JPS5878097A - Heat exchanger for sea water - Google Patents
Heat exchanger for sea waterInfo
- Publication number
- JPS5878097A JPS5878097A JP56162663A JP16266381A JPS5878097A JP S5878097 A JPS5878097 A JP S5878097A JP 56162663 A JP56162663 A JP 56162663A JP 16266381 A JP16266381 A JP 16266381A JP S5878097 A JPS5878097 A JP S5878097A
- Authority
- JP
- Japan
- Prior art keywords
- outer diameter
- bolt
- lining
- seawater
- heat exchanger
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、海水熱交換器に係り、特にその海水系容器の
内面に有するライニング材の剥離を防止するようにした
犠牲陽極板の取付ボルト部分の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seawater heat exchanger, and more particularly to an improvement in the mounting bolt portion of a sacrificial anode plate to prevent peeling of the lining material provided on the inner surface of the seawater container.
海水熱交換器の海水系容器として、最も良く用いられて
いる構造としては、炭素鋼製の容器の内側即ち海水との
接液部にゴムライニング族こし、更に、炭素鋼製容器を
海水の腐食から保護するために犠牲陽極板が取付けられ
ている。これは、コストが安いこと、ゴムライニングが
比較的補修が容易であることなどの理由によるものであ
る。The most commonly used structure for a seawater system container in a seawater heat exchanger is to line the inside of the carbon steel container, that is, the part that comes into contact with seawater, with a rubber lining. A sacrificial anode plate is installed to protect against This is due to the low cost and the fact that the rubber lining is relatively easy to repair.
しかしながら、従来の構造では、この犠牲陽極板を取付
ボルトで容器の内側に固着する際、ゴムライニングの先
端を引っかけたり、折り曲げられたりして、ゴムライニ
ングの剥離が生じやすかった。しかも、犠牲陽極板は自
ら海水中にイオンを放出するので消耗し、使用しである
間には定期的に新品と交換する必要があり、その都度犠
牲陽極板の取外し、取付けを行わなければならないので
ゴムライニングの先端の剥離を発生させる機会も多く、
ゴムライニングの剥離によって炭素鋼が腐食し容器の寿
命を短くする原因となっていた。However, in the conventional structure, when the sacrificial anode plate was fixed to the inside of the container with a mounting bolt, the tip of the rubber lining was easily caught or bent, and the rubber lining was likely to peel off. Moreover, since the sacrificial anode plate releases ions into the seawater, it wears out and needs to be replaced with a new one periodically during use, and the sacrificial anode plate must be removed and attached each time. Therefore, there are many chances for the tip of the rubber lining to peel off.
Peeling of the rubber lining caused the carbon steel to corrode, shortening the life of the container.
本発明の目的は、上述の従来の欠点を解消するもので、
犠牲陽極板の取付け、取外しの際にも、ライニング材の
剥離が生じないようにして海水系容器の機能を長期間維
持するようにした海水熱交換器を提供することにある。The object of the present invention is to overcome the above-mentioned conventional drawbacks,
To provide a seawater heat exchanger which maintains the function of a seawater system container for a long period of time by preventing peeling of a lining material even when attaching and removing a sacrificial anode plate.
本発明は、上記目的を達成するために、容器の内面に犠
牲陽極板を取付けるための取付ポルトの下端部分に、ラ
イニング材の厚み以上の段差を設け、その段差部分の外
周上の前記う）イニング材を含む取付ボルトの外径が取
付ボルトの上端部分の外径以下となるようにしたことを
特徴としている。In order to achieve the above object, the present invention provides a step greater than the thickness of the lining material at the lower end portion of the mounting port for attaching the sacrificial anode plate to the inner surface of the container, and provides the above-mentioned steps on the outer periphery of the step portion. The present invention is characterized in that the outer diameter of the mounting bolt including the inning material is equal to or smaller than the outer diameter of the upper end portion of the mounting bolt.
以下本発明の実施例を添付の図面に基づいて説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図乃至第４図は、従来の海水熱交換器の断面図を示
したものである。海水熱交換器は、管側流体の折流を行
う前水室１と、後水室１６が管板７と締付ポルト９によ
りフランジ５を介して強固に取付けられ、管板７は胴体
１０と溶接により一体的に取付けられ、又胴体１０には
熱交換器全体を基礎台上に設置するために支持脚１４が
取付けられている。1 to 4 show cross-sectional views of conventional seawater heat exchangers. In the seawater heat exchanger, a front water chamber 1 and a rear water chamber 16, which perform folding of the tube-side fluid, are firmly attached to a tube plate 7 and a tightening port 9 via a flange 5, and the tube plate 7 is attached to a body 10. The heat exchanger is integrally attached to the body 10 by welding, and support legs 14 are attached to the body 10 in order to install the entire heat exchanger on a base.
管側の流体である海水は、氷室入口ノズル２より仕切板
４により区切られた前水室１の下方に入り、第２回に示
されるような多数の伝熱管１５に分流し、後水室１６の
下部へ出て更に上部に流れ再び多数の伝熱管１５に流入
して前水室１の上方に流れて水室出口ノズル３よシ容器
外へ流出するようになっている。Seawater, which is the fluid on the tube side, enters the lower part of the front water chamber 1 separated by the partition plate 4 from the ice chamber inlet nozzle 2, is divided into a large number of heat exchanger tubes 15 as shown in the second part, and flows into the rear water chamber. 16, flows further to the upper part, flows into the large number of heat exchanger tubes 15 again, flows above the front water chamber 1, and flows out of the water chamber outlet nozzle 3 to the outside of the container.
一方、胴体側の被冷却体は、胴入口ノズル１２より胴体
１０を折流し、その間に伝熱管１５の外表面と接触する
ことにより冷却されて胴出ロノズル１３より器外へ放出
されるようになっている。On the other hand, the object to be cooled on the fuselage side flows through the fuselage 10 through the fuselage inlet nozzle 12, is cooled by contacting the outer surface of the heat transfer tube 15 during that time, and is discharged outside the fuselage through the fuselage outlet nozzle 13. It has become.
前水室１及び後水室１６を構成する部品の材質は、溶接
性が優れ、又強度も大きく安価であることから一般には
炭素鋼が用いられている。従って使用流体が海水である
ために接液しないようにすることと、接液した場合の腐
食を考慮して炭素鋼の内面には、ゴムライニング６が接
着剤により強固に全面ライニング施行されている。周胴
体側については、流体が海水でないのでライニングは施
こされていない。又、管板７には、氷室側に耐海水に強
い素鋼系の合せ板８をクララｙして用いられている。Carbon steel is generally used as the material for the parts constituting the front water chamber 1 and the rear water chamber 16 because it has excellent weldability, high strength, and is inexpensive. Therefore, since the fluid used is seawater, in order to prevent it from coming into contact with the liquid, and in consideration of corrosion if it comes into contact with the liquid, a rubber lining 6 is firmly applied to the entire surface of the inner surface of the carbon steel using an adhesive. . As for the circumferential fuselage side, no lining is applied because the fluid is not seawater. In addition, the tube plate 7 is provided with a laminated plate 8 made of raw steel that is resistant to seawater on the side of the ice chamber.
このように、炭素鋼系材料は海水と接液しないよう゛に
されているが更に微小なピンホールが生じても使用に耐
えるように氷室の腐食から保護するために犠牲陽極板１
７が第２図に示すように水室内に多数設けられている。In this way, carbon steel materials are designed not to come into contact with seawater, but in order to withstand use even if minute pinholes occur, a sacrificial anode plate 1 is used to protect it from corrosion in the ice chamber.
7 are provided in the water chamber in large numbers as shown in FIG.
従来、この犠牲陽極板１７の取付けは第３図及び第４図
に示すように、取付ボルト１８及びナツト１９によって
氷室（前水室１．後水室１６）の内面に固着されている
が、取付ボルト１８に取付ける際に、ゴムライニング６
がその厚みの分だけ取付ボルト１８より出張っているた
めに、第４図の二点鎖線にて示すように、ゴムライニン
グ６の先端部を引っかけたり、折り曲げられたりして、
ライニング材の剥離が生じ易くなっている。しかも、こ
の犠牲陽極板１７は、使用している間に、犠牲陽極板１
７の亜鉛板が溶出して減少するので定期的に交換を必要
とし、容器の寿命中には何回も取外し、取付は等のメイ
ンテナンスが行われる。Conventionally, the sacrificial anode plate 17 has been fixed to the inner surface of the ice chamber (front water chamber 1, rear water chamber 16) with mounting bolts 18 and nuts 19, as shown in FIGS. 3 and 4. When attaching to the mounting bolt 18, remove the rubber lining 6.
Since the rubber lining 6 protrudes from the mounting bolt 18 by the thickness thereof, the tip of the rubber lining 6 may be caught or bent, as shown by the two-dot chain line in Fig. 4.
The lining material is likely to peel off. Moreover, this sacrificial anode plate 17 is
Since the zinc plate No. 7 elutes and decreases, it needs to be replaced periodically, and maintenance such as removal and installation is performed many times during the life of the container.
それ故、ゴムライニング６の先端部が剥離する機会も多
い。Therefore, there are many chances that the tip of the rubber lining 6 will peel off.
又、犠牲陽極板１７は、ナツト１９との間に充填剤２１
を充填してナツト１９の廻り止めがなされているが、使
用中に充填剤が劣化して破損した場合、海水の流速、振
動によシナット１９がゆるみ、犠牲陽極板１７の亜鉛板
とクッション２０との間に隙間が生じて海水が進入し、
ライニング６の剥離した部分に入り、除々に前水室１を
腐食するようになる。Further, the sacrificial anode plate 17 has a filler 21 between it and the nut 19.
However, if the filler deteriorates and breaks during use, the nut 19 will loosen due to the seawater flow velocity and vibration, and the zinc plate of the sacrificial anode plate 17 and the cushion 20 will become loose. A gap is created between the two and seawater enters,
It enters the peeled part of the lining 6 and gradually corrodes the front water chamber 1.
そこで、本発明においては、第４図に示すゴムライニン
グ部の外径ｄ３を取付ボルト１８の外径ｄ１と同一か、
それより小さくするようにしたものであって、第５図及
び第６図は、本発明による犠牲陽極板１７の取付構造を
示したものである。Therefore, in the present invention, whether the outer diameter d3 of the rubber lining shown in FIG. 4 is the same as the outer diameter d1 of the mounting bolt 18 or
5 and 6 show the mounting structure of the sacrificial anode plate 17 according to the present invention.
取付ボルト２２は、炭素鋼製の前水室１に溶接により固
着されており、その外径はｄ、で、ゴムライニング６が
施行される所は厚ｔだけ段差を設け、ライニング施行後
の外径は取付ポル）２２（７：ｉ外径ｄ、 以下にな
るようにしている。The mounting bolt 22 is fixed to the front water chamber 1 made of carbon steel by welding, and its outer diameter is d, and a step with a thickness t is provided where the rubber lining 6 is applied. The diameter is set to be less than 22 (7: i outside diameter d).
このような取付ボルト２２にクッション２０を挿入し、
その後犠牲陽極板１７を取付け、ナツト１９を取付ボル
ト２２に締付けて固着し、最後に充填剤２１を充填して
、す１７） １９が廻らないように固定している。Insert the cushion 20 into such a mounting bolt 22,
Thereafter, the sacrificial anode plate 17 is attached, the nut 19 is tightened to the mounting bolt 22, and the filler 21 is finally filled to fix the plate 17) so that it does not rotate.
従って、本発明では、取付ボルト２２の外径ｄ。Therefore, in the present invention, the outer diameter d of the mounting bolt 22.
より出張るものがないために、取付ボルト２２の外径１
ｄｌ の部分がクッション２０の挿入時のガイドの役目
を果たし、その結果（組立てはスムースであり、ライニ
ング材の折れ曲り、剥離などを無くすことができる。又
、充填材２１が劣化して破損した場合、ナツト１９がゆ
るみ、犠牲陽極板、Ｉ ７．−とり２ツ・ノヨン２０の
間に隙間が生じ、海水が取付ボルト２２迄浸入してきて
も、ライニング材の剥離がないので耐圧部材である前水
室１との接液はなく海水による炭素鋼の腐食をなくすこ
とができる。In order to avoid protruding parts, the outer diameter of the mounting bolt 22 is 1.
The part dl serves as a guide when inserting the cushion 20, and as a result (assembly is smooth and the lining material is not bent or peeled off). In this case, even if the nut 19 becomes loose and a gap is created between the sacrificial anode plate, I7.-2, and the bolt 20, and seawater infiltrates up to the mounting bolt 22, the lining material will not peel off, so it is a pressure-resistant member. There is no liquid contact with the front water chamber 1, and corrosion of carbon steel by seawater can be eliminated.
以上述べたように、本発明によれば、ライニング材の剥
離をなくすことができるので、氷室の炭素鋼と海水との
接液が阻止される結果、容器が海水による腐食から防止
され、海水熱、り換器の機能維持゛の長寿命化を図るこ
とができる。As described above, according to the present invention, peeling of the lining material can be eliminated, and as a result, the carbon steel of the icebox is prevented from coming into contact with seawater, and as a result, the container is prevented from being corroded by seawater, and the seawater heats the container. Therefore, it is possible to maintain the function of the exchanger and extend its service life.
第１図は従来の海水熱交換器の全体断面図、第２図は第
１図のＡ−Ａ線の一部断面図、第３図及び第４図は第２
図の犠牲陽極板の取付状態を示す要部拡大断面図、第５
図及び第６図は本発明による犠牲陽極板の取付状態を示
す要部拡大断面図である。
１、・・・前水室、６．・・・ゴムライニング、１６．
・・・後水室１７、・・・犠牲陽極板、１９．・・・ナ
ラ）、２２．・・・取付ポ／’１−１
第２ ロ
第３ 国
８４− 口Figure 1 is an overall sectional view of a conventional seawater heat exchanger, Figure 2 is a partial sectional view taken along line A-A in Figure 1, and Figures 3 and 4 are sectional views of a conventional seawater heat exchanger.
5th enlarged cross-sectional view of main parts showing the installation state of the sacrificial anode plate shown in the figure.
FIG. 6 is an enlarged sectional view of a main part showing how the sacrificial anode plate according to the present invention is attached. 1. Front water chamber, 6. ...Rubber lining, 16.
... Rear water chamber 17, ... Sacrificial anode plate, 19. ... Oak), 22. ...Mounting port/'1-1 2nd RO 3rd country 84- mouth
Claims (1)
る海水熱交換器において、前記容器の内面に犠牲陽極板
を取付けるための取付ボルトの下端部分に、前記ライニ
ング材の厚み以上の段差を設は該段差部分の外周上の前
記ライニング材を含む前記取付ボルトの外径が前記取付
ボルトの上端部分の外径以下となるようにしたことを特
徴とする海水熱交換器。1. In a seawater heat exchanger equipped with a seawater-based container having a lining material on the inner surface, a step greater than the thickness of the lining material must be provided at the lower end of the mounting bolt for attaching the sacrificial anode plate to the inner surface of the container. A seawater heat exchanger characterized in that an outer diameter of the mounting bolt including the lining material on the outer periphery of the stepped portion is smaller than or equal to an outer diameter of an upper end portion of the mounting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56162663A JPS6017994B2 (en) | 1981-10-14 | 1981-10-14 | seawater heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56162663A JPS6017994B2 (en) | 1981-10-14 | 1981-10-14 | seawater heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5878097A true JPS5878097A (en) | 1983-05-11 |
| JPS6017994B2 JPS6017994B2 (en) | 1985-05-08 |
Family
ID=15758906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56162663A Expired JPS6017994B2 (en) | 1981-10-14 | 1981-10-14 | seawater heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017994B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006083422A (en) * | 2004-09-15 | 2006-03-30 | Nakabohtec Corrosion Protecting Co Ltd | Electrolytic corrosion protection device |
| JP2010243100A (en) * | 2009-04-08 | 2010-10-28 | Daikin Ind Ltd | Water-cooled heat exchanger |
-
1981
- 1981-10-14 JP JP56162663A patent/JPS6017994B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006083422A (en) * | 2004-09-15 | 2006-03-30 | Nakabohtec Corrosion Protecting Co Ltd | Electrolytic corrosion protection device |
| JP2010243100A (en) * | 2009-04-08 | 2010-10-28 | Daikin Ind Ltd | Water-cooled heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6017994B2 (en) | 1985-05-08 |
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