JPS63113297A - Exhaust gas waste heat recovering system - Google Patents
Exhaust gas waste heat recovering systemInfo
- Publication number
- JPS63113297A JPS63113297A JP25949886A JP25949886A JPS63113297A JP S63113297 A JPS63113297 A JP S63113297A JP 25949886 A JP25949886 A JP 25949886A JP 25949886 A JP25949886 A JP 25949886A JP S63113297 A JPS63113297 A JP S63113297A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- exhaust gas
- resistant
- heat transfer
- unit
- 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.)
- Pending
Links
- 239000007789 gas Substances 0.000 title description 21
- 239000002918 waste heat Substances 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
- 229910052802 copper Inorganic materials 0.000 claims 2
- 239000010949 copper Substances 0.000 claims 2
- 238000004140 cleaning Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 8
- 239000002912 waste gas Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000003779 heat-resistant material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
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
- 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
- F28D7/08—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 the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—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 the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—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 the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
- F28D7/087—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 the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
-
- 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
-
- 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
- F28D7/08—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 the conduits being otherwise bent, e.g. in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は燃焼した排ガスから熱回収を行なう装置に間す
るものであり、特にＣ重油などの重油焚きボイラーにお
ける燃焼排ガスの余熱を利用して、ボイラー給水を予熱
する排熱回収装置に関するものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a device that recovers heat from combusted exhaust gas, and in particular, it is applied to a device that recovers heat from combusted exhaust gas, and in particular, it is applied to a device that recovers heat from combusted exhaust gas. , relates to an exhaust heat recovery device for preheating boiler feed water.
「従来の技術」
従来のこの種の排熱回収装置を第６図を参照して説明す
ると、１は横方向の筒状のケーシングで、このケーシン
グｌは矢印イで示す水平方向に流れる排ガスの煙道ａの
途中に設置される。ケーシングｌは四弗化エチレン重合
体シート（商標名「テフロンシート」）のような耐熱・
耐酸性シートで内張すされ、このケーシグ１には下方よ
り上方へ数段蛇行状に連通した伝熱管２が複数列配列さ
れ、各伝熱管２はケーシング１の側板３に支承されてい
る。最下位の各伝熱管２は図示されていない給水管に連
通され、最上位の各伝熱管２は図示されていない出水管
に連通されている。ケーシング１の底板１１の中央部に
はドレン排出口１２が設けられ、ケーシング１内の最上
部には、伝熱管２に排ガス中のダストが付着した場合に
水洗するための散水管１３（クリーニング装置）が設け
られている。``Prior Art'' A conventional exhaust heat recovery device of this type will be explained with reference to FIG. 6. 1 is a horizontal cylindrical casing, and this casing l is used to collect exhaust gas flowing in the horizontal direction as shown by arrow A. It is installed in the middle of flue a. The casing l is made of heat-resistant material such as tetrafluoroethylene polymer sheet (trade name "Teflon sheet").
The casing 1 is lined with an acid-resistant sheet, and a plurality of rows of heat transfer tubes 2 are arranged in the casing 1 in a meandering manner in several stages from the bottom to the top, and each heat transfer tube 2 is supported by a side plate 3 of the casing 1. Each heat exchanger tube 2 at the lowest level is connected to a water supply pipe (not shown), and each heat exchanger tube 2 at the highest level is connected to a water outlet pipe (not shown). A drain outlet 12 is provided in the center of the bottom plate 11 of the casing 1, and a water spray pipe 13 (a cleaning device ) is provided.
「発明が解決しようとする問題点」
前記の従来の装置は、第一に、伝熱管２に付着したダス
ト除去手段として水洗式のクリーニング装置を用いた場
合には、水洗水の流れ方向に対し排ガス流が直交するた
め、排ガス流の流入側特に流入側の下方部分（第６図に
おいてケーシング１の左下方部分）において伝熱管２の
ダストの除去が不充分となり、洗浄効率が悪い、第二に
、一部の伝熱管やケーシングの一部に硫酸腐食により孔
が開いた場合、あるいは一部に故障が生じた場合、装置
全体を取り外して修理しなければならず、このことは特
に大型の装置では困難を伴なう、第三に、排ガスの流れ
方向に沿う底板１１に燃料重油中のｉ黄酸化物を含む排
ガスのダストが堆積し易く、その温度が散水管１３から
の水洗水やボイラーの運転停止その他の原因により低下
して酸露点以下になると、硫酸が生成されて底板１１に
著しい硫酸腐食を生じ、また、構造上底板の修理は非常
に困難である。などの欠点を有していた。"Problems to be Solved by the Invention" Firstly, in the conventional device described above, when a water washing type cleaning device is used as a means for removing dust attached to the heat transfer tube 2, Since the exhaust gas flows are perpendicular to each other, dust from the heat exchanger tubes 2 is insufficiently removed on the inflow side of the exhaust gas flow, particularly in the lower part of the inflow side (lower left part of the casing 1 in Fig. 6), resulting in poor cleaning efficiency. In addition, if some heat exchanger tubes or parts of the casing become perforated due to sulfuric acid corrosion, or if a part breaks down, the entire equipment must be removed and repaired, which is especially true for large Thirdly, the dust of the exhaust gas containing yellow oxides in heavy fuel oil tends to accumulate on the bottom plate 11 along the flow direction of the exhaust gas, and the temperature of the exhaust gas dust is higher than that of the washing water from the sprinkler pipe 13. When the dew point drops to below the acid dew point due to boiler shutdown or other causes, sulfuric acid is generated and the bottom plate 11 suffers significant sulfuric acid corrosion, and the bottom plate is structurally very difficult to repair. It had drawbacks such as.
本発明の目的は、前記のような欠点を解消した排熱回収
装置を提供することにある。An object of the present invention is to provide an exhaust heat recovery device that eliminates the above-mentioned drawbacks.
ｒ問題点を解決するための手段」
本発明は前記の目的を達成するため、縦方向の筒状のケ
ーシングへ下方より上方へ蛇行状に連通ずる状態の伝熱
管を複数列配列し、各伝熱管を前記ケーシングの側板へ
支承させたものを単一のユニットとし、このユニットを
上下方向に複数績み重ねてユニットのケーシング相互を
着脱自在に連結し、下段のユニットの最上位の各伝熱管
の開放端を隣接する上段のユニットの最下位のいずれか
の伝熱管の開放端と着脱自在な接続管で連通させ、最下
段のユニットの最下位の各伝熱管の開放端を給水管に連
通し、最上段のユニットの最上位の各伝熱管の開放端を
出水管に連通し、排ガスを前記積み重ねたユニット内に
上方より下方、又は下方より上方へ流通させるように構
成したものである。In order to achieve the above-mentioned object, the present invention arranges a plurality of rows of heat transfer tubes that communicate with the vertical cylindrical casing in a meandering manner from the bottom to the top. The heat tubes supported on the side plates of the casing form a single unit, and multiple units are stacked vertically to connect the casings of the units to each other in a removable manner. The open end of the unit is connected to the open end of one of the lowest heat exchanger tubes of the adjacent upper unit through a detachable connecting pipe, and the open end of each lowest heat exchanger tube of the lowest unit is connected to the water supply pipe. The open ends of the uppermost heat transfer tubes of the uppermost unit are connected to the water outlet pipes, and the exhaust gas is configured to flow from the top to the bottom or from the bottom to the top in the stacked units.
「作用Ｊ
ボイラー給水は、蛇行状に連続する伝熱管内を上昇する
間に排ガス流の余熱により加熱される。``Operation J Boiler feed water is heated by the residual heat of the exhaust gas stream while rising in a meandering series of heat exchanger tubes.
各ユニット相互は排熱回収装置の設置現場で組み立てる
ことが可能であり、通常の場合は各ユニット毎に梱包φ
輸送される。また、ユニット各部の修理に際しては、当
該ユニットのみを装置から分離して修理することが可能
である。Each unit can be assembled at the site where the waste heat recovery equipment is installed, and normally each unit is packed separately.
transported. Further, when repairing each part of the unit, it is possible to separate only the unit from the device and repair it.
「実施例」
第１図〜第５図を参照して本発明の好適な実施例を説明
する。"Embodiment" A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 5.
第１図において、９は本発明に係る排熱回収装置が設置
されている機台８の脚である。In FIG. 1, reference numeral 9 indicates the legs of the machine base 8 on which the exhaust heat recovery device according to the present invention is installed.
各ユニットｂは、第４図で拡大して例示するように、縦
方向の筒状のケーシング１と、両端部分が該ケーシング
１の側板３へ支承された状態で上下方向に複数段、横方
向に複数列配列された伝熱管２から構成され、上下方向
の伝熱管２は蛇行状となるように隣接するもの相互の端
部が交互に金属製のＵベンド２１で連通されている。As shown in an enlarged view in FIG. 4, each unit b includes a cylindrical casing 1 in the vertical direction, a plurality of stages in the vertical direction with both ends supported on the side plates 3 of the casing 1, and a plurality of stages in the horizontal direction. The heat exchanger tube 2 is composed of heat exchanger tubes 2 arranged in a plurality of rows, and the ends of adjacent heat exchanger tubes 2 in the vertical direction are alternately connected to each other by metal U-bends 21 so as to form a meandering shape.
ケーシングｌの上下端には鍔１０が形成され、上下のユ
ニットｂ相互はクッション材４を介して前記鍔１０の部
分で積み重ねられ１重なった鍔１０相互を図示しないね
じにより連結している。下段の二ニーｙ ） ｂの最上
位の各伝熱管２の端部は、例えばごむ製のような可とう
性のある着脱自在な接続管２２により、その上段のユニ
ットｂの最下位のいずれかの伝熱管２の端部と連通され
ている。Flanges 10 are formed at the upper and lower ends of the casing l, and the upper and lower units b are stacked together at the flanges 10 via the cushioning material 4, and the overlapping flanges 10 are connected to each other by screws (not shown). The ends of each of the uppermost heat exchanger tubes 2 of the lower unit b are connected to either of the lowermost units of the upper unit b by a flexible connecting tube 22 made of rubber, for example. It communicates with the end of the heat exchanger tube 2.
この実施例では、三個のユニツ）ｂが積み重ねられてお
り、最下段のユニットｂにおける最下位の各伝熱管２の
開放端は給水管５へ連通され、最上段のユニツ）ｂにお
ける最上位の各伝熱管２の開放端は出水管６と連通され
ていて、給水は蛇行状に連結された伝熱管２内を下方よ
り上方へ流れるようになっている。In this embodiment, three units) b are stacked, the open end of each lowest heat transfer tube 2 in the lowest unit b is communicated with the water supply pipe 5, and the uppermost unit in the uppermost unit b) The open end of each heat transfer tube 2 is communicated with a water outlet pipe 6, so that the supplied water flows from the bottom to the top in the heat transfer tubes 2 connected in a meandering manner.
最上段のユニットｂのケーシング１の上端は排ガスの入
口ダクトｃと連通し、最下段のユニットｂの下端は排ガ
スの出口ダクトｄと連通しいて。The upper end of the casing 1 of the uppermost unit b communicates with the exhaust gas inlet duct c, and the lower end of the lowermost unit b communicates with the exhaust gas outlet duct d.
排ガスは各二二ッ）ｂのケーシング１内を上方より下方
へ流れるようになっている。The exhaust gas is configured to flow from the top to the bottom inside the casing 1 of each 22)b.
入口ダクトＣには、排ガス中のダストが伝Ｆ８管２の表
面へ付着した際にダストを伝熱管２の表面から除去する
ため、それぞれ洗浄給水管ｆに連通された複数の散水管
ｅが支承されており、この散水管ｅと洗ｙＩＩ給水管ｆ
とで伝熱管２の表面のクリーニング装Ｍｇｔ−構成して
いる。伝熱管２を洗浄した洗浄水は、出口ダクトｄの下
部に設けられている漏斗状の排水口りより排出される。The inlet duct C is supported by a plurality of water sprinkler pipes e each connected to a cleaning water supply pipe f in order to remove dust from the surface of the heat transfer tube 2 when dust in the exhaust gas adheres to the surface of the heat transfer pipe 2. The sprinkler pipe e and the water supply pipe f
This constitutes a cleaning device for the surface of the heat transfer tube 2. The washing water used to wash the heat exchanger tubes 2 is discharged from a funnel-shaped drain port provided at the bottom of the outlet duct d.
ｌａは積み重ねた状態の各ユニットｂのカバーである。la is a cover of each unit b in a stacked state.
この実施例において、伝熱管２は耐酸性を高めるため第
２図のように鋼管、鋼管又はステンレス鋼管よりなる内
管２ａに鉛又は鉛合金よりなる外管２ｂを被覆した被鉛
管が使用され、内管２ａと外管２ｂとの密着性を高める
ため好ましくは内外管２ａ、２ｂとの間にはんだ層２ｃ
を介在させる。また、外管２ｂの材料としては、好まし
くは錫及びアンチモンの一方もしくは双方を０．５〜１
１重量％含む銅合金を用いる。In this embodiment, the heat transfer tube 2 is a leaded tube in which an inner tube 2a made of steel, steel or stainless steel is coated with an outer tube 2b made of lead or a lead alloy, as shown in FIG. 2, in order to increase acid resistance. In order to improve the adhesion between the inner tube 2a and the outer tube 2b, preferably a solder layer 2c is provided between the inner tube 2a and the outer tube 2b.
intervene. In addition, as the material for the outer tube 2b, preferably one or both of tin and antimony is added at 0.5 to 1
A copper alloy containing 1% by weight is used.
またこの実施例では、ｗ４５図で拡大して示すように、
ケーシング１の側板３の内側へ四弗化エチレン重合体そ
の他の弗素樹脂からなる耐熱・＃酸性シート３１を内張
すし、各伝熱管２は、耐熱・耐酸性を有する合成樹脂又
は合成ゴムより製され１、°かつ鍔７１が前記耐熱・耐
酸性シート３１に接する状態の鍔付きスリーブ７を介し
て前記側板３へ支承され、前記スリーブ７の鍔７１と耐
熱・耐酸性シートと３１の間及び伝熱管３と鍔付きスリ
ーブ７の内側の間を、それぞれ耐熱性合成ゴムなどの耐
熱性部材よりなる０リング７ａ、７ｂでシールし、ケー
シング１及び側板３の伝熱管２を支承している部分の腐
食を防止している。In addition, in this example, as shown enlarged in figure w45,
The inside of the side plate 3 of the casing 1 is lined with a heat-resistant #acidic sheet 31 made of tetrafluoroethylene polymer or other fluororesin, and each heat transfer tube 2 is made of heat-resistant and acid-resistant synthetic resin or synthetic rubber. It is supported on the side plate 3 via the flanged sleeve 7 which is in contact with the heat-resistant/acid-resistant sheet 31 and between the flanged 71 of the sleeve 7 and the heat-resistant/acid-resistant sheet 31. The space between the heat exchanger tube 3 and the inside of the flanged sleeve 7 is sealed with O-rings 7a and 7b each made of a heat-resistant material such as heat-resistant synthetic rubber, and the portion of the casing 1 and side plate 3 that supports the heat exchanger tube 2 prevents corrosion.
スリーブ７はＯリング７ａ 、 ７ｂを所要の部分に装
着した後、矢印口のように側板３の内側から側板３とス
リーブとの間隙に押込まれるので、その便宜のため先端
へ９０度間隔にすり割り７２が形成しである。After the O-rings 7a and 7b are attached to the required parts, the sleeve 7 is pushed into the gap between the side plate 3 and the sleeve from the inside of the side plate 3 as shown by the arrow opening. A slot 72 is formed.
前記実施例では、排ガス流はケーシングｌ内を上方より
下方に流れるが、これに代えて、排ガス流をケーシング
ｌ内を下方より上方に流れるように構成しても実施する
ことができる。この場合散水管ｅの洗浄水は排ガス流と
対向する状態になるが、洗浄水は重力により下方へ散水
されるから障害にはならない。In the embodiment described above, the exhaust gas flow flows through the casing I from the top to the bottom, but it can alternatively be configured such that the exhaust gas flow flows through the casing I from the bottom to the top. In this case, the cleaning water in the sprinkler pipe e is in a state where it faces the exhaust gas flow, but since the cleaning water is sprayed downward by gravity, it does not become an obstacle.
第１図のクリーニング装置ｇは水洗式であるが、これに
代えて第３図のようにブラシ式のものを用いてもよい、
第３図のクリーニング装置は、各段又は各列の伝熱管２
の間を伝熱管２と直交する状態に往復作動するロッドｊ
付きのブラシホルダにと、ホルダーｋに取付けられたブ
ラシｍにより構成され、ブラシｍにより伝熱管２０表面
に付着したダストを除去するようになっている。Although the cleaning device g shown in FIG. 1 is a water washing type, a brush type one as shown in FIG. 3 may be used instead.
The cleaning device shown in FIG.
rod j that reciprocates in a state perpendicular to the heat exchanger tube 2 between
It consists of a brush holder with an attached brush holder and a brush m attached to the holder k, and the dust attached to the surface of the heat exchanger tube 20 is removed by the brush m.
「発明の効果」
未発明に係る排ガス用排熱回収装看は、排ガス波が縦方
向のケーシング内にある伝熱管と直交する状態で上下方
向へ流れるようにしたので、散水式クリーニング装置を
使用した場合に、伝熱管表面の洗浄にむらがなく洗浄効
果が高まり、ケーシングには底板がないから底板へのダ
ストの堆積もない。また、同様な構成のユニットを７１
み重ねて分離可能に連結することにより装置本体を構成
しているので、梱包や輸送などの取扱いが便利でしかも
画一化することが可能であり、一部伝熱管の腐食その他
一部に故障を生じた場合でも、故障のあるユニットのみ
を取り外して交換することができ、整備が非常に能率的
に行なわれる。"Effects of the Invention" The uninvented exhaust heat recovery device for exhaust gas uses a water spray cleaning device because the exhaust gas waves flow vertically in a state perpendicular to the heat transfer tubes in the vertical casing. In this case, the surface of the heat exchanger tube can be cleaned evenly and the cleaning effect is enhanced, and since the casing has no bottom plate, there is no accumulation of dust on the bottom plate. In addition, 71 units of similar configuration were added.
Since the main body of the device is constructed by stacking and connecting them in a separable manner, handling such as packaging and transportation is convenient and can be standardized. Even if a problem occurs, only the defective unit can be removed and replaced, making maintenance very efficient.
第１図は大発明に係る排熱回収装置の一例を示す一部破
断正面図、第２図は伝熱管の一例を示す一部拡大断面図
、第３図は伝熱管のクリーニング装置の変形例を示す一
部断面図、第４図は装置のユニット相互の組立状態を示
す拡大断面図、第５図はケーシングの側板の伝熱管支承
部の一部拡大断面図、第６図は従来の装置の概略側断面
図である。
主要図中符号の説明
ｌはケーシング、２は伝熱管、２１はＵベンド、２２接
続管、２ａは内管、２ｂは外管、２Ｃははんだ層。
３はケーシングの側板、３１は耐熱・耐酸性シート、４
は給水管、６は出水管、７は鍔付きスリーブ、７１は鍔
、７ａ、？ｂは０リング、ｂはユニット、Ｃは入口ダク
ト、ｄは出口ダクトである。
第４図Fig. 1 is a partially cutaway front view showing an example of the waste heat recovery device according to the great invention, Fig. 2 is a partially enlarged sectional view showing an example of the heat transfer tube, and Fig. 3 is a modified example of the heat transfer tube cleaning device. 4 is an enlarged sectional view showing how the units of the device are assembled with each other, FIG. 5 is a partially enlarged sectional view of the heat exchanger tube support on the side plate of the casing, and FIG. 6 is a conventional device. FIG. Explanation of the symbols in the main figures: 1 is the casing, 2 is the heat exchanger tube, 21 is the U-bend, 22 is the connecting tube, 2a is the inner tube, 2b is the outer tube, and 2C is the solder layer. 3 is the side plate of the casing, 31 is a heat-resistant/acid-resistant sheet, 4
is a water supply pipe, 6 is a water outlet pipe, 7 is a sleeve with a flange, 71 is a flange, 7a, ? b is the 0 ring, b is the unit, C is the inlet duct, and d is the outlet duct. Figure 4
Claims (4)
行状に連通する状態の伝熱管を複数列配列し、各伝熱管
を前記ケーシングの側板へ支承させたものを単一のユニ
ットとし、このユニットを上下方向に複数積み重ねてユ
ニットのケーシング相互を着脱自在に連結し、下段のユ
ニットの最上位の各伝熱管の開放端を隣接する上段のユ
ニットの最下位のいずれかの伝熱管の開放端と着脱自在
な接続管で連通させ、最下段のユニットの最下位の各伝
熱管の開放端を給水管に連通し、最上段のユニットの最
上位の各伝熱管の開放端を出水管に連通し、排ガスを前
記積み重ねたユニット内に上方より下方、又は下方より
上方へ流通させることを特徴とする排ガス用排熱回収装
置。(1) A single unit is formed by arranging multiple rows of heat transfer tubes in a meandering manner from the bottom to the top of a vertically cylindrical casing, and supporting each heat transfer tube on the side plate of the casing. , a plurality of these units are stacked vertically and the casings of the units are removably connected to each other, and the open end of each of the uppermost heat exchanger tubes of the lower unit is connected to one of the lowermost heat exchanger tubes of the adjacent upper unit. The open end of each heat transfer tube in the lowest unit is connected to the water supply pipe, and the open end of each heat transfer tube in the top level of the top unit is connected to the water supply pipe. An exhaust heat recovery device for exhaust gas, characterized in that the exhaust gas is communicated with the stacked units to flow the exhaust gas from the upper side to the lower side or from the lower side to the upper side.
体その他の耐熱・耐酸性シートを内張りし、各伝熱管は
、耐熱・耐酸性を有する合成樹脂又は合成ゴムより製さ
れかつ鍔が前記耐熱・耐酸性シートに接する状態の鍔付
きスリーブを介して前記側板へ支承され、前記スリーブ
の鍔と耐熱・耐酸性シートとの間及び伝熱管と鍔付きス
リーブの間を、それぞれ耐熱性合成ゴムなどの耐熱性部
材よりなるＯリングでシールした、特許請求の範囲第１
項に記載の排ガス用排熱回収装置。(2) The inside of the side plate of the casing is lined with a heat-resistant and acid-resistant sheet such as tetrafluoroethylene polymer, and each heat transfer tube is made of heat-resistant and acid-resistant synthetic resin or synthetic rubber, and the brim is It is supported on the side plate via a flanged sleeve in contact with the heat-resistant/acid-resistant sheet, and heat-resistant synthetic rubber is connected between the flanges of the sleeve and the heat-resistant/acid-resistant sheet, and between the heat transfer tube and the flanged sleeve. Claim 1 sealed with an O-ring made of a heat-resistant member such as
Exhaust heat recovery device for exhaust gas as described in .
なる内管に鉛又は鉛合金よりなる外管を被覆した被鉛二
重管である、特許請求の範囲第１項に記載の排ガス用排
熱回収装置。(3) The exhaust gas according to claim 1, wherein the heat transfer tube is a leaded double tube in which an inner tube made of steel, copper, or stainless steel is coated with an outer tube made of lead or a lead alloy. Exhaust heat recovery equipment.
なる内管にハンダ層を介して鉛又は鉛合金よりなる外管
が被覆された被鉛管である、特許請求の範囲第１項に記
載の排ガス用排熱回収装置。(4) According to claim 1, the heat transfer tube is a leaded tube in which an inner tube made of steel, copper, or stainless steel is covered with an outer tube made of lead or a lead alloy through a solder layer. The exhaust heat recovery device for exhaust gas described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25949886A JPS63113297A (en) | 1986-10-30 | 1986-10-30 | Exhaust gas waste heat recovering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25949886A JPS63113297A (en) | 1986-10-30 | 1986-10-30 | Exhaust gas waste heat recovering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63113297A true JPS63113297A (en) | 1988-05-18 |
Family
ID=17334929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25949886A Pending JPS63113297A (en) | 1986-10-30 | 1986-10-30 | Exhaust gas waste heat recovering system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63113297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545460U (en) * | 1991-10-23 | 1993-06-18 | 王子製紙株式会社 | Lime firing kiln exhaust gas treatment equipment |
-
1986
- 1986-10-30 JP JP25949886A patent/JPS63113297A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545460U (en) * | 1991-10-23 | 1993-06-18 | 王子製紙株式会社 | Lime firing kiln exhaust gas treatment equipment |
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