JP5190511B2 - boiler - Google Patents

boiler Download PDF

Info

Publication number
JP5190511B2
JP5190511B2 JP2010514576A JP2010514576A JP5190511B2 JP 5190511 B2 JP5190511 B2 JP 5190511B2 JP 2010514576 A JP2010514576 A JP 2010514576A JP 2010514576 A JP2010514576 A JP 2010514576A JP 5190511 B2 JP5190511 B2 JP 5190511B2
Authority
JP
Japan
Prior art keywords
water
chamber
boiler
water pipe
group
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.)
Expired - Fee Related
Application number
JP2010514576A
Other languages
Japanese (ja)
Other versions
JP2010532457A (en
Inventor
グンウ ノ
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.)
NOR, Jae Eun
Original Assignee
NOR, Jae Eun
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 NOR, Jae Eun filed Critical NOR, Jae Eun
Publication of JP2010532457A publication Critical patent/JP2010532457A/en
Application granted granted Critical
Publication of JP5190511B2 publication Critical patent/JP5190511B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10Water tubes; Accessories therefor
    • F22B37/12Forms of water tubes, e.g. of varying cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24Water 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
    • F24H1/26Water 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 forming an integral body
    • F24H1/28Water 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 forming an integral body including one or more furnace or fire tubes
    • F24H1/285Water 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 forming an integral body including one or more furnace or fire tubes with the fire tubes arranged alongside the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B15/00Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/22Drums; Headers; Accessories therefor
    • F22B37/221Covers for drums, collectors, manholes or the like
    • F22B37/223Boiler plugs, e.g. for handholes

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Incineration Of Waste (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Description

本発明は暖房用温水ボイラーまたは産業用ボイラーであって、水管を平たく形成して、その配列を横にした温水ボイラーに関するものである。   The present invention relates to a hot water boiler for heating or an industrial boiler, and relates to a hot water boiler in which a water pipe is formed flat and the arrangement thereof is horizontal.

従来の水管ボイラーには、縦に水管が配列されたものと、横に水管が配列されたものがある。水管は主に、円形管或いは四角形管になっており、水管の断面積が大きいので、限られた燃焼室の領域空間に水管を稠密に配置するのが難しかった。   Conventional water tube boilers include one in which water tubes are arranged vertically and one in which water tubes are arranged horizontally. The water pipe is mainly a circular pipe or a square pipe, and since the cross-sectional area of the water pipe is large, it is difficult to densely arrange the water pipes in the limited space of the combustion chamber.

従って、受熱作用をする水管の表面積が全体的に狭く、相対的に水管内の水の量が大きい。これによって、水管の表面で受熱されても、水の潜熱によって水管の中心部に迅速に熱の伝導が行われがたく、ボイラーの温度上昇に要する時間が長引くのみならず、水管の受熱作用は受熱面積に限られるため、与えられた燃焼空間を有するボイラーの熱の利用率が低く、煙突へ多くの熱量が損失される問題点があった。   Therefore, the surface area of the water pipe that receives heat is generally small, and the amount of water in the water pipe is relatively large. As a result, even if the heat is received on the surface of the water pipe, heat is not conducted quickly to the center of the water pipe due to the latent heat of the water. Since it is limited to the heat receiving area, the heat utilization rate of the boiler having the given combustion space is low, and there is a problem that a large amount of heat is lost to the chimney.

更に、排煙路が左右ジグザグに形成されたボイラーは、各水管が邪魔になって、ボイラーの内部の掃除が難しい。従って、ボイラーの使用中、水管の表面にカーボン等のほこり物質が堆積して、熱の伝導が低下し、ボイラーの性能がだんだん低下する。特に、エネルギーの費用が高価である時代において、熱の利用効率がより高く、掃除が簡便なボイラーが必要となる。   Furthermore, in the boiler in which the flue gas passage is formed in a right and left zigzag, it is difficult to clean the inside of the boiler because each water pipe becomes an obstacle. Therefore, during the use of the boiler, dust substances such as carbon are deposited on the surface of the water tube, the heat conduction is lowered, and the performance of the boiler is gradually lowered. In particular, in an era when the cost of energy is high, a boiler that has higher heat utilization efficiency and is easy to clean is required.

本発明の目的は、ボイラー内の水を迅速に加熱可能な平たい横配列水管を備えたボイラーを提供するにある。本発明のボイラーには、狭い幅と、相対的に広い幅を持つ長方形の面を有する多数の平たい横配列水管が燃焼室領域内の限られた空間に、稠密に上下左右に配置され、各水管のそれぞれに水路がジグザクに連通される多段の水管群を形成し、水管間の狭い隙間からなる排煙路が格子状の直線状に配列されている。   It is an object of the present invention to provide a boiler having a flat horizontal array of water tubes that can quickly heat the water in the boiler. In the boiler of the present invention, a large number of flat laterally arranged water tubes having a narrow width and a relatively wide rectangular surface are densely arranged vertically and horizontally in a limited space in the combustion chamber region. Each of the water pipes forms a multi-stage water pipe group in which the water paths communicate with the zigzag, and the flue gas paths including narrow gaps between the water pipes are arranged in a lattice-like straight line.

本発明の他の目的は、長方形の面を有する平たい横配列水管の配置により改善された熱エネルギーの高熱利用率が得られる高性能のボイラーを提供するにある。本発明のボイラーの平たい横配列水管は、幅が狭いので、燃焼室の領域内に、より稠密に配置するのが可能になり、与えられた空間において、受熱面積の増大が可能になり、排煙路の幅が狭いため、燃焼ガスと水管との接触が良好になり、受熱作用が向上され、排煙路は幅の狭い格子状の直線状に分布されて排出抵抗が少なく、燃焼作用は良好で、ボイラーの熱利用率がより向上する。   Another object of the present invention is to provide a high performance boiler capable of obtaining a high heat utilization rate of improved heat energy by the arrangement of flat horizontal water pipes having a rectangular surface. The flat horizontal water pipe of the boiler of the present invention has a narrow width, so that it can be arranged more densely in the region of the combustion chamber, and the heat receiving area can be increased in a given space. Because the flue is narrow, the contact between the combustion gas and the water pipe is good, the heat receiving action is improved, the flue gas is distributed in a narrow grid-like straight line, the discharge resistance is low, and the combustion action is It is good and the heat utilization rate of the boiler is further improved.

本発明のもう一つの目的は、上下、左右に横に配列された水管の狭い隙間からなる格子状の排煙路の配設によって、ボイラーの内部の掃除が容易になり、ガス・埃などの堆積によるボイラーの性能低下を防止して、暖房用または産業用に有用に使用可能な新規なボイ
ラーを提供するにある。
Another object of the present invention is to facilitate the cleaning of the inside of the boiler by arranging a grid-like smoke exhaust path composed of narrow gaps of water pipes arranged horizontally up and down, left and right, such as gas and dust. It is an object of the present invention to provide a new boiler that can be usefully used for heating or industrial purposes by preventing a decrease in the performance of the boiler due to accumulation.

上記目的を達成するために、本発明のボイラーは、その胴体の内周面全体に沿って配され、内壁と胴体との間に形成された水室;前記水室により囲まれた空間内の同一水平面内に互いに平行に配され、且つ上下方向に多段に配された断面が長方形をなす多数の水管;前記多数の水管の下方に配され、最下段の水管群の一端部下方に焚口を有する燃焼室;多段に配された水管群の前後両端面に、各水管の内部水路と連通し、且つ上下左右に配された水管の間を連通して格子状に形成された排煙路の水管端部間に形成される排煙出入口を密閉する隔板及び上記水室の上記内壁と前記隔板との間に形成され、上下に隣接する各水管群の間をジグザグ状に連通させる内部水室を備え、前記燃焼室領域の天板部と前記ボイラー胴体の天板部との間の上部水路内に排煙室が形成され、前記燃焼室領域の天板部に形成された排煙口とボイラー胴体の天板部に設けられた煙突とが前記排煙室と連通してなるIn order to achieve the above object, a boiler according to the present invention is provided along a whole inner peripheral surface of a fuselage, and is a water chamber formed between an inner wall and the fuselage; in a space surrounded by the water chamber. A number of water pipes arranged in parallel to each other in the same horizontal plane and having a multi-stage cross section in the vertical direction, each having a rectangular cross section; arranged below the number of water pipes, and having a mouth opening below one end portion of the lowermost water pipe group Combustion chamber having a flue gas passage formed in a lattice shape, communicating with the internal water passages of each water pipe on the front and rear end faces of the water pipe group arranged in multiple stages and between the water pipes arranged vertically and horizontally A partition plate that seals the flue gas inlet / outlet formed between the water pipe ends, and an interior that is formed between the inner wall of the water chamber and the partition plate and communicates in a zigzag manner between adjacent water pipe groups in the vertical direction. An upper portion between the top plate portion of the combustion chamber region and the top plate portion of the boiler fuselage Flue gas chamber is formed in the road, the a chimney provided on the top plate portion of the flue outlet and boiler body formed in the top plate of the combustion chamber region is in communication with the smoke chamber.

好適な態様によれば、最上段の前記水管群を除く前記水管群は、前記水管の広い幅が側面となり、狭い幅が上面になるようにして稠密に配列され、最上段の水管群は、水管の広い幅が上面となり、狭い幅が側面になるようにして配列されている。According to a preferred aspect, the water tube group excluding the uppermost water tube group is densely arranged such that the wide width of the water tube is a side surface and the narrow width is an upper surface, and the uppermost water tube group is The water tubes are arranged so that the wide width is the upper surface and the narrow width is the side surface.

また好ましくは、最上段に配された上記水管群の前端部が前記水室と連通し、前記水室の一部が最下段の水管群の前端部と連通している。更に好ましくは、ボイラー胴体の天板部に給水口を有し、前記燃焼室領域の底面及びボイラー胴体の底面を貫通するドレインが設けられているとよい。Preferably, a front end portion of the water pipe group arranged at the uppermost stage communicates with the water chamber, and a part of the water chamber communicates with a front end portion of the lowermost water pipe group. More preferably, the top of the boiler body has a water supply port, and a drain penetrating the bottom surface of the combustion chamber region and the bottom surface of the boiler body may be provided.

本発明のボイラーは、上記のように構成されているので、バーナーから噴射された燃料(オイル或いはガス)が燃焼室で燃焼され、排煙路を通じて上昇し、排煙室に一旦集まった後、煙突へ排出される過程において、狭い排煙路を通過する高熱の火炎と燃焼ガスが各水管群の横配列水管の表面と良好に接触し、強力な受熱作用が行われる。
この際、横配列水管の受熱面積が増大されている一方、水管内の水の量は少ないので、水は急速に加熱され、内部圧力が上昇する。従って、下段の水管群から上段の水管群を通じて順次に加熱された水が速やかに循環されて水室に流入し、水室の水は、迅速に下段の水管に流入してまた上段の水管群へ循環する過程を通じて、ボイラーの水は高温に加熱される。
Since the boiler of the present invention is configured as described above, the fuel (oil or gas) injected from the burner is burned in the combustion chamber, rises through the smoke exhaust path, and once gathers in the smoke exhaust chamber. In the process of being discharged into the chimney, the high-temperature flame and the combustion gas passing through the narrow flue path make good contact with the surface of the horizontally arranged water tubes of each water tube group, and a powerful heat receiving action is performed.
At this time, while the heat receiving area of the horizontal array water pipe is increased, the amount of water in the water pipe is small, so that the water is rapidly heated and the internal pressure rises. Accordingly, the water heated in sequence from the lower water tube group through the upper water tube group is quickly circulated and flows into the water chamber, and the water in the water chamber quickly flows into the lower water tube group and the upper water tube group. Through the circulation process, the boiler water is heated to a high temperature.

本発明のボイラーは、水室で囲まれた燃焼室領域の限られた空間に、多数の平たい横配列水管を上下・左右に稠密に内部水室に連通されるように配置されて、上下多段で水管群を構成しているので、横配列水管の受熱面積が増大する一方、水管内の水の量は少ないので、水管の受熱作用により、水管内の水が迅速に加熱される。
なお、配列された横配列水管間の狭い隙間によって排煙路が形成されているので、排煙路を通過する高熱の火炎または燃焼ガスが水管の表面に近接して良好に接触し、強力な受熱作用が行われ、ボイラーの熱利用率がより向上される。
なお、排煙路は狭くても、屈曲のない格子状の直線で分布されているので、燃焼ガスの排出抵抗が少なく、燃焼作用は良好で、更に、ボイラーの内部掃除が容易である。従って、本発明のボイラーは、高性能のボイラーとして有用に使用することができる。
The boiler of the present invention is arranged in a limited space in a combustion chamber region surrounded by a water chamber so that a large number of flat horizontally arranged water pipes are communicated densely in the vertical and horizontal directions to the internal water chamber. Since the water pipe group is configured, the heat receiving area of the horizontally arranged water pipes is increased, while the amount of water in the water pipes is small, so that the water in the water pipes is rapidly heated by the heat receiving action of the water pipes.
In addition, since the flue gas path is formed by the narrow gap between the arranged horizontal water pipes, the high-temperature flame or combustion gas passing through the flue gas line is in close contact with the surface of the water pipe and is strong. A heat receiving action is performed, and the heat utilization rate of the boiler is further improved.
Even if the flue gas passage is narrow, it is distributed in a lattice-like straight line without bending, so that the combustion gas discharge resistance is low, the combustion action is good, and the internal cleaning of the boiler is easy. Therefore, the boiler of the present invention can be usefully used as a high performance boiler.

排出される燃焼ガスは、排煙室に到達する前に、殆どの熱が回収され、排煙室に流入した燃焼ガスは、煙突から排出される前にその進行が停滞する間、上部水室によって最終的に残熱が回収される。この時、煙突へ排出されるガスの温度は100 〜200 ℃を超えないので、水管ボイラーとしては、熱回収率が非常に高いのである。水室の上下に給水管と還水Before the exhaust gas reaches the smoke chamber, most of the heat is recovered, and the combustion gas flowing into the smoke chamber is in the upper water chamber while its progress stagnate before being exhausted from the chimney. Finally, residual heat is recovered. At this time, since the temperature of the gas discharged to the chimney does not exceed 100 to 200 ° C., the heat recovery rate is very high as a water tube boiler. Water supply pipe and return water above and below the water chamber
管が形成され、燃焼室の底面にドレインを形成する場合には、排煙路を通じてボイラー内部の掃除が可能であり、仮に水管群が汚物とか埃に覆われたときなど、随時に掃除ができ、埃などによるボイラーの性能の低下を防ぐことができる。When a tube is formed and a drain is formed on the bottom of the combustion chamber, the boiler interior can be cleaned through the flue gas passage, and can be cleaned at any time, such as when the water tube group is covered with dirt or dust. It is possible to prevent a decrease in boiler performance due to dust and the like.

本発明のボイラーの一部切欠の正面斜視図である。It is a front perspective view of a partially cutout of the boiler of the present invention. 本発明のボイラーの正面(バーナーが設置された側)から見た断面図である。It is sectional drawing seen from the front (side in which the burner was installed) of the boiler of this invention. 本発明のボイラーの側面から見た断面図である。It is sectional drawing seen from the side of the boiler of this invention.

発明の実施のための最良の形態BEST MODE FOR CARRYING OUT THE INVENTION

本発明のボイラーには、胴体の内周面に形成された水室が、燃焼室の周囲に形成された下部水室と区分されていて通孔を介して相互連通されている。   In the boiler of the present invention, a water chamber formed on the inner peripheral surface of the fuselage is separated from a lower water chamber formed around the combustion chamber and communicated with each other through a through hole.

また、バーナーが設置される焚口のある方を正面として、ボイラーの前後両側面の水室の内側に、内部水室が横配列水管と管接される隔板で区分されて設置されている。   Also, with the side with the mouth where the burner is installed as the front, the inner water chamber is divided and installed inside the water chamber on both front and rear sides of the boiler by a partition plate connected to the horizontal array water pipe.

前記横配列水管は、狭い横幅と、相対的に広い縦幅を持つ長方形の面を有しているので、ボイラーの燃焼室領域内の限られた空間に、稠密に上下・左右に配置されるのが可能になっている。なお、前記横配列水管の両端は内部水室に連結されて上下多段の水管群を形成している。 The horizontal water tubes, a narrow width, since it has the cross-sectional surface of the rectangle having a relatively large vertical width in the limited space of the combustion chamber in the region of the boiler, are densely arranged on the vertical and horizontal Is possible. Note that both ends of the horizontal array water pipe are connected to an internal water chamber to form a multi-stage water pipe group.

従って、前記横配列水管の受熱面積は全体的に増大する一方、同水管内の水量は相対的に少ないので、水管の受熱作用により、水管内の水がより迅速に加熱される。   Therefore, while the heat receiving area of the horizontal water pipes increases as a whole, the amount of water in the water pipes is relatively small, so that the water in the water pipes is heated more quickly by the heat receiving action of the water pipes.

各水管群の水路をジグザグに屈曲されて連通されるように、水管群の両端部側の内部水室に誘導板が交互に異なる高さで水路を遮断するようにして設置されている。これにより、下段の水管群と上段の水管群間を、水室の水が上下に循環しながら加熱される。   Guide plates are alternately installed at different heights in the internal water chambers on both ends of the water tube group so that the water channels of each water tube group are bent and communicated in a zigzag manner. As a result, the water in the water chamber is heated up and down between the lower water tube group and the upper water tube group.

排煙路は、上下・左右に配列された横配列水管間の狭い隙間によって構成されており、水管群が占有した空間で格子状の直線で分布されている。排煙路は狭いので、横配列水管の受熱作用が良好に行われるのみならず、排煙路は、屈曲のない直線で分布されているので、排出抵抗が減少し、燃焼作用が向上する。燃焼室の空間の中間部の両側には、燃焼ガスを中央部に誘導する誘導板がそれぞれ形成されている。   The flue gas path is formed by narrow gaps between horizontally arranged water pipes arranged vertically and horizontally, and is distributed in a lattice-like straight line in the space occupied by the water pipe group. Since the flue gas passage is narrow, not only the heat receiving action of the laterally arranged water pipes is performed well, but the flue gas passage is distributed in a straight line without bending, so that the discharge resistance is reduced and the combustion action is improved. Guiding plates for guiding the combustion gas to the center are formed on both sides of the middle portion of the space of the combustion chamber.

上部水室には、最終的に燃焼ガスの残熱を回収するための、排煙路と連通する排煙室が形成されている。   In the upper water chamber, there is formed a smoke exhaust chamber communicating with the smoke exhaust path for finally recovering the residual heat of the combustion gas.

水室の上下には、給水管と還水管がそれぞれ形成されており、燃焼室の底面には、掃除水が排出されるドレインが形成されている。   A water supply pipe and a return water pipe are respectively formed above and below the water chamber, and a drain through which cleaning water is discharged is formed on the bottom surface of the combustion chamber.

本発明によるボイラーは上記のように構成されているので、バーナーから噴射された燃料(オイル或いはガス)が燃焼室で燃焼され、排煙路を通じて上昇し、排煙室に一旦集結した後、煙突から排出される過程で、狭い排煙路を通過する高熱の火炎と燃焼ガスが各水管群の横配列水管の表面と良好に接触して、強力な受熱作用が行われる。この際、横配列水管の受熱面積が増大されている反面、同水管に入っている水の量は少ないので、水は急速に加熱されて、内部圧力が上昇する。従って、下段の水管群から上段の水管群を通じて、順次に加熱された水が迅速に循環して水室に流入され、水室の水は迅速に下段の水管に流入されて上段の水管群へと循環する過程で、ボイラーの水は高温に加熱される。 Since the boiler according to the present invention is configured as described above, the fuel (oil or gas) injected from the burner is combusted in the combustion chamber, rises through the smoke exhaust passage, and once collects in the smoke exhaust chamber. In the process of being discharged from, the high-temperature flame and the combustion gas passing through the narrow flue passage make good contact with the surface of the horizontal array water pipe of each water pipe group, and a powerful heat receiving action is performed. At this time, while the heat receiving area of the horizontal water pipe is increased, the amount of water contained in the water pipe is small, so that the water is rapidly heated and the internal pressure rises. Accordingly, the heated water is quickly circulated through the upper water tube group from the lower water tube group and flows into the water chamber, and the water in the water chamber quickly flows into the lower water tube to the upper water tube group. In the process of circulating, the boiler water is heated to a high temperature .

燃焼ガスは、誘導板によって、排煙路の中央部に誘導され、排煙路は狭くても屈曲が無く、燃焼室領域に全体的に均一に格子状に分布されているので、排出抵抗が少なく、燃焼作用が良好に行われるので、水管群で受熱作用が良好に持続される。排出される燃焼ガスは、排煙室に到達する前に、殆どの熱が回収され、排煙室に流入した燃焼ガスは、煙突から排出される前にその進行が停滞する間、上部水室によって最終的に残熱が回収される。この時、煙突へ排出されるガスの温度は100 〜200 ℃を超えないので、水管ボイラーとしては、熱回収率が非常に高いのである。   The combustion gas is guided to the central part of the flue gas path by the guide plate, and even if the flue gas path is narrow, it is not bent and is distributed uniformly in a lattice pattern throughout the combustion chamber area, so that the exhaust resistance is low. Since there is little combustion action, the heat receiving action is sustained well in the water tube group. Before the exhaust gas reaches the smoke chamber, most of the heat is recovered, and the combustion gas flowing into the smoke chamber is in the upper water chamber while its progress stagnate before being exhausted from the chimney. Finally, residual heat is recovered. At this time, since the temperature of the gas discharged to the chimney does not exceed 100 to 200 ° C., the heat recovery rate is very high as a water tube boiler.

なお、排煙路を通じてボイラーの掃除が容易に出来るので、水管群上に堆積したカーボンとか埃などを随時に掃除して、ボイラーの性能の低下を防ぐことが出来る。   In addition, since the boiler can be easily cleaned through the flue gas passage, the performance of the boiler can be prevented from being deteriorated by cleaning carbon or dust deposited on the water tube group at any time.

上述のように、本発明のボイラーは、熱利用率が非常に向上されて、暖房或いは産業用に有用に使用することが出来る。   As described above, the boiler of the present invention has a greatly improved heat utilization rate and can be usefully used for heating or industrial purposes.

本発明の実施例を図面によって詳細に説明すれば次のとおりである。
図1に示すように、本発明のボイラーは、ボイラーの胴体(1 )の内部の壁に沿って形成された水室(2 );横配列水管(3 )に連結される隔板(4a)を備え、ボイラーの水室(2 )の前後両側面の内側に形成された内部水室(2a);狭い幅 (a)と、相対的に広い幅
(b)を持つ長方形の面でなって増大された受熱面を有する平たい横配列水管(3 );多数の平たい長方形の横配列水管が、稠密に上下左右に前記内部水室(2a)に連通されるように配置され、上下多段である、前記内部水室に連通される水管群 (3A) ;前記水管群 (3A) の水路 (3r) がジグザグに屈曲されるように、交互に異なる高さで水路(3r)を遮断する、水管群(3A)の両端部側の内部水室 (2a) に備えられた誘導板 (4c) ;前記横配列水管間の狭い隙間により、燃焼室(5 )領域空間に、格子状の直線状に分布された排煙路 (5a) ;及び上部水室(2b)内に形成された最終的に残留燃焼熱を回収するための、排煙路(5a)に連通される排煙室(5c)が結合されて構成されている。
An embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the boiler according to the present invention includes a water chamber (2) formed along an inner wall of a boiler body (1); a partition plate (4a) connected to a laterally arranged water pipe (3). An internal water chamber (2a) formed inside the front and rear sides of the boiler water chamber (2); a narrow width (a) and a relatively wide width
(b) a flat horizontal array of water pipes (3) having a rectangular surface with an increased heat-receiving surface; a large number of flat rectangular horizontal arrays of water pipes communicating closely with the internal water chamber (2a) vertically and horizontally The water pipe group (3A) communicated with the internal water chamber, which is arranged in a multistage manner, and the water channel (3r) of the water pipe group (3A) have different heights so as to be bent zigzag. The guide plates (4c) provided in the internal water chambers (2a) on both end sides of the water pipe group (3A) that block the water channel (3r); the combustion chambers (5 ) In the area space, the flue gas passage (5a) distributed in a grid-like linear pattern; and the flue gas passage (5a) for finally recovering the residual combustion heat formed in the upper water chamber (2b) ) Is connected to the smoke exhaust chamber (5c).

図2及び図3に示されているように、本発明によるボイラーは、水室(2 )が、同ボイラーの胴体(1 )の内周面全体に亘って外壁(符合無し)と内壁(4 )間に形成されており、燃焼室(5 )の周囲の前記水室(2 )の下部側には通孔(2h)で連通されるように区分された下部水室(2c)が形成されており、水室(2 )の上部には給水管(p )(p’) が、下部水室(2c)には還水管(K )がそれぞれ管接されている。   As shown in FIGS. 2 and 3, the boiler according to the present invention has a water chamber (2) having an outer wall (no sign) and an inner wall (4) over the entire inner peripheral surface of the body (1) of the boiler. ), And a lower water chamber (2c) is formed on the lower side of the water chamber (2) around the combustion chamber (5) so as to communicate with the through hole (2h). A water supply pipe (p) (p ') is connected to the upper part of the water chamber (2), and a return water pipe (K) is connected to the lower water chamber (2c).

バーナー(B) が設置される燃焼室(5 )の焚口の方から見て前後両側面の水室(2 )の中間部には、横配列水管を管接するための隔板(4a)が形成されていて、前記水室(2 )と内部水室(2a)が水室(2 )の内壁(4 )によって区分形成されており、前記水室(2 )と内部水室(2a)は下部水室(2c)の通孔(2h)を通じて連通される。   A partition plate (4a) is formed in the middle of the water chamber (2) on both the front and rear sides when viewed from the inlet of the combustion chamber (5) where the burner (B) is installed. The water chamber (2) and the internal water chamber (2a) are separated by an inner wall (4) of the water chamber (2), and the water chamber (2) and the internal water chamber (2a) are formed in the lower part. It communicates through the water chamber (2c) through hole (2h).

横配列水管(3 )は、狭い幅 (a)と、広い幅 (b)及び所定の長さ(l )を持つ長方形の平たい水管でなっている。このような構成で成る横配列水管(3 )は、広い幅 (b)が側面となり、狭い幅 (a)が上面になるように立てられ、上下・左右一定の狭い間隔で稠密に配列される。配列された各水管(3 )の前後両端部は、前記内部水室(2a)に連通されるように、隔板(4a)に溶接され、溶接された部分の隔板(4a)が貫通されて通水可能に管接されている。横列に配列された各横配列水管(3 )の集合体を水管群 (3A) と称する。最上端部の水管群(3An )は水管(3 )の広い幅 (b)の方が上面になるように伏せて配列され、水管壁を形成し、同水管群(3An) の一端部(3e)は水室(2 )の上部に連通されており、下端水管群(3A)の一端部(3e)は水室(2 )の下部に連通される。各水管群 (3A) の水路
(3r) がジグザグに屈曲されて連通されるようにするため、水管群(3A)の両端部側の内部水室 (2a) には誘導板 (4c) が横配列水管(3 )の上面に連結されて水室(2 )の内壁(
4 )に溶接され、交互に異なる高さで水管群 (3A) の水路(3r)を遮断する。
The horizontal array water pipe (3) is a rectangular flat water pipe having a narrow width (a), a wide width (b), and a predetermined length (l). The horizontally arranged water pipe (3) constructed in this way is erected so that the wide width (b) is the side and the narrow width (a) is the upper surface, and the water pipes are densely arranged at a constant vertical and horizontal spacing. . The front and rear ends of each arranged water pipe (3) are welded to the partition plate (4a) so as to communicate with the internal water chamber (2a), and the welded portion of the partition plate (4a) is penetrated. It is connected so that water can pass through. An assembly of the horizontal water pipes (3) arranged in a row is referred to as a water pipe group (3A). The uppermost water tube group (3An) is arranged so that the wide width (b) of the water tube (3) is on the upper surface, forming a water tube wall, and one end of the water tube group (3An) ( 3e) communicates with the upper part of the water chamber (2), and one end (3e) of the lower end water pipe group (3A) communicates with the lower part of the water chamber (2). Channel for each water tube group (3A)
In order for the (3r) to be bent and communicated in a zigzag manner, the guide plates (4c) are placed on the upper surface of the horizontally arranged water tubes (3) in the internal water chambers (2a) on both ends of the water tube group (3A). Connected inner wall of water chamber (2) (
4) Welded to block the water channel (3r) of the water tube group (3A) at alternately different heights.

横配列水管(3 )間の狭い隙間でなる排煙路 (5a) は、燃焼室(5 )領域空間を占有している水管群 (3A) 間を通じて上部側排煙室(5c)に至るまで、格子状の直線状に均等に分布されている。延焼室の中間の内部には、公知の案内板(4d)が形成され、燃焼ガスを中央部の排煙路へ誘導するようになっている。上部水室(2b)には、最終的に残留燃焼熱を回収するための、排煙路(5a)の排煙口(5b)と煙突(5d)に連通される排煙室(5c)が形成されており、燃焼室(5 )の底面には掃除水が排出されるドレイン(d )が形成されている。   The flue gas passage (5a) consisting of a narrow gap between the horizontal water pipes (3) reaches the upper smoke chamber (5c) through the water pipe group (3A) occupying the combustion chamber (5) area space. Are evenly distributed in a lattice-like straight line. A known guide plate (4d) is formed in the middle of the fire spreading chamber to guide the combustion gas to the flue gas passage at the center. In the upper water chamber (2b), there is a smoke exhaust chamber (5c) communicating with the smoke exhaust (5b) of the smoke exhaust passage (5a) and the chimney (5d) to finally recover the residual combustion heat. The drain (d) from which the cleaning water is discharged is formed on the bottom surface of the combustion chamber (5).

このように構成された本発明の作用を次のように説明する。
バーナー(B) から噴射された燃料(オイル或いはガス)が燃焼室(5) で燃焼され、排煙路(5a)を通じて上昇し、排煙口(5b)を経て排煙室(5c)に一旦集結した後、煙突(5d)から排出される。この時、燃焼室(5 )領域の限られた空間に平らな横配列水管(3 )が稠密な密度で配列され、水管群(3A)を形成しているので、各横配列水管(3 )間の狭い隙間で成っている排煙路(5a)を通過する高熱の燃焼ガスと火炎が横配列水管(3 )の表面と直接良好に接触して、横配列水管(3 )の表面で強力な受熱作用が行われる。この際、横配列水管(3 )の受熱面積が増大されている反面、同水管(3 )に入っている水の量は少ないので、水(w) は急速に加熱されて、水管(3 )の内部圧力が上昇する。従って、水路(3r)を通じて下段の水管群(3A)から上段の水管群(3An) を通過しながら加熱された水が迅速に循環して水室(2 )の上部に流入される。水室(2 )の下部では、水が迅速に下段の水管群に流入されるので、高い水温が保たれる。加熱された水は給水管(p, p ')を通じて外部に供給され、冷たくなった水は環水管(K) を介して水室(2 )に戻ってくる。燃焼ガスは、誘導板(4d)によって、排煙路(5a)の中央部に誘導される。排煙路(5a)は狭くても格子状の直線状で均等に分布されているので、排出抵抗が少なく、燃焼作用が良好に行われる。なお、排煙室(5c)は排煙路 (5a) に比べて広い空間で成っているので、排煙室(5c)に流入された燃焼ガスは排気が遅れ、その間上部水室(2b)によって最終的に燃焼ガスに含まれている残熱が回収される。従って、煙突(5d)へ排出される熱エネルギーの損失が著しく減少される。
The operation of the present invention thus configured will be described as follows.
The fuel (oil or gas) injected from the burner (B) is burned in the combustion chamber (5), rises through the smoke exhaust passage (5a), passes through the smoke exhaust port (5b), and temporarily enters the smoke exhaust chamber (5c). After gathering, it is discharged from the chimney (5d). At this time, flat horizontal water pipes (3) are arranged at a dense density in the limited space of the combustion chamber (5) region, forming a water pipe group (3A), so each horizontal water pipe (3) High-temperature combustion gas and flame passing through the flue gas passage (5a) formed by the narrow gap between them are in good direct contact with the surface of the horizontal array water pipe (3) and strong on the surface of the horizontal array water pipe (3) The heat receiving action is performed. At this time, while the heat receiving area of the horizontal water pipe (3) is increased, the amount of water contained in the water pipe (3) is small, so the water (w) is heated rapidly and the water pipe (3) The internal pressure increases. Accordingly, the water heated through the water channel (3r) from the lower water tube group (3A) through the upper water tube group (3An) is circulated rapidly and flows into the upper part of the water chamber (2). In the lower part of the water chamber (2), the water quickly flows into the lower water tube group, so that a high water temperature is maintained. The heated water is supplied to the outside through the water supply pipes (p, p ′), and the cooled water returns to the water chamber (2) through the ring water pipe (K). The combustion gas is guided to the center of the flue gas path (5a) by the guide plate (4d). Even if the flue gas passage (5a) is narrow, it is distributed evenly in a lattice-like straight line, so that the discharge resistance is small and the combustion action is performed well. Note that the smoke exhaust chamber (5c) has a larger space than the flue gas passage (5a), so that the combustion gas that flowed into the smoke exhaust chamber (5c) is delayed in exhaust, while the upper water chamber (2b) As a result, the residual heat contained in the combustion gas is finally recovered. Therefore, the loss of thermal energy discharged to the chimney (5d) is significantly reduced.

なお、排煙路 (5a) は、格子状の直線で分布されているので、燃焼室(5 )に水の噴射機を入れて水を噴射させ、最上部の水管群(3An) に至るまで、汚れ、埃などの掃除が可能である。従って、水管(3 )に付いた汚れ、埃を掃除することによって、受熱作用が良好に維持され、ボイラーの性能が向上する。掃除に使われた水はドレイン(d )を通じて下方に排出されるので、ボイラーを清潔に掃除することが出来る。   Since the flue gas channel (5a) is distributed in a grid-like straight line, water is injected into the combustion chamber (5) and water is injected until it reaches the uppermost water tube group (3An). Cleaning of dirt, dust, etc. is possible. Therefore, by cleaning dirt and dust attached to the water pipe (3), the heat receiving action is maintained well and the performance of the boiler is improved. Since the water used for cleaning is discharged downward through the drain (d), the boiler can be cleaned cleanly.

本発明のボイラーは、水室に囲まれた燃焼室の限られた空間に、多数の平たい横配列水管を上下・左右に稠密に内部水室に連通されるように配置しているので、横配列水管の受熱面積は増大する反面、横配列水管の中に入っている水の量は少なく、横配列水管の受熱作用によって、横配列水管の水が迅速に加熱される。   In the boiler of the present invention, a large number of flat horizontally arranged water pipes are arranged in a limited space in the combustion chamber surrounded by the water chamber so as to communicate with the inner water chamber densely in the vertical and horizontal directions. While the heat receiving area of the array water pipe is increased, the amount of water contained in the horizontal array water pipe is small, and the water in the horizontal array water pipe is rapidly heated by the heat receiving action of the horizontal array water pipe.

なお、配列された横配列水管間の狭い隙間によって排煙路が形成されているので、排煙路を通過する高熱の火炎と燃焼ガスが横配列水管の表面に近接して良好な接触を行い、強力な受熱作用をもたらし、ボイラーの熱エネルギー利用率をより向上させる。   In addition, since the flue gas path is formed by a narrow gap between the arranged horizontal pipes, the high-temperature flame passing through the flue pipe and the combustion gas are in close contact with the surface of the horizontal pipe and make good contact. , Bring about a strong heat receiving effect, and further improve the thermal energy utilization rate of the boiler.

なお、排出される燃焼ガスは、排煙室に到達する前に殆どの熱が回収されるが、排煙室に流入した燃焼ガスは、煙突へ排出される前に、進行が送れる際に上部水室によって最終的に残熱が回収される。この時、煙突から排出される燃焼ガスの温度は100 〜200 ℃を超えないので、水管ボイラーとしては熱エネルギーの回収率が非常に高いのである。   The exhausted combustion gas recovers most of the heat before it reaches the smoke chamber. However, the combustion gas that has flowed into the smoke exhaust chamber is The residual heat is finally recovered by the water chamber. At this time, since the temperature of the combustion gas discharged from the chimney does not exceed 100 to 200 ° C., the recovery rate of heat energy is very high as a water tube boiler.

なお、排煙路を通じてボイラー内部の掃除が容易である。従って、水管群が汚物とか埃に覆われていれば、随時に掃除をして、埃などによるボイラーの性能の低下を防ぐことが出来る。   It is easy to clean the inside of the boiler through the smoke passage. Therefore, if the water tube group is covered with filth or dust, it can be cleaned at any time to prevent deterioration of the boiler performance due to dust or the like.

上述のように、本発明によるボイラーは、熱の利用率が非常に向上され、暖房または様々の産業用に有用に使用することが出来る。   As described above, the boiler according to the present invention has a greatly improved heat utilization rate and can be usefully used for heating or various industries.

1:ボイラー胴体、 2:水室、 2a :内部水室
3:横配列水管、 3A :水管群、 3r :水路
4:内壁、 4a :隔板、 4c :誘導板、 4d :案内板
5:燃焼室、 5a :排煙路、 5b :排煙口、 5c:排煙室
1: Boiler body, 2: Water chamber, 2a: Internal water chamber 3: Horizontally arranged water pipe, 3A: Water pipe group, 3r: Water channel 4: Inner wall, 4a: Separator plate, 4c: Guide plate, 4d: Guide plate 5: Combustion Chamber, 5a: Smoke channel, 5b: Smoke exit, 5c: Smoke chamber

Claims (4)

ボイラー胴体(1) の内周面全体に沿って配され、内壁(4) と胴体(1) との間に形成された水室(2) ;
前記水室(2) により囲まれた空間内の同一水平面内に互いに平行に配され、且つ上下方向に多段に配された断面が長方形をなす多数の水管(3) ;
前記多数の水管(3) の下方に配され、最下段の水管群(3A)の一端部下方に焚口を有する燃焼室(5) ;
多段に配された水管群(3A,3An)の前後両端面に、各水管の内部水路と連通し、且つ上下左右に配された水管(3) の間を連通して格子状に形成された排煙路(5a)の水管端部間に形成される排煙出入口を密閉する隔板(4a);及び
上記水室(2) の上記内壁(4) と前記隔板(4a)との間に形成され、上下に隣接する各水管群(3A,3An)の間をジグザグ状に連通させる内部水室(2a)を備え、
前記燃焼室(5) 領域の天板部と前記ボイラー胴体(1) の天板部との間の上部水路(2b)内に排煙室(5c)が形成され、前記燃焼室(5) 領域の天板部に形成された排煙口(5b)とボイラー胴体(1) の天板部に設けられた煙突(5d)とが前記排煙室(5c)と連通してなる、ボイラー。
A water chamber (2) disposed along the entire inner peripheral surface of the boiler body (1) and formed between the inner wall (4) and the body (1);
A number of water pipes (3) arranged in parallel to each other in the same horizontal plane in the space surrounded by the water chamber (2) and having a multi-stage cross section in the vertical direction forming a rectangle;
A combustion chamber (5) disposed below the plurality of water pipes (3) and having a spout below one end of the lowermost water pipe group (3A);
Formed in a grid pattern on the front and rear end faces of the water pipe group (3A, 3An) arranged in multiple stages, communicating with the internal water channel of each water pipe, and communicating between the water pipes (3) arranged vertically and horizontally A separator (4a) for sealing the flue gas inlet / outlet formed between the water pipe ends of the flue gas passage (5a); and
An internal water chamber (3a, 3An) formed between the inner wall (4) of the water chamber (2) and the partition plate (4a) and communicating in a zigzag manner between adjacent water pipe groups (3A, 3An). 2a)
A smoke exhaust chamber (5c) is formed in the upper water channel (2b) between the top plate portion of the combustion chamber (5) region and the top plate portion of the boiler body (1), and the combustion chamber (5) region A boiler in which a smoke exhaust port (5b) formed in the top plate portion of the boiler and a chimney (5d) provided in the top plate portion of the boiler body (1) communicate with the smoke exhaust chamber (5c) .
最上段の前記水管群(3An) を除く前記水管群(3A)は、前記水管(3) の広い幅 (b)が側面となり、狭い幅(a) が上面になるようにして稠密に配列され、最上段の水管群(3An) は、水管(3) の広い幅(b) が上面となり、狭い幅(a) が側面になるようにして配列されてなる、請求項1記載のボイラー。The water tube group, excluding top of the water tube group and (3AN) (3A), the front Kisui tube (3) of width (b) is a side, densely as narrow (a) is an upper surface The boiler according to claim 1 , wherein the uppermost water tube group (3An) is arranged such that a wide width (b) of the water tube (3 ) is an upper surface and a narrow width (a) is a side surface. . 最上段に配された上記水管群(3An) の前端部が前記水室(2) と連通し、The front end portion of the water pipe group (3An) arranged at the uppermost stage communicates with the water chamber (2),
前記水室(2) の一部が最下段の水管群(3A)の前端部と連通してなる請求項1又は2に記載のボイラー。The boiler according to claim 1 or 2, wherein a part of the water chamber (2) communicates with a front end portion of the lowermost water tube group (3A).
ボイラー胴体(1) の天板部に給水口を有し、前記燃焼室(5) 領域の底面及びボイラー胴The top of the boiler body (1) has a water inlet, and the bottom of the combustion chamber (5) region and the boiler body
体(1) の底面を貫通するドレイン(d) が設けられてなる、請求項1〜3のいずれかに記載のボイラー。The boiler according to any one of claims 1 to 3, wherein a drain (d) penetrating the bottom surface of the body (1) is provided.
JP2010514576A 2007-07-02 2007-07-02 boiler Expired - Fee Related JP5190511B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2007/003191 WO2009005177A1 (en) 2007-07-02 2007-07-02 Boiler with flat horizontal tubes

Publications (2)

Publication Number Publication Date
JP2010532457A JP2010532457A (en) 2010-10-07
JP5190511B2 true JP5190511B2 (en) 2013-04-24

Family

ID=40226206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010514576A Expired - Fee Related JP5190511B2 (en) 2007-07-02 2007-07-02 boiler

Country Status (5)

Country Link
US (2) US20100139578A1 (en)
JP (1) JP5190511B2 (en)
CN (1) CN101688684B (en)
DE (1) DE112007003550B4 (en)
WO (1) WO2009005177A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI489071B (en) * 2012-12-03 2015-06-21 Grand Mate Co Ltd Water heater
JP6449190B2 (en) * 2016-03-24 2019-01-09 株式会社ユタカ技研 Gas water heater
CN106016371A (en) * 2016-07-12 2016-10-12 济南诚毅弘远工贸有限公司 Heating furnace
CN108240701A (en) * 2016-12-26 2018-07-03 美的集团股份有限公司 Combustion gas liquid heating and gas heater
CN108302757A (en) * 2018-03-23 2018-07-20 安徽汇展热交换***股份有限公司 New-energy automobile auxiliary water heating device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1728017A (en) * 1926-12-31 1929-09-10 Szarka August Water heater
US1780576A (en) * 1927-04-07 1930-11-04 Barton H Briney Heating boiler
US1886387A (en) * 1928-02-27 1932-11-08 Andrew J Gallaher Boiler
US1921532A (en) * 1932-03-05 1933-08-08 Joseph H Long Heater
US1925299A (en) * 1932-10-03 1933-09-05 John B Brown Water heater
US2122369A (en) * 1937-07-15 1938-06-28 Halloran Company Boiler
US3408989A (en) * 1967-04-24 1968-11-05 John F. Baier Gas fired hot water boiler construction
JPS5118655B2 (en) * 1973-08-29 1976-06-11
JPS5538453A (en) * 1978-09-11 1980-03-17 Yoshihei Hara High steam vapor generator
US4334518A (en) * 1980-05-28 1982-06-15 Sol-Fire Inc. Heating system
US4393814A (en) * 1981-04-08 1983-07-19 Raymond Sievert Multi-fueled boiler
US4738310A (en) * 1985-08-26 1988-04-19 United Mcgill Corporation Heat exchanger
JPH0547923Y2 (en) * 1986-07-31 1993-12-17
KR880020014U (en) * 1987-04-07 1988-11-29
JPH0692803B2 (en) * 1988-04-26 1994-11-16 株式会社ヒラカワガイダム boiler
JPH02272254A (en) * 1989-04-13 1990-11-07 Takagi Ind Co Ltd Heat exchanger for instantaneous water heater with hot water storage part
KR960004764Y1 (en) * 1993-09-25 1996-06-08 노군우 Boiler for room heating
EP0809772B1 (en) * 1995-02-23 2000-09-20 Sang Kyeong Kim Water heater
JPH09257208A (en) * 1996-03-25 1997-09-30 Ebara Res Co Ltd Cylindrical once-through boiler

Also Published As

Publication number Publication date
DE112007003550B4 (en) 2016-09-29
DE112007003550T5 (en) 2010-06-17
WO2009005177A1 (en) 2009-01-08
CN101688684B (en) 2012-10-10
US20140299074A1 (en) 2014-10-09
CN101688684A (en) 2010-03-31
US20100139578A1 (en) 2010-06-10
JP2010532457A (en) 2010-10-07

Similar Documents

Publication Publication Date Title
US9709341B2 (en) Heat exchanger
JP5190511B2 (en) boiler
CN101782270A (en) Condensing gas boiler
JP5182570B2 (en) Water heater
JP4026023B2 (en) boiler
JP2010007968A (en) Hot water supply device
JP2010139110A (en) Latent heat recovery type heat exchanger
JP5619511B2 (en) Indirect hot air generator
KR101207959B1 (en) Firewood boiler for perfect combustion
JP3217062U (en) Multi-tube once-through boiler
CN201615608U (en) Condensing gas-fired boiler
RU2625367C1 (en) Hot-water boiler
JP3702026B2 (en) High temperature regenerator
KR100756605B1 (en) Boiler with flat horizontal tubes
JP5457577B1 (en) Exhaust heat boiler unit and exhaust heat boiler
JP2019190781A (en) Multi-pipe once-through boiler
JP4405652B2 (en) Boiler with horizontal heat absorption fins in the combustion gas passage
KR101380369B1 (en) Boiler with a detachable type heat exchanger pipe
RU195711U1 (en) Water tube boiler
RU2061932C1 (en) Heating boiler
RU2287748C1 (en) Modular water heating boiler
RU2187040C1 (en) Fire-flue boiler
JP2005164119A (en) Boiler with heat absorbing fin intersecting combustion gas flow
JP2004069284A (en) Exhaust gas boiler
KR200294804Y1 (en) Vertical boiler

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120426

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120515

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120725

TRDD Decision of grant or rejection written
RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20121228

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130108

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130128

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160201

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5190511

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees