經濟部智慧財產局員工消費合作杜印製 1225143 A7 _____B7 __ 五、發明說明（1 ) 〔發明領域〕 本發明有關一種防止例如使用海水之殻管式熱交換器 (Shell and tube heat exchanger )中異種金屬材料相互間的 接觸部分所發生之電解腐飩作用之電鈾防止方法。 〔以往之技術〕 歷年來，一般使用以障板（baffle plate )固定複數支 冷却管之殻管式熱交換器（參照特開平8 - 3 5 7 9 0號 公報）。此種熱交換器，係將並列狀態之複數支冷却管周 圍以殻板包圍而設置冷媒室者，並使用爲在此冷却管中通 入冷却水以冷却送入冷媒室之油脂或氟碳（flon即（ fluorocarbon ))之熱交換器。 〔發明擬解決之課題〕 然而，使用海水爲冷却水之情形，一般周知在連結此 種冷却管端部之端板（end plate )的電解腐蝕相當嚴重。 亦即，由於冷却管一般使用鋼或銅合金，而連結冷却管之 端板則使用鋼板，在冷却管與端板之接合面將產生因電位 差引起之電蝕作用。再者，使用海水爲冷却水之情形，因 電蝕作用引起之腐蝕將更嚴重，故隔離冷媒室之端板與冷 却管之接合部分的腐蝕將最早進行。因此，在殻管式熱交 換器而言，端板之耐用壽命即爲熱交換器之耐用壽命。換 言之，如能延長端板之耐久性，則表示能延長殻管式熱交 換器之耐久性。而且，如能防止進行中之腐蝕之同時’在 ------丨丨訂·丨—丨！！ . (請先閱讀背面之注意事項再填寫本頁)Duo printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by 1225143 A7 _____B7 __ V. Description of the Invention (1) [Field of Invention] The present invention relates to a method for preventing alien species in shell and tube heat exchangers, such as the use of seawater. Electric uranium prevention method for electrolytic decay of metal in contact with metal materials. [Previous technology] Over the years, shell-and-tube heat exchangers in which a plurality of cooling tubes are fixed by a baffle plate have generally been used (see Japanese Patent Application Laid-Open No. 8-3359). This type of heat exchanger is a system in which a refrigerant chamber is provided by surrounding a plurality of parallel cooling pipes with a shell plate around them, and the cooling pipe is used to pass cooling water to cool the grease or fluorocarbon sent to the refrigerant chamber ( flon is (fluorocarbon)) heat exchanger. [Problems to be Solved by the Invention] However, in the case where seawater is used as cooling water, it is generally known that electrolytic corrosion on an end plate connecting the ends of such cooling pipes is quite serious. That is, since the cooling pipe generally uses steel or copper alloy, and the end plate connected to the cooling pipe uses steel plate, the joint surface of the cooling pipe and the end plate will cause an electric corrosion effect due to the potential difference. In addition, in the case of using seawater as cooling water, the corrosion due to galvanic corrosion will be more serious, so the corrosion of the joint between the end plate of the isolation refrigerant chamber and the cooling pipe will take place as early as possible. Therefore, in the case of a shell and tube heat exchanger, the endurance of the end plate is the endurance of the heat exchanger. In other words, if the durability of the end plate can be extended, it means that the durability of the shell-and-tube heat exchanger can be extended. And, if it can prevent the corrosion in progress, at the same time ------ 丨 丨 Order · 丨-丨! !! . (Please read the notes on the back before filling this page)
本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4- 1225143 A7 B7 五、發明說明（2 ) 腐飩引起之裂縫或龜裂內塡充塡充劑，則能修理因端板破 損而不能使用之熱交換器。 因此，本發明係爲解決上述課題而創造者，其目的爲 提供一種能延長熱交換器之耐久性，且能修理因端板腐蝕 而不能使用之熱交換器之熱交換器的電解腐飩之防止方法 〇 〔爲解決課題之方法〕 爲解決上述課題之本發明的第1方法，係將並列狀態 之金屬製冷却管1的各端部互相之與冷却管1的材質相異 的金屬製端板2連結之熱交換器P中，在冷却管1與端板 2之接觸面塗被脂肪族聚胺性的防蝕劑3之方法。 又，第2方法之熱交換器P，係屬於一種以海水作爲 冷却水使用之殻管式熱交換器，在連結冷却管1之端板2 表面噴塗或塗敷前述防蝕劑3以塗被防蝕劑之方法。 再者，第3方法之熱交換器P，係屬於一種電解腐鈾 已有進展之熱交換器P，在端板2的表面及腐蝕部分噴塗 或塗敷前述防蝕劑3，使電解腐蝕部分含浸防蝕劑3作爲 解決課題之方法者。 〔發明實施形態〕 以下’作爲本發明實施形態，就冷却冷凍機中已凝聚 之氟碳之殼管式熱交換器P當作一實施例加以說明之。 圖中所示符號1，係在並列狀態之複數支冷却管，而 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) 訂---------Μ 經濟部智慧財產局員工消費合作社印製 -5- 1225143 經濟部智慧財產局員工消費合作杜印製 A7 B7 五、發明說明（3 ) 端板2將此冷却管1的兩端部連結，此端部2並且隔離冷 却管1的開口端部與設置在冷却管1的側面邊之冷媒室 P 1 (參照第1圖）。殼（Shell ) 4包圍冷却管1的側面 ’在殻4側面設置有冷媒進料口 5及冷媒出料口 6。另外 ’在此殼4內部配置有有障板7以固定各冷却管1 (參照 第2圖）°又，件號8表示供給海水之給水口，件號9表 τκ排水口。冷却管1的材質，一般使用銅或銅合金。另方 面’端板2的材質則使用鋼料。在此圖示例中，係表示殼 管式的熱交換器P，惟在其他型式的熱交換器P當然亦可 適用本發明電解腐蝕防止方法。 在冷却管1中所發生之電解腐蝕作用主要係在連結此 冷却管1的端部之端板2與冷却管1之接觸部分，以及最 多的發生在從此接觸部分至端板2的表面。因此，在冷却 管1與端板2之接觸面以及在端板2的表面，預先塗被脂 肪族聚胺性的防鈾劑3後再連結冷却管1。在此情形，在 熱交換器之組裝過程中將實施電解腐蝕防止方法。防蝕劑 3的塗被方法，可由使端板2沉積在防蝕劑3的溶液中之 方法，依噴霧之噴塗方法，依刷塗之塗敷方法等中任意選 擇。 又，對組裝後之熱交換器P，則在端板2表面噴塗或 塗敷防蝕劑3以塗被防蝕劑3。 對已進行因電解腐蝕之熱交換器P，則在端板2表面 及腐蝕部分噴塗或塗敷前述防鈾劑3，使電解腐蝕部分含 漬防蝕劑3。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -6 - --------^---------. (請先閱讀背面之注意事項再填寫本頁) 1225143 A7 經濟部智慧財產局員工消費合作社印製 B7_五、發明說明（4 ) 防蝕劑3所用之脂肪族聚胺，係一種雙組份環氧樹脂 ，而使用脂肪族聚胺作爲硬化劑之樹脂。由於此種樹脂的 熱膨脹係數爲5 · 0 X 1 0 — 5 / °C，優於防鈾性並有浸透 性之故，微小的龜裂內亦能浸透。再者，此種脂肪族聚胺 ，因在浸透後能在龜裂或腐蝕引起之間隙內硬化之故，作 爲塡充材料亦有效。 另外，熱交換器P，除圖示例之外，亦可爲冷油器（ oil cooler )或空氣冷却器所用之熱交換器P。尤其，在此 種空氣冷却器，當大氣中之水分成爲凝聚水液化時，如大 氣中之亞硫酸氣體等氧化物溶在凝聚水中時，則洩水將變 成酸性化而發生電解腐蝕。本發明之電解腐蝕防止方法， 能防止此種電解腐蝕。 〔發明效果〕 本發明藉由上述電解腐蝕防止方法，已達成當初之目 的。亦即，藉由在冷却管1與端板2之接觸面塗被脂肪族 聚胺性的防蝕劑3，可防止異種金屬間的電解腐蝕作用。 因而，在所有熱交換器P中，可防止以異種金屬互相間的 接合部分之電解腐蝕爲原因之腐蝕。 再者，以海水作爲冷却水使用之殼管或熱交換器中， 藉由在連結冷却管1之端板2表面噴塗或塗敷防蝕劑3以 塗被防蝕劑，能防止由於異種金屬及海水所引起之腐蝕嚴 重的部分之電解腐蝕。結果，可改善端板2的耐久性並可 長期延長殻管式熱交換器p的耐用年數。 (請先閱讀背面之注音填寫本頁)This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -4- 1225143 A7 B7 V. Description of the invention (2) Cracks or cracks caused by decay can be filled with filling agent, which can be repaired Heat exchangers that cannot be used due to broken end plates. Therefore, the present invention was created to solve the above-mentioned problems, and an object thereof is to provide an electrolytic corrosion solution for a heat exchanger that can extend the durability of the heat exchanger and repair a heat exchanger that cannot be used due to corrosion of the end plate. Prevention method 0 [Method for solving the problem] In order to solve the above-mentioned problem, the first method of the present invention is a metal end in which the ends of the metal cooling pipes 1 in a parallel state are mutually different from the material of the cooling pipe 1 In the heat exchanger P to which the plates 2 are connected, the contact surface between the cooling tube 1 and the end plate 2 is coated with an aliphatic polyamine-based corrosion inhibitor 3. In addition, the heat exchanger P of the second method belongs to a shell-and-tube heat exchanger using seawater as cooling water. The surface of the end plate 2 connected to the cooling pipe 1 is spray-coated or coated with the aforementioned anticorrosive agent 3 to prevent corrosion.剂 的 方法。 Agent method. In addition, the heat exchanger P of the third method belongs to a heat exchanger P that has been progressed in electrolytic rot of uranium. The surface of the end plate 2 and the corroded portion are sprayed or coated with the aforementioned corrosion inhibitor 3 to impregnate the electrolytic corroded portion The anticorrosive agent 3 is a method for solving the problem. [Inventive Embodiment] Hereinafter, as an embodiment of the present invention, a shell-and-tube heat exchanger P for cooling fluorocarbon that has accumulated in a refrigerator will be described as an example. The symbol 1 shown in the figure is a plurality of cooling pipes in a parallel state, and this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page) Order --------- M Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -5- 1225143 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Du A7 B7 V. Description of the invention (3) End plate 2 Both ends of the cooling pipe 1 are connected, and this end 2 separates the open end of the cooling pipe 1 from the refrigerant chamber P 1 (see FIG. 1) provided on the side of the cooling pipe 1. A shell 4 surrounds the side of the cooling pipe 1 ′ On the side of the shell 4, a refrigerant inlet 5 and a refrigerant outlet 6 are provided. In addition, a baffle plate 7 is arranged inside the case 4 to fix each cooling pipe 1 (refer to FIG. 2). Also, the item number 8 indicates a water supply port for supplying seawater, and the item number 9 indicates a τκ drainage port. The material of the cooling pipe 1 is generally copper or a copper alloy. The material of the end plate 2 is steel. In the example shown in the figure, the shell-and-tube heat exchanger P is shown. Of course, the electrolytic corrosion prevention method of the present invention can also be applied to other types of heat exchanger P. The electrolytic corrosion effect occurring in the cooling pipe 1 mainly occurs in the contact portion between the end plate 2 and the cooling pipe 1 connecting the ends of the cooling pipe 1, and most occurs from the contact portion to the surface of the end plate 2. Therefore, the contact surface between the cooling pipe 1 and the end plate 2 and the surface of the end plate 2 are coated with the aliphatic polyamine-based uranium antimony agent 3 in advance, and then the cooling pipe 1 is connected. In this case, electrolytic corrosion prevention methods will be implemented during the assembly of the heat exchanger. The coating method of the anticorrosive agent 3 can be arbitrarily selected by a method of depositing the end plate 2 in the solution of the anticorrosive agent 3, a spraying method by spraying, a coating method by brushing, or the like. In addition, for the assembled heat exchanger P, the surface of the end plate 2 is spray-coated or coated with an anti-corrosive agent 3 to coat the anti-corrosive agent 3. For the heat exchanger P which has been subjected to electrolytic corrosion, the surface of the end plate 2 and the corroded portion are spray-coated or coated with the aforementioned uranium-preventive agent 3 so that the electrolytically corroded portion is impregnated with the anti-corrosive agent 3. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -6--------- ^ ---------. (Please read the precautions on the back before (Fill in this page) 1225143 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs B7_V. Description of the invention (4) The aliphatic polyamine used in the anticorrosive agent 3 is a two-component epoxy resin and an aliphatic polyamine is used Resin as a hardener. The thermal expansion coefficient of this resin is 5 · 0 X 1 0 — 5 / ° C, which is better than uranium-proof and has permeability. Even small cracks can penetrate. Furthermore, this aliphatic polyamine is also effective as a filling material because it can harden in the gap caused by cracking or corrosion after soaking. In addition, the heat exchanger P may be a heat exchanger P used for an oil cooler or an air cooler in addition to the example shown in the figure. In particular, in this type of air cooler, when moisture in the atmosphere becomes condensed water and liquefied, and when oxides such as sulfurous acid gas in the atmosphere are dissolved in the condensed water, the leaked water will become acidified and electrolytic corrosion will occur. The electrolytic corrosion prevention method of the present invention can prevent such electrolytic corrosion. [Effects of the Invention] The present invention has achieved its original purpose by the above-mentioned electrolytic corrosion prevention method. That is, the contact surface between the cooling tube 1 and the end plate 2 is coated with an aliphatic polyamine-based anticorrosive 3, thereby preventing electrolytic corrosion between dissimilar metals. Therefore, in all the heat exchangers P, corrosion due to electrolytic corrosion of the joint portions between dissimilar metals can be prevented. In addition, in shell tubes or heat exchangers using seawater as cooling water, by spraying or applying an anticorrosive agent 3 on the surface of the end plate 2 connected to the cooling pipe 1 to apply an anticorrosive agent, it is possible to prevent the formation of dissimilar metals and seawater. Electrolytic corrosion of the severely corroded parts. As a result, the durability of the end plate 2 can be improved and the durability of the shell and tube heat exchanger p can be extended for a long period of time. (Please read the phonetic on the back and fill out this page)
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本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1225143 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（5 ) 再者，在電解腐蝕相當進展之熱交換器p中，於端板 2表面及腐飩部分，藉由噴塗或塗敷防蝕劑3使電解腐餓 部分含浸防蝕劑3之方法，將使鐵板因腐蝕而不能使用之 熱交換器的修理變成可能。由此，以往因鐵板2的破損而 變成不能使用而予以廢棄之熱交換器，均可予以修理而再 使用。 再者，因將脂肪族聚胺作爲防蝕劑3使用而由於具有 浸透性，故微小的龜裂內亦能浸透。又，此種脂肪族聚胺 ，由於在浸透後，能於龜裂或腐鈾引起之間隙內硬化之故 ，當作塡充材料使用亦能有效發揮功能。而且，此種脂肪 族聚胺性防蝕劑3的塗敷方法，因可選擇依噴霧之噴塗方 法，依刷塗之塗敷方法，故可極容易進行塗被作業。 如此，本發明在延長熱交換器的耐久性，能修理端板 因腐蝕以致不能使用之熱交換器等方面，產業上可發揮種 種有益的效用。 〔圖式簡單說明〕 第1圖：表示實施本發明電解腐蝕的防止方法之熱交 換器的一實施例之要部剖面圖。 第2圖：表示第1圖所示熱交換器的剖面圖。 〔符號說明〕 P 熱交換器 P 1 冷媒室 (請先閱讀背面之注*-This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 1225143 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) Furthermore, the heat exchange has progressed considerably in electrolytic corrosion In the device p, the method of spraying or coating the corrosion inhibitor 3 on the surface of the end plate 2 and the corroded part to impregnate the corrosion inhibitor 3 with electrolytic corrosion will repair the heat exchanger that the iron plate cannot be used due to corrosion. Become possible. As a result, the heat exchangers that have been rendered useless due to damage to the iron plate 2 can be repaired and reused. In addition, since the aliphatic polyamine is used as the anticorrosive agent 3, since it is permeable, it is possible to permeate even within a minute crack. In addition, this kind of aliphatic polyamine can harden in the gap caused by cracking or rotten uranium after soaking, and it can also effectively function as a filling material. In addition, since the application method of the aliphatic polyamine-based anticorrosive agent 3 can be selected by a spraying method by spraying and a brushing method by coating, the coating operation can be performed very easily. In this way, the present invention can exert various beneficial effects in the industry in terms of extending the durability of the heat exchanger and repairing the heat exchanger whose end plate is unusable due to corrosion. [Brief Description of the Drawings] Fig. 1: A sectional view of a main part showing an embodiment of a heat exchanger for carrying out the method for preventing electrolytic corrosion of the present invention. Fig. 2: A cross-sectional view showing the heat exchanger shown in Fig. 1. [Symbol] P heat exchanger P 1 Refrigerant compartment (Please read the note on the back *-
填寫本頁) 訂---------線j 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公髮） -8- 1225143 A7 _B7 五、發明說明) 經濟部智慧財產局員工消費合作社印製 1 冷却管 2 端板 3 防蝕劑 4 殼 5 冷媒進料口 6 冷媒出料口 7 障板 8 給水口 9 排水口 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -9 -(Fill in this page) Order --------- line j This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 issued) -8- 1225143 A7 _B7 V. Description of the invention) Intellectual property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperatives 1 Cooling tube 2 End plate 3 Corrosion inhibitor 4 Shell 5 Refrigerant inlet 6 Refrigerant outlet 7 Baffle 8 Water inlet 9 Drain outlet This paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -9-