200. Of the above-described components, all components except the housing 50 are disposed inside the housing 50. The above components are the same as those conventionally known except for the heat exchange device 200.

燃料ガスは、ガスバルブ３６とオリフィス３５とを通じてベンチュリ３４に流れる。ベンチュリ３４で混合された混合ガスは送風装置３２に送られる。送風装置３２は、混合ガスをバーナ３０へ供給するためのものである。送風装置３２はチャンバ３１に接続されており、チャンバ３１はバーナ３０に接続されている。送風装置３２から供給された混合ガスは、チャンバ３１を通じてバーナ３０に送られる。バーナ３０は、一次熱交換器１０に供給される加熱用気体（燃焼ガス）を発生させるためのものである。バーナ３０から吹出される混合ガスは、点火プラグ１によって着火され、燃焼ガスとなる。   The fuel gas flows to the venturi 34 through the gas valve 36 and the orifice 35. The mixed gas mixed in the venturi 34 is sent to the blower 32. The blower 32 is for supplying the mixed gas to the burner 30. The blower 32 is connected to the chamber 31, which is connected to the burner 30. The mixed gas supplied from the blower 32 is sent to the burner 30 through the chamber 31. The burner 30 is for generating a heating gas (combustion gas) supplied to the primary heat exchanger 10. The mixed gas blown out of the burner 30 is ignited by the spark plug 1 and becomes a combustion gas.

燃焼ガスが一次熱交換器１０および二次熱交換器２０を順に通過して湯水と熱交換するように、バーナ３０、一次熱交換器１０および二次熱交換器２０が接続されている。バーナ３０は、一次熱交換器１０に対して二次熱交換器２０と反対側に配置されている。バーナ３０は、一次熱交換器１０および二次熱交換器２０の順に燃焼ガスを供給可能に構成されている。本実施の形態では、バーナ３０は一次熱交換器１０の上方に配置されている。つまり、バーナ３０は逆燃方式である。また、バーナ３０は燃焼室間口全域で能力が変動するプレミックスバーナであってもよい。二次熱交換器２０にはダクト３３が接続されており、ダクト３３は筐体５０の外部へ延びている。これにより、二次熱交換器２０を通過した燃焼ガスは、ダクト３３を通じて筐体５０の外部へ排出される。一次熱交換器１０よりも出湯側の配管４０の部分とバイパス配管４１とは三方弁４２で接続されている。   A burner 30, a primary heat exchanger 10 and a secondary heat exchanger 20 are connected so that the combustion gas sequentially passes through the primary heat exchanger 10 and the secondary heat exchanger 20 and exchanges heat with hot water. The burner 30 is disposed opposite to the secondary heat exchanger 20 with respect to the primary heat exchanger 10. The burner 30 is configured to be able to supply combustion gas in the order of the primary heat exchanger 10 and the secondary heat exchanger 20. In the present embodiment, the burner 30 is disposed above the primary heat exchanger 10. That is, the burner 30 is a reverse combustion system. Further, the burner 30 may be a premix burner whose capacity varies in the entire combustion chamber front opening. A duct 33 is connected to the secondary heat exchanger 20, and the duct 33 extends to the outside of the housing 50. Thus, the combustion gas that has passed through the secondary heat exchanger 20 is discharged to the outside of the housing 50 through the duct 33. A portion of the pipe 40 on the hot water outlet side of the primary heat exchanger 10 and the bypass pipe 41 are connected by a three-way valve 42.

次に、図２〜図９を参照して、本実施の形態の熱交換装置２００の構成について説明する。図２および図３に示されるように、熱交換装置２００は、燃焼ガスの顕熱および潜熱を回収可能なものである。熱交換装置２００は、一次熱交換器１０と、二次熱交換器２０とを有している。一次熱交換器１０は、燃焼ガスの顕熱を回収するためのものである。二次熱交換器２０は、燃焼ガスの潜熱を回収するためのものである。一次熱交換器１０と二次熱交換器２０とは第１方向Ｄ１に重なるように配置されている。二次熱交換器２０は、熱交換装置２００が設置された状態において一次熱交換器１０に鉛直方向に重なるように配置されている。つまり、熱交換装置２００が設置された状態において、第１方向Ｄ１は鉛直方向となる。   Next, with reference to FIGS. 2-9, the structure of the heat exchange apparatus 200 of this Embodiment is demonstrated. As shown in FIGS. 2 and 3, the heat exchange device 200 is capable of recovering sensible heat and latent heat of the combustion gas. The heat exchange device 200 includes a primary heat exchanger 10 and a secondary heat exchanger 20. The primary heat exchanger 10 is for recovering sensible heat of the combustion gas. The secondary heat exchanger 20 is for recovering the latent heat of the combustion gas. The primary heat exchanger 10 and the secondary heat exchanger 20 are arranged to overlap in the first direction D1. The secondary heat exchanger 20 is disposed to vertically overlap the primary heat exchanger 10 in a state where the heat exchange device 200 is installed. That is, in the state where the heat exchange device 200 is installed, the first direction D1 is the vertical direction.

一次熱交換器１０は、二次熱交換器２０に接続されている。一次熱交換器１０の上側の開口を通って燃焼ガスが給気され、二次熱交換器２０の下側の開口を通って燃焼ガスが排気される。二次熱交換器２０の入水部２０ａから二次熱交換器２０に入水した湯水は、燃焼ガスとの間で熱交換された後に出湯部２０ｂから出湯し、図示しない配管を経由して、一次熱交換器１０の入水部１０ａに入水する。一次熱交換器１０の入水部１０ａに入水した湯水は、燃焼ガスとの間で熱交換された後に出湯部１０ｂから出湯する。入水部１０ａは、一次熱交換器１０に最初に湯水が入水する部分である。出湯部１０ｂは、一次熱交換器１０から最後に湯水が出湯する部分である。   The primary heat exchanger 10 is connected to the secondary heat exchanger 20. The combustion gas is supplied through the upper opening of the primary heat exchanger 10, and the combustion gas is exhausted through the lower opening of the secondary heat exchanger 20. The hot and cold water that has entered the secondary heat exchanger 20 from the water inlet 20a of the secondary heat exchanger 20 is subjected to heat exchange with the combustion gas, and then exits from the hot water outlet 20b and passes through the piping (not shown). The water enters the water inlet 10 a of the heat exchanger 10. The hot and cold water that has entered the water inlet portion 10a of the primary heat exchanger 10 undergoes heat exchange with the combustion gas and then leaves the hot water outlet 10b. The water inlet 10 a is a portion where hot water first enters the primary heat exchanger 10. The hot water discharge portion 10 b is a portion where hot and cold water is finally discharged from the primary heat exchanger 10.

一次熱交換器１０は、入水部１０ａと、出湯部１０ｂと、熱交換部１１と、胴板１２と、胴パイプ部１３と、ヘッダ部材１４と、ベンドパイプ１５とを備えている。熱交換部１１は、複数のフィン１１ａと、複数のフィンパイプ１１ｂとを含んでいる。複数のフィン１１ａおよび複数のフィンパイプ１１ｂの各々は、ＳＵＳ（ステンレス鋼）製であってもよい。熱交換部１１は、複数のフィン１１ａおよび複数のフィンパイプ１１ｂの外部を燃焼ガスが流れ、複数のフィンパイプ１１ｂの内部を水が流れるように構成されている。複数のフィン１１ａは互いに積層されている。複数のフィンパイプ１１ｂは複数のフィン１１ａを貫通している。なお、図２および図３においては、説明の便宜のため、複数のフィン１１ａのうち一部のみが図示されている。   The primary heat exchanger 10 includes a water inlet 10a, a hot water outlet 10b, a heat exchanger 11, a shell plate 12, a shell pipe 13, a header member 14, and a bend pipe 15. The heat exchange unit 11 includes a plurality of fins 11 a and a plurality of fin pipes 11 b. Each of the plurality of fins 11 a and the plurality of fin pipes 11 b may be made of SUS (stainless steel). The heat exchange unit 11 is configured such that the combustion gas flows outside the plurality of fins 11 a and the plurality of fin pipes 11 b and water flows inside the plurality of fin pipes 11 b. The plurality of fins 11a are stacked on one another. The plurality of fin pipes 11b pass through the plurality of fins 11a. In FIG. 2 and FIG. 3, only a part of the plurality of fins 11a is illustrated for the convenience of description.

胴板１２は、熱交換部１１の周囲を取り囲んでいる。胴板１２は、正面部１２ａと、一対の側面部１２ｂと、背面部１２ｃとを含んでいる。正面部１２ａ、一対の側面部１２ｂおよび背面部１２ｃは四角の枠を構成している。胴板１２は上下に開口を有している。胴板１２は、上側の開口を通って胴板１２の内側へ燃焼ガスを給気可能である。胴板１２は、下側の開口を通って燃焼ガスを胴板１２の外側へ排気可能である。   The body plate 12 surrounds the heat exchange section 11. The trunk plate 12 includes a front surface portion 12a, a pair of side surface portions 12b, and a back surface portion 12c. The front part 12a, the pair of side parts 12b and the back part 12c constitute a square frame. The trunk plate 12 has openings at the top and bottom. The body plate 12 can supply combustion gas to the inside of the body plate 12 through the upper opening. The body plate 12 can exhaust the combustion gas to the outside of the body plate 12 through the lower opening.

胴パイプ部１３は、胴板１２の一対の側面部１２ｂおよび背面部１２ｃの内側面に沿うように配置されている。胴パイプ部１３は、第１冷却パイプ１３１、第２冷却パイプ１３２および第３冷却パイプ１３３を含んでいる。第１冷却パイプ１３１、第２冷却パイプ１３２および第３冷却パイプ１３３は、第１方向Ｄ１に並んで設置されている。第１冷却パイプ１３１、第２冷却パイプ１３２および第３冷却パイプ１３３は、ヘッダ部材１４を介して直列に接続されている。ヘッダ部材１４は、胴板１２の正面部１２ａに取り付けられている。ヘッダ部材１４は、第１ヘッダ部材１４１と、第２ヘッダ部材１４２とを含んでいる。   The body pipe portion 13 is disposed along the inner side surfaces of the pair of side surface portions 12 b and the back surface portion 12 c of the body plate 12. The body pipe portion 13 includes a first cooling pipe 131, a second cooling pipe 132 and a third cooling pipe 133. The first cooling pipe 131, the second cooling pipe 132, and the third cooling pipe 133 are installed side by side in the first direction D1. The first cooling pipe 131, the second cooling pipe 132 and the third cooling pipe 133 are connected in series via the header member 14. The header member 14 is attached to the front portion 12 a of the trunk plate 12. The header member 14 includes a first header member 141 and a second header member 142.

第１冷却パイプ１３１の一方端は入水部１０ａに接続されており、第１冷却パイプ１３１の他方端は第１ヘッダ部材１４１に接続されている。第２冷却パイプ１３２の一方端は第１ヘッダ部材１４１に接続されており、第２冷却パイプ１３２の他方端は第２ヘッダ部材１４２に接続されている。第３冷却パイプ１３３の一方端は第２ヘッダ部材１４２に接続されており、第３冷却パイプ１３３の他方端は最も上方に配置されたベンドパイプ１５に接続されている。複数のフィンパイプ１１ｂは互いにベンドパイプ１５により直列に接続されている。   One end of the first cooling pipe 131 is connected to the water inlet 10 a, and the other end of the first cooling pipe 131 is connected to the first header member 141. One end of the second cooling pipe 132 is connected to the first header member 141, and the other end of the second cooling pipe 132 is connected to the second header member 142. One end of the third cooling pipe 133 is connected to the second header member 142, and the other end of the third cooling pipe 133 is connected to the bend pipe 15 disposed uppermost. The plurality of fin pipes 11 b are connected to one another in series by the bend pipe 15.

図３および図４に示されるように、二次熱交換器２０は、入水部２０ａと、出湯部２０ｂと、熱交換部２１と、胴板（周壁部）２２と、ヘッダ部材２３とを備えている。熱交換部２１は、複数の第１管２１ａと、複数の第２管２１ｂとを含んでいる。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、ＳＵＳ（ステンレス鋼）製であってもよい。熱交換部２１は、複数の第１管２１ａおよび複数の第２管２１ｂの各々の外部を燃焼ガスが流れ、複数の第１管２１ａおよび複数の第２管２１ｂの内部を水が流れるように構成されている。   As shown in FIGS. 3 and 4, the secondary heat exchanger 20 includes a water inlet 20 a, a outlet 20 b, a heat exchanger 21, a shell (peripheral wall) 22, and a header member 23. ing. The heat exchange unit 21 includes a plurality of first pipes 21 a and a plurality of second pipes 21 b. Each of the plurality of first pipes 21a and the plurality of second pipes 21b may be made of SUS (stainless steel). The heat exchange unit 21 allows combustion gas to flow through the outside of each of the plurality of first pipes 21a and the plurality of second pipes 21b, and allows water to flow through the inside of the plurality of first pipes 21a and the plurality of second pipes 21b. It is configured.

複数の第１管２１ａおよび複数の第２管２１ｂの各々は、蛇行管（ミアンダ）である。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、第１方向Ｄ１に直交する第２方向Ｄ２に交互に折り返すように構成されている。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、第２方向Ｄ２が長手方向となるように構成されている。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、第１方向Ｄ１および第２方向Ｄ２の両方に直交する第３方向Ｄ３に互いに積層されている。   Each of the plurality of first pipes 21a and the plurality of second pipes 21b is a serpentine pipe (meander). Each of the plurality of first pipes 21a and the plurality of second pipes 21b is configured to be alternately folded in a second direction D2 orthogonal to the first direction D1. Each of the plurality of first pipes 21a and the plurality of second pipes 21b is configured such that the second direction D2 is a longitudinal direction. Each of the plurality of first pipes 21a and the plurality of second pipes 21b is stacked on one another in a third direction D3 orthogonal to both the first direction D1 and the second direction D2.

図４および図５に示されるように、胴板２２は、複数の第１管２１ａおよび複数の第２管２１ｂを取り囲んでいる。胴板２２は、正面部２２ａと、一対の側面部２２ｂと、背面部２２ｃとを含んでいる。正面部２２ａ、一対の側面部２２ｂおよび背面部２２ｃは四角の枠を構成している。胴板２２は上下に開口を有している。胴板２２は、上側の開口を通って胴板２２の内側へ燃焼ガスを給気可能である。胴板２２は、下側の開口を通って燃焼ガスを胴板２２の外側へ排気可能である。胴板２２は、本体部２２１と、膨出部２２２とを含んでいる。膨出部２２２は、本体部２２１から外側に向けて膨出している。膨出部２２２は、正面部２２ａに設けられている。膨出部２２２は、本体部２２１から背面部２２ｃと反対側に膨出している。   As shown in FIGS. 4 and 5, the body plate 22 surrounds the plurality of first pipes 21a and the plurality of second pipes 21b. The trunk plate 22 includes a front surface portion 22a, a pair of side surface portions 22b, and a back surface portion 22c. The front part 22a, the pair of side parts 22b, and the back part 22c constitute a square frame. The body plate 22 has openings at the top and bottom. The body plate 22 can supply combustion gas to the inside of the body plate 22 through the upper opening. The body plate 22 can exhaust the combustion gas to the outside of the body plate 22 through the lower opening. The body plate 22 includes a main body portion 221 and a bulging portion 222. The bulging portion 222 bulges outward from the main body portion 221. The bulging part 222 is provided in the front part 22a. The bulging portion 222 is bulging from the main body portion 221 to the opposite side to the back surface portion 22c.

ヘッダ部材２３は、第１ヘッダ部材２３１と、第２ヘッダ部材２３２とを含んでいる。第１ヘッダ部材２３１と第２ヘッダ部材２３２とは第１方向Ｄ１に並んで配置されている。第１ヘッダ部材２３１は第２ヘッダ部材２３２よりも一次熱交換器１０から離れて配置されている。第１ヘッダ部材２３１および第２ヘッダ部材２３２の各々は第２方向Ｄ２において胴板２２の両端部に配置されている。第１ヘッダ部材２３１および第２ヘッダ部材２３２の各々は第３方向Ｄ３に延びるように構成されている。入水部２０ａは第１ヘッダ部材２３１に接続されている。出湯部２０ｂは第２ヘッダ部材２３２に接続されている。   The header member 23 includes a first header member 231 and a second header member 232. The first header member 231 and the second header member 232 are arranged side by side in the first direction D1. The first header member 231 is disposed farther from the primary heat exchanger 10 than the second header member 232. Each of the first header member 231 and the second header member 232 is disposed at both ends of the body plate 22 in the second direction D2. Each of the first header member 231 and the second header member 232 is configured to extend in the third direction D3. The water inlet 20 a is connected to the first header member 231. The hot water discharge portion 20 b is connected to the second header member 232.

図５に示されるように、複数の第１管２１ａおよび複数の第２管２１ｂの各々は、複数の直線部２１ｃと、複数の湾曲部２１ｄとを有している。複数の直線部２１ｃの各々は、第２方向Ｄ２に延びている。複数の湾曲部２１ｄの各々は、第３方向Ｄ３に延びている。複数の湾曲部２１ｄは、複数の直線部２１ｃ同士を接続する。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、複数の直線部２１ｃと複数の湾曲部２１ｄとが直列に接続されることにより蛇行しながら鉛直方向（第１方向Ｄ１）に延びている。複数の第１管２１ａの各々および複数の第２管２１ｂの各々は鉛直方向（第１方向Ｄ１）に互いに重ならないように配置されている。複数の第１管２１ａおよび複数の第２管２１ｂの各々は、同一の形状に構成されていてもよい。   As shown in FIG. 5, each of the plurality of first pipes 21 a and the plurality of second pipes 21 b has a plurality of straight portions 21 c and a plurality of bending portions 21 d. Each of the plurality of straight portions 21c extends in the second direction D2. Each of the plurality of curved portions 21 d extends in the third direction D3. The plurality of curved portions 21 d connect the plurality of straight portions 21 c with each other. Each of the plurality of first pipes 21a and the plurality of second pipes 21b extends in the vertical direction (the first direction D1) while meandering by connecting the plurality of straight portions 21c and the plurality of bending portions 21d in series. ing. Each of the plurality of first pipes 21a and each of the plurality of second pipes 21b are arranged so as not to overlap each other in the vertical direction (first direction D1). Each of the plurality of first pipes 21a and the plurality of second pipes 21b may be configured in the same shape.

図５および図６に示されるように、複数の第１管２１ａおよび複数の第２管２１ｂの各々の一方端は第１ヘッダ部材２３１に接続されており、複数の第１管２１ａおよび複数の第２管２１ｂの各々の他方端は第２ヘッダ部材２３２に接続されている。複数の第１管２１ａおよび複数の第２管２１ｂの各々は第１ヘッダ部材２３１および第２ヘッダ部材２３２を介して並列に接続されている。   As shown in FIGS. 5 and 6, one end of each of the plurality of first pipes 21a and the plurality of second pipes 21b is connected to the first header member 231, and the plurality of first pipes 21a and the plurality of The other end of each of the second pipes 21 b is connected to the second header member 232. Each of the plurality of first pipes 21 a and the plurality of second pipes 21 b is connected in parallel via the first header member 231 and the second header member 232.

図６および図７に示されるように、熱交換装置２００が設置された状態において、複数の第１管２１ａおよび複数の第２管２１ｂの各々は、鉛直方向（第１方向Ｄ１）に直交する方向（第３方向Ｄ３）に並んでいる。つまり、熱交換装置２００が設置された状態において、第３方向Ｄ３は水平方向となる。複数の第１管２１ａの各々と複数の第２管２１ｂの各々とは第３方向Ｄ３に交互に並んで配置されている。熱交換装置２００が設置された状態において、複数の第２管２１ｂの各々は、複数の第１管２１ａの各々と鉛直方向（第１方向Ｄ１）に交差する方向（第３方向Ｄ３）に交互に隣り合っている。複数の第１管２１ａの各々と複数の第２管２１ｂの各々とは、第３方向Ｄ３に交互に接していてもよい。   As shown in FIGS. 6 and 7, in the state where the heat exchange device 200 is installed, each of the plurality of first pipes 21a and the plurality of second pipes 21b is orthogonal to the vertical direction (first direction D1). They are aligned in the direction (third direction D3). That is, in the state where the heat exchange device 200 is installed, the third direction D3 is horizontal. The plurality of first pipes 21a and the plurality of second pipes 21b are alternately arranged in the third direction D3. In the state where the heat exchange device 200 is installed, each of the plurality of second pipes 21b alternates in a direction (third direction D3) intersecting with each of the plurality of first pipes 21a in the vertical direction (first direction D1). Next to each other. Each of the plurality of first pipes 21 a and each of the plurality of second pipes 21 b may be alternately in contact with each other in the third direction D3.

複数の第１管２１ａの各々および複数の第２管２１ｂの各々は、図７中白抜き矢印で示される燃焼ガスに一様に接触する。したがって、複数の第１管２１ａの各々および複数の第２管２１ｂの各々に水に含まれるミネラル分が析出したスケール（缶石）が局所的に堆積することが抑制される。これにより、複数の第１管２１ａの各々および複数の第２管２１ｂの各々を流れる水の偏流が抑制される。   Each of the plurality of first pipes 21a and each of the plurality of second pipes 21b uniformly contact the combustion gas indicated by the white arrow in FIG. Therefore, it is suppressed that the scale (scale) which the mineral component contained in water deposited in each of several 1st pipe | tube 21a and each of several 2nd pipe | tube 21b is deposited locally. Thereby, the drift of the water flowing through each of the plurality of first pipes 21 a and each of the plurality of second pipes 21 b is suppressed.

複数の第１管２１ａの各々と複数の第２管２１ｂの各々とは第１方向Ｄ１に互いにずれて配置されている。複数の第１管２１ａの各々は複数の第２管２１ｂの各々よりも第１方向Ｄ１において一次熱交換器１０の近くに配置されている。図７中白抜き矢印で示される燃焼ガスに複数の第１管２１ａの各々は複数の第２管２１ｂの各々よりも先に接触する。   Each of the plurality of first pipes 21a and each of the plurality of second pipes 21b are disposed to be mutually shifted in the first direction D1. Each of the plurality of first pipes 21a is disposed closer to the primary heat exchanger 10 in the first direction D1 than each of the plurality of second pipes 21b. Each of the plurality of first pipes 21a comes in contact with the combustion gas indicated by the white arrow in FIG. 7 earlier than each of the plurality of second pipes 21b.

図８に示されるように、複数の第１管２１ａおよび複数の第２管２１ｂの各々は、本体部２２１によって取り囲まれた胴板２２の内部空間内と、膨出部２２２によって膨らんだ胴板２２の内部空間内とに配置されている。具体的には、複数の第１管２１ａおよび複数の第２管２１ｂの各々の複数の湾曲部２１ｄが膨出部２２２の内側に配置されている。複数の第１管２１ａおよび複数の第２管２１ｂの各々の複数の湾曲部２１ｄは、膨出部２２２の内側面との間に隙間を隔てて配置されている。膨出部２２２は、第１方向Ｄ１において第１ヘッダ部材２３１と第２ヘッダ部材２３２との間に配置されている。   As shown in FIG. 8, each of the plurality of first pipes 21 a and the plurality of second pipes 21 b is expanded in the interior space of the shell plate 22 surrounded by the main body portion 221 and by the bulging portion 222. It is disposed in the 22 interior space. Specifically, the plurality of curved portions 21 d of the plurality of first pipes 21 a and the plurality of second pipes 21 b are disposed inside the bulging portion 222. The plurality of curved portions 21 d of each of the plurality of first pipes 21 a and the plurality of second pipes 21 b are disposed with a gap between them and the inner side surface of the bulging portion 222. The bulging portion 222 is disposed between the first header member 231 and the second header member 232 in the first direction D1.

図８および図９に示されるように、複数の第２管２１ｂの各々は複数の第１管２１ａの各々よりも第１方向Ｄ１において一次熱交換器１０から離れて配置されている。熱交換装置２００が設置された状態において、複数の第２管２１ｂの各々の複数の直線部２１ｃの各々は、複数の第１管２１ａの各々の複数の直線部２１ｃの各々と鉛直方向（第１方向Ｄ１）にずれるように配置されている。複数の第１管２１ａの各々において複数の直線部２１ｃのうち鉛直方向（第１方向Ｄ１）に互いに隣り合う直線部２１ｃに挟まれる領域と鉛直方向（第１方向Ｄ１）と交差する交差方向（第３方向Ｄ３）に隣り合うように、複数の第２管２１ｂの各々における複数の直線部２１ｃのうち１つの直線部２１ｃが配置されている。   As shown in FIGS. 8 and 9, each of the plurality of second pipes 21b is disposed farther from the primary heat exchanger 10 in the first direction D1 than each of the plurality of first pipes 21a. In the state where the heat exchange device 200 is installed, each of the plurality of straight portions 21c of each of the plurality of second tubes 21b is perpendicular to each of the plurality of straight portions 21c of each of the plurality of first tubes 21a It is arranged to be displaced in one direction D1). In each of the plurality of first pipes 21a, of the plurality of straight portions 21c, a region sandwiched by the straight portions 21c adjacent to each other in the vertical direction (the first direction D1) and an intersecting direction (the first direction D1) One linear portion 21c of the plurality of linear portions 21c in each of the plurality of second pipes 21b is disposed adjacent to the third direction D3).

本実施の形態では、複数の第２管２１ｂの各々の複数の直線部２１ｃの各々は、鉛直方向（第１方向Ｄ１）において複数の第１管２１ａの各々の複数の直線部２１ｃの各々の間に配置されている。つまり、複数の第１管２１ａおよび複数の第２管２１ｂの各々の鉛直方向（第１方向Ｄ１）に交差する交差方向（第３方向Ｄ３）に隣り合う複数の直線部２１ｃの各々は、鉛直方向（第１方向Ｄ１）において重なり合わないように配置されている。また、複数のフィンパイプ１１ｂの各々は第２方向Ｄ２に延びている。複数のフィンパイプ１１ｂの各々は、複数の直線部２１ｃが延びる方向（第２方向Ｄ２）に沿って延びている。   In the present embodiment, each of the plurality of straight portions 21c of each of the plurality of second pipes 21b is the same as each of the plurality of straight portions 21c of each of the plurality of first pipes 21a in the vertical direction (first direction D1). It is arranged between. That is, each of the plurality of linear portions 21c adjacent to the intersecting direction (third direction D3) intersecting the perpendicular direction (first direction D1) of each of the plurality of first pipes 21a and the plurality of second pipes 21b is perpendicular It is arranged so as not to overlap in the direction (first direction D1). Each of the plurality of fin pipes 11b extends in the second direction D2. Each of the plurality of fin pipes 11b extends along the direction in which the plurality of straight portions 21c extend (second direction D2).

次に、本実施の形態の作用効果について説明する。
図８に示されるように、本実施の形態の熱交換装置２００によれば、複数の第１管２１ａおよび複数の第２管２１ｂの各々は、複数の直線部２１ｃと複数の湾曲部２１ｄとが直列に接続されることにより蛇行しながら鉛直方向（第１方向Ｄ１）に延びている。したがって、複数の第１管２１ａおよび複数の第２管２１ｂの各々から水を排出するときに、水が重力により上から下に流れるため、排水性を向上させることができる。 Next, the operation and effect of the present embodiment will be described.
As shown in FIG. 8, according to the heat exchange device 200 of the present embodiment, each of the plurality of first pipes 21 a and the plurality of second pipes 21 b includes a plurality of straight portions 21 c and a plurality of curved portions 21 d. Are extended in the vertical direction (first direction D1) while meandering by being connected in series. Therefore, when water is discharged from each of the plurality of first pipes 21a and the plurality of second pipes 21b, the water flows from the top to the bottom by gravity, and the drainage property can be improved.

また、図９に示されるように、熱交換装置２００が設置された状態において一次熱交換器１０に鉛直方向（第１方向Ｄ１）に重なるように二次熱交換器２０が配置されているため、図９中矢印Ａで示される燃焼ガスは鉛直方向（第１方向Ｄ１）に二次熱交換器２０へ流入する。複数の第１管２１ａと複数の第２管２１ｂとが鉛直方向（第１方向Ｄ１）に交差する方向（第３方向Ｄ３）に配置されているため、複数の第１管２１ａの各々および複数の第２管２１ｂの各々はそれぞれ燃焼ガスに均一に接触する。したがって、複数の第１管２１ａの各々および複数の第２管２１ｂの各々にそれぞれスケールが均一に堆積する。このため、複数の第１管２１ａおよび複数の第２管２１ｂのそれぞれにおいて水の分配バランスが悪くなることを抑制することができる。すなわち、水の分配バランスを向上させることができる。よって、熱交換装置２００の故障を抑制することができる。   Further, as shown in FIG. 9, since the secondary heat exchanger 20 is disposed so as to overlap the primary heat exchanger 10 in the vertical direction (first direction D1) in the state where the heat exchange device 200 is installed. The combustion gas shown by arrow A in FIG. 9 flows into the secondary heat exchanger 20 in the vertical direction (first direction D1). Since the plurality of first pipes 21a and the plurality of second pipes 21b are disposed in a direction (third direction D3) intersecting the vertical direction (first direction D1), each of the plurality of first pipes 21a and a plurality of Each of the second pipes 21b uniformly contacts the combustion gas. Therefore, the scale is uniformly deposited on each of the plurality of first tubes 21 a and each of the plurality of second tubes 21 b. For this reason, it can suppress that distribution balance of water worsens in each of a plurality of 1st pipes 21a and a plurality of 2nd pipes 21b. That is, the distribution balance of water can be improved. Therefore, the failure of the heat exchange device 200 can be suppressed.

さらに、複数の第２管２１ｂの各々の複数の直線部２１ｃの各々は、複数の第１管２１ａの各々の複数の直線部２１ｃの各々と鉛直方向（第１方向Ｄ１）にずれるように配置されている。このため、複数の第１管２１ａの各々の複数の直線部２１ｃの各々と複数の第２管２１ｂの各々の複数の直線部２１ｃの各々との間を燃焼ガスが鉛直方向（第１方向Ｄ１）に流れるときの流路抵抗を低減させることができる。これにより、送風装置３２の容量を減らすことができるため、送風装置３２の消費電力およびサイズを減らすことができる。   Furthermore, each of the plurality of straight portions 21c of each of the plurality of second pipes 21b is arranged so as to be displaced in the vertical direction (first direction D1) with each of the plurality of straight portions 21c of each of the plurality of first pipes 21a. It is done. Therefore, the combustion gas flows in the vertical direction (the first direction D1) between each of the plurality of straight portions 21c of each of the plurality of first pipes 21a and each of the plurality of straight portions 21c of each of the plurality of second pipes 21b. Flow path resistance can be reduced. Thereby, since the capacity of the blower 32 can be reduced, the power consumption and the size of the blower 32 can be reduced.

また、複数の第２管２１ｂの各々の複数の直線部２１ｃの各々は、鉛直方向（第１方向Ｄ１）において複数の第１管２１ａの各々の複数の直線部２１ｃの各々の間に配置されている。このため、複数の第１管２１ａの各々と複数の第２管２１ｂの各々とが第３方向Ｄ３において接していても複数の第１管２１ａの各々の複数の直線部２１ｃの各々と複数の第２管２１ｂの各々の複数の直線部２１ｃの各々との間を通して燃焼ガスを鉛直方向（第１方向Ｄ１）に流すことができる。   Further, each of the plurality of linear portions 21c of each of the plurality of second pipes 21b is disposed between each of the plurality of linear portions 21c of each of the plurality of first pipes 21a in the vertical direction (first direction D1). ing. Therefore, even if each of the plurality of first pipes 21a is in contact with each of the plurality of second pipes 21b in the third direction D3, each of the plurality of straight portions 21c of each of the plurality of first pipes 21a and the plurality of The combustion gas can flow in the vertical direction (first direction D1) through the space between the second pipe 21b and each of the plurality of straight portions 21c.

図８に示されるように、本実施の形態の熱交換装置２００において、複数のフィンパイプ１１ｂの各々は、複数の直線部２１ｃが延びる方向（第２方向Ｄ２）に沿って延びている。このため、複数のフィンパイプ１１ｂの各々の間を流れる燃焼ガスの流れに沿って複数の第１管２１ａの各々および複数の第２管２１ｂの各々の間を燃焼ガスが流れる。したがって、一次熱交換器１０から二次熱交換器２０に燃焼ガスが鉛直方向（第１方向Ｄ１）に流れるときの流路抵抗を低減させることができる。   As shown in FIG. 8, in the heat exchange device 200 of the present embodiment, each of the plurality of fin pipes 11b extends along the direction in which the plurality of straight portions 21c extend (second direction D2). Therefore, the combustion gas flows between each of the plurality of first pipes 21a and each of the plurality of second pipes 21b along the flow of the combustion gas flowing between each of the plurality of fin pipes 11b. Therefore, the flow path resistance can be reduced when the combustion gas flows from the primary heat exchanger 10 to the secondary heat exchanger 20 in the vertical direction (first direction D1).

図８に示すように、本実施の形態の熱交換装置２００において、複数の第１管２１ａおよび複数の第２管２１ｂは、本体部２２１によって取り囲まれた胴板２２の内部空間内と、膨出部２２２によって膨らんだ胴板２２の内部空間内とに配置されている。このため、本体部２２１を膨出部２２２よりも小さくすることができる。また、複数の第１管２１ａおよび複数の第２管２１ｂが膨出部２２２によって膨らんだ胴板２２の内部空間内に配置されているため、膨出部２２２が無い場合に比べて複数の第１管２１ａおよび複数の第２管２１ｂの伝熱面積を増やすことができる。膨出部２２２において、図８中矢印Ａで示される燃焼ガスと、複数の第１管２１ａおよび複数の第２管２１ｂとの間で熱交換が行われることにより熱交換量を向上させることができる。したがって、本体部２２１を小型化しつつ複数の第１管２１ａおよび複数の第２管２１ｂの熱交換効率を向上させることができる。   As shown in FIG. 8, in the heat exchange device 200 of the present embodiment, the plurality of first pipes 21 a and the plurality of second pipes 21 b expand in the internal space of the body plate 22 surrounded by the main body portion 221 and It is disposed in the inner space of the body plate 22 expanded by the projecting portion 222. Therefore, the main body portion 221 can be made smaller than the bulging portion 222. In addition, since the plurality of first pipes 21 a and the plurality of second pipes 21 b are disposed in the internal space of the body plate 22 inflated by the bulging portion 222, a plurality of first tubes 21 a and a plurality of second tubes 21 b are compared with the case where the bulging portion 222 is absent. The heat transfer area of the one pipe 21a and the plurality of second pipes 21b can be increased. In the bulging portion 222, the heat exchange amount is improved by performing heat exchange between the combustion gas indicated by the arrow A in FIG. 8 and the plurality of first pipes 21a and the plurality of second pipes 21b. it can. Therefore, the heat exchange efficiency of the plurality of first pipes 21 a and the plurality of second pipes 21 b can be improved while the main body portion 221 is miniaturized.

図１に示されるように、本実施の形態の熱源機１００は、上記の熱交換装置２００と、バーナ３０とを備えている。バーナ３０は、一次熱交換器１０および二次熱交換器２０の順に燃焼ガスを供給可能に構成されている。本実施の形態の熱源機１００によれば、排水性を向上させることができ、かつ水の分配バランスを改善させることができる熱交換装置２００を備えた熱源機１００を提供することができる。   As shown in FIG. 1, the heat source unit 100 according to the present embodiment includes the above-described heat exchange device 200 and a burner 30. The burner 30 is configured to be able to supply combustion gas in the order of the primary heat exchanger 10 and the secondary heat exchanger 20. According to the heat source unit 100 of the present embodiment, it is possible to provide the heat source unit 100 provided with the heat exchange device 200 capable of improving drainage and improving the distribution balance of water.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all the modifications within the meaning and scope equivalent to the claims.

１０ 一次熱交換器、１１，２１ 熱交換部、１１ａ フィン、１１ｂ フィンパイプ、１２，２２ 胴板、１３ 胴パイプ部、１４，２３ ヘッダ部材、１５ ベンドパイプ、２０ 二次熱交換器、２１ａ 第１管、２１ｂ 第２管、２１ｃ 直線部、２１ｄ 湾曲部２１ｄ、３０ バーナ、１００ 熱源機、２００ 熱交換装置、２２１ 本体部、２２２ 膨出部。   DESCRIPTION OF SYMBOLS 10 Primary heat exchanger, 11, 21 heat exchange part, 11a fin, 11b finned pipe, 12, 22 trunk plate, 13 trunked pipe part, 14, 23 header member, 15 bend pipe, 20 secondary heat exchanger, 21a No. 1 tube, 21b second tube, 21c straight portion, 21d curved portion 21d, 30 burners, 100 heat source unit, 200 heat exchange device, 221 main body portion, 222 bulging portion.

Claims (4)

燃焼ガスの顕熱および潜熱を回収可能な熱交換装置であって、
前記燃焼ガスの前記顕熱を回収するための一次熱交換器と、
前記熱交換装置が設置された状態において前記一次熱交換器に鉛直方向に重なるように配置され、かつ前記燃焼ガスの前記潜熱を回収するための二次熱交換器とを備え、
前記二次熱交換器は、複数の第１管と、各々が前記複数の第１管の各々と前記鉛直方向に交差する方向に交互に隣り合う複数の第２管とを含み、
前記複数の第１管および前記複数の第２管の各々は、複数の直線部と、前記複数の直線部同士を接続する複数の湾曲部とを有し、前記複数の直線部と前記複数の湾曲部とが直列に接続されることにより蛇行しながら前記鉛直方向に延びており、
前記複数の第２管の各々の前記複数の直線部の各々は、前記複数の第１管の各々の前記複数の直線部の各々と前記鉛直方向にずれるように配置されている、熱交換装置。 A heat exchanger capable of recovering sensible heat and latent heat of combustion gas, comprising:
A primary heat exchanger for recovering the sensible heat of the combustion gas;
And a secondary heat exchanger arranged to vertically overlap the primary heat exchanger in a state in which the heat exchange device is installed, and for recovering the latent heat of the combustion gas;
The secondary heat exchanger includes a plurality of first pipes, and a plurality of second pipes that are alternately adjacent to each other in the direction perpendicular to the vertical direction with each of the plurality of first pipes,
Each of the plurality of first pipes and the plurality of second pipes has a plurality of straight portions and a plurality of curved portions connecting the plurality of straight portions, and the plurality of straight portions and the plurality of straight portions By being connected in series with the curved portion, it extends in the vertical direction while meandering,
A heat exchange device, wherein each of the plurality of straight portions of each of the plurality of second tubes is arranged to be vertically displaced from each of the plurality of straight portions of each of the plurality of first tubes . 前記一次熱交換器は、複数のフィンパイプを含み、
前記複数のフィンパイプの各々は、前記複数の直線部が延びる方向に沿って延びている、請求項１に記載の熱交換装置。 The primary heat exchanger includes a plurality of fin pipes,
The heat exchange device according to claim 1, wherein each of the plurality of fin pipes extends along a direction in which the plurality of straight portions extend. 前記二次熱交換器は、前記複数の第１管および前記複数の第２管を取り囲む周壁部を含み、
前記周壁部は、本体部と、前記本体部から外側に向けて膨出する膨出部とを含み、
前記複数の第１管および前記複数の第２管の各々は、前記本体部によって取り囲まれた前記周壁部の内部空間内と、前記膨出部によって膨らんだ前記周壁部の前記内部空間内とに配置されている、請求項１または２に記載の熱交換装置。 The secondary heat exchanger includes a circumferential wall surrounding the plurality of first pipes and the plurality of second pipes,
The peripheral wall portion includes a main body portion and a bulging portion that bulges outward from the main body portion,
Each of the plurality of first pipes and the plurality of second pipes is provided in the internal space of the peripheral wall portion surrounded by the main body portion and in the internal space of the peripheral wall portion expanded by the bulging portion. The heat exchange device according to claim 1 or 2, which is arranged. 請求項１から３のいずれか１項に記載の前記熱交換装置と、
前記一次熱交換器に対して前記二次熱交換器と反対側に配置されたバーナとを備え、
前記バーナは、前記一次熱交換器および前記二次熱交換器の順に前記燃焼ガスを供給可能に構成されている、熱源機。 The heat exchange device according to any one of claims 1 to 3;
A burner disposed opposite to the secondary heat exchanger with respect to the primary heat exchanger;
The heat source unit, wherein the burner is configured to be able to supply the combustion gas in the order of the primary heat exchanger and the secondary heat exchanger.
JP2017248716A 2017-12-26 2017-12-26 Heat exchanger and heat source machine Active JP7052341B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017248716A JP7052341B2 (en) 2017-12-26 2017-12-26 Heat exchanger and heat source machine
CN201811441144.5A CN109959169B (en) 2017-12-26 2018-11-29 Heat exchange device and heat source machine
US16/208,585 US20190195563A1 (en) 2017-12-26 2018-12-04 Heat exchange device and heat source machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017248716A JP7052341B2 (en) 2017-12-26 2017-12-26 Heat exchanger and heat source machine

Publications (2)

Publication Number Publication Date
JP2019113280A true JP2019113280A (en) 2019-07-11
JP7052341B2 JP7052341B2 (en) 2022-04-12

Family

ID=66951019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017248716A Active JP7052341B2 (en) 2017-12-26 2017-12-26 Heat exchanger and heat source machine

Country Status (3)

Country Link
US (1) US20190195563A1 (en)
JP (1) JP7052341B2 (en)
CN (1) CN109959169B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11454421B2 (en) 2019-12-24 2022-09-27 Noritz Corporation Heat exchanger and water heating apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7135325B2 (en) * 2018-01-24 2022-09-13 株式会社ノーリツ Heat exchange device and heat source machine
JP7215156B2 (en) * 2018-12-26 2023-01-31 株式会社ノーリツ heat exchanger and water heater
USD916257S1 (en) * 2019-08-22 2021-04-13 Noritz Corporation Heat exchanger for water heater
USD904587S1 (en) * 2019-08-22 2020-12-08 Noritz Corporation Heat exchanger for water heater
USD904589S1 (en) * 2019-08-22 2020-12-08 Noritz Corporation Heat exchanger for water heater
USD904588S1 (en) * 2019-08-22 2020-12-08 Noritz Corporation Heat exchanger for water heater
CN110756607A (en) * 2019-11-18 2020-02-07 贵州航天南海科技有限责任公司 Internal circulation water cooling device for wire drawing machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105467A (en) * 2004-10-04 2006-04-20 Noritz Corp Hot water supply device
JP2006343090A (en) * 2005-05-10 2006-12-21 Rinnai Corp One-can type composite heat source machine
JP2008121959A (en) * 2006-11-10 2008-05-29 Noritz Corp Heat exchanger and water heating apparatus
US20100170452A1 (en) * 2007-07-04 2010-07-08 Darren William Ford Water heating apparatus, especially for pools
JP2011174688A (en) * 2010-02-25 2011-09-08 Chofu Seisakusho Co Ltd Combustion device
CN106123340A (en) * 2016-05-11 2016-11-16 中山普瑞玛实业有限公司 Equal-resistance flow-equalizing preheating backwater condensing heat exchanger
JP2017211173A (en) * 2016-05-24 2017-11-30 リンナイ株式会社 Exhaust duct

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656544A (en) * 1970-08-05 1972-04-18 Ingersoll Rand Co Heat exchanger
US4513587A (en) * 1981-09-14 1985-04-30 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co., Kg Evaporator particularly suitable for air conditioners in automotive vehicles
JPH08136058A (en) * 1994-11-14 1996-05-31 Gastar Corp Combustion equipment having heat exchanger for recovering latent heat
JP2003161595A (en) * 2001-11-20 2003-06-06 Paloma Ind Ltd Latent heat recovery heat exchanger
US6820685B1 (en) * 2004-02-26 2004-11-23 Baltimore Aircoil Company, Inc. Densified heat transfer tube bundle
US7681536B2 (en) * 2007-03-22 2010-03-23 Patrick A. Kaupp Low maintenance fluid heater and method of firing same
CN201434510Y (en) * 2009-06-01 2010-03-31 广东万和新电气股份有限公司 Sensible heat exchanger of fuel gas water heater
US9709341B2 (en) * 2010-04-26 2017-07-18 Rinnai Corporation Heat exchanger
US10094589B2 (en) * 2014-07-25 2018-10-09 Noritz Corporation Fin-and-tube type heat exchanger and water heater including the same
KR101676993B1 (en) * 2016-05-03 2016-11-16 (주)귀뚜라미 U-bend pipe type heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105467A (en) * 2004-10-04 2006-04-20 Noritz Corp Hot water supply device
JP2006343090A (en) * 2005-05-10 2006-12-21 Rinnai Corp One-can type composite heat source machine
JP2008121959A (en) * 2006-11-10 2008-05-29 Noritz Corp Heat exchanger and water heating apparatus
US20100170452A1 (en) * 2007-07-04 2010-07-08 Darren William Ford Water heating apparatus, especially for pools
JP2011174688A (en) * 2010-02-25 2011-09-08 Chofu Seisakusho Co Ltd Combustion device
CN106123340A (en) * 2016-05-11 2016-11-16 中山普瑞玛实业有限公司 Equal-resistance flow-equalizing preheating backwater condensing heat exchanger
JP2017211173A (en) * 2016-05-24 2017-11-30 リンナイ株式会社 Exhaust duct

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11454421B2 (en) 2019-12-24 2022-09-27 Noritz Corporation Heat exchanger and water heating apparatus

Also Published As

Publication number Publication date
CN109959169A (en) 2019-07-02
JP7052341B2 (en) 2022-04-12
CN109959169B (en) 2022-04-12
US20190195563A1 (en) 2019-06-27

Similar Documents

Publication Publication Date Title
JP2019113280A (en) Heat exchange device and heat source machine
JP7135325B2 (en) Heat exchange device and heat source machine
JP6763951B2 (en) Condensin type combustion equipment
JP5771519B2 (en) Latent heat exchanger and hot water supply device
US11287158B2 (en) Heat exchanger and hot water apparatus
CN106537059A (en) Fin-and-tube type heat exchanger, and hot water supply device equipped with same
JP5182570B2 (en) Water heater
JP7357208B2 (en) Heat exchanger and water heating equipment equipped with the same
JP6848418B2 (en) Heat exchanger and water heater
KR20100083549A (en) Separation type heat exchanger
JP4857987B2 (en) Heat exchanger and water heater
JP2010007968A (en) Hot water supply device
JP6264722B2 (en) Water heater
JP2019128132A (en) Heat exchange device and heat source machine
JP4728056B2 (en) Hot water equipment
JP2021134971A (en) Heat exchanger and water heater having the same
JP5234349B2 (en) Heat exchanger and water heater
KR100993035B1 (en) Wrinkle pipe and heat exchanger of including the same
JP6630132B2 (en) Heat exchangers and water heaters
JP7356024B2 (en) Heat exchanger and hot water equipment
JP4565316B2 (en) Heat source equipment
JP2005274044A (en) Heat source device
JP7248275B2 (en) Heat exchangers and combined water heaters
JP7298877B2 (en) Water heater
JP2023087370A (en) Heat exchanger and water heating device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20201127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20211228

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220104

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220218

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220301

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220314

R150 Certificate of patent or registration of utility model

Ref document number: 7052341

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150