JPS63216956A - Production of heat-transfer tube of multi-tubular evaporator and finned plate of plate evaporator - Google Patents
Production of heat-transfer tube of multi-tubular evaporator and finned plate of plate evaporatorInfo
- Publication number
- JPS63216956A JPS63216956A JP62051002A JP5100287A JPS63216956A JP S63216956 A JPS63216956 A JP S63216956A JP 62051002 A JP62051002 A JP 62051002A JP 5100287 A JP5100287 A JP 5100287A JP S63216956 A JPS63216956 A JP S63216956A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- tube
- plasma
- heat exchanger
- heat
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000012546 transfer Methods 0.000 title abstract description 19
- 238000007750 plasma spraying Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 229910001069 Ti alloy Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000011261 inert gas Substances 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- 238000007751 thermal spraying Methods 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004154 testing of material Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、管外蒸発伝達率または平面蒸発伝達率が、そ
れぞれ飛躍的に高められた多管式蒸発器の伝熱管および
プレート式蒸発器のフィンプレートの製造方法に関する
。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a heat exchanger tube of a multi-tube evaporator and a plate-type evaporator, each of which has a dramatically increased extra-tube evaporation transfer coefficient or planar evaporation transfer coefficient, respectively. The present invention relates to a method for manufacturing a fin plate.
［従来の技術］
多管式蒸発器およびプレート式蒸発器は、熱交換器や蒸
発器等に広く実用されている。ところで、省エネルギー
、新エネルギー開発等の見地から、多管式蒸発器の伝熱
管およびプレート式蒸発器のフィンプレートに対する性
能向上の要求は一段と高まっている。[Prior Art] Multi-tube evaporators and plate evaporators are widely used in heat exchangers, evaporators, and the like. Incidentally, from the viewpoint of energy saving, new energy development, etc., demands for improved performance of heat transfer tubes of multi-tube evaporators and fin plates of plate evaporators are increasing.
この要求に応するため、第６図に示すように、管体の外
周に形成されるフィン１１を該フィンの先端側が肉盛さ
れていてその肉厚がフィンの根元側より厚い形状の被膜
１２を形成した伝熱管１および管体の外周に形成された
フィンの表面に、該フィンの立上り壁に対して３０〜６
０度の傾斜角度から金属粉末を大気中でプラズマ溶射し
、前記フィンの先端部側壁に肉盛りをする伝熱管１の製
造方法が提案されている。In order to meet this requirement, as shown in FIG. 6, the fins 11 formed on the outer periphery of the tube body are coated with a coating 12 which is thicker on the tip side of the fin and thicker than the base side of the fin. 30 to 6 on the surface of the fins formed on the outer periphery of the heat exchanger tube 1 and the tube body.
A method of manufacturing the heat exchanger tube 1 has been proposed in which metal powder is plasma sprayed in the atmosphere at an inclination angle of 0 degrees to build up the side walls of the tips of the fins.
これらは、いわゆるローフイン型伝熱管にプラズマ溶射
法によって所定の肉盛り加工をすることに関連する技術
であるが、伝熱有効面積の拡大と外周面における気泡発
生個数の増大を目的とするものである。These are technologies related to applying a predetermined build-up process to so-called loaf-in type heat transfer tubes by plasma spraying, and their purpose is to expand the effective heat transfer area and increase the number of bubbles generated on the outer circumferential surface. be.
ここで、外周面における気泡発生個数の増大について詳
しく述べる。伝熱管およびフィンプレートの外周には通
常液体を流して熱除去を行なっているが、この場合、管
外蒸発熱伝達は管外周面における気泡の発生個数によっ
て著しく影響される。したがって、伝熱管の性能を高め
るためには、伝達管外表面において、気泡をいかに一様
に、多く、連続して発生させるかということが重要な課
題となる。Here, the increase in the number of bubbles generated on the outer peripheral surface will be described in detail. Usually, heat is removed by flowing a liquid around the outer periphery of the heat exchanger tube and fin plate, but in this case, the evaporative heat transfer outside the tube is significantly affected by the number of bubbles generated on the outer periphery of the tube. Therefore, in order to improve the performance of a heat transfer tube, it is important to determine how uniformly, in large numbers, and continuously bubbles are generated on the outer surface of the transfer tube.
この課題を達成するためには■伝熱面のキャビティ半径
を適切に制御して、気泡核を増大し、かつ■キャビティ
を奥広とし、気泡発生を安定化する必要があることが知
られている。It is known that in order to achieve this goal, it is necessary to ■ appropriately control the cavity radius of the heat transfer surface to increase the number of bubble nuclei, and ■ make the cavity deep and wide to stabilize the generation of bubbles. There is.
なお、プレート式蒸発器のフィンプレートについても上
記の伝熱管と同様である。Note that the fin plates of the plate type evaporator are also similar to the heat exchanger tubes described above.
［発明が解決しようとする問題点］
上記従来技術は、大気中でのプラズマ溶射による伝熱管
の製造に関するものであり、プラズマ溶射工程における
被膜等の酸化を配慮しておらず、次のような問題を有し
ている。[Problems to be Solved by the Invention] The above-mentioned conventional technology relates to the manufacture of heat transfer tubes by plasma spraying in the atmosphere, and does not take into account oxidation of the coating etc. in the plasma spraying process, and has the following problems. I have a problem.
（１）母材に対する被膜の密着強度が低下し、剥離しや
すく、耐久性が劣ること。(1) The adhesion strength of the coating to the base material is reduced, it is easy to peel off, and the durability is poor.
（２）被膜中に酸化物が混入、介在するため、熱伝導性
が劣化すること。(2) Thermal conductivity deteriorates because oxides are mixed or present in the coating.
（３）活性金属を肉盛りする場合、上記（１） 、 （
２）の問題が顕著となるので、活性金属を溶射材として
使用できないこと。(3) When overlaying active metal, the above (1), (
2) Active metals cannot be used as thermal spraying materials because the problem of 2) becomes significant.
［問題点を解決するための手段］
上記問題点は、プラズマ溶射加工されている伝熱管およ
びフィンプレートのフィン部からプラズマガンまでの空
間を無酸化雰囲気に保ち、該空間からプラズマ溶射に伴
ない発生する不要物を常に吸引除去しながらプラズマ溶
射加工する多管式蒸発器の伝熱管およびプレート式蒸発
器のフィンプレートの製造法により、解決される。[Means for solving the problem] The above problem is solved by keeping the space from the fin part of the heat exchanger tube and fin plate being subjected to plasma spray processing to the plasma gun in a non-oxidizing atmosphere, and from which plasma spraying is carried out. This problem is solved by a method for manufacturing the heat transfer tubes of a multi-tube evaporator and the fin plates of a plate evaporator, which are processed by plasma spraying while constantly suctioning and removing generated waste materials.
なお、伝熱管およびフィンプレートの加工中の部分以外
の部分の雰囲気は酸化雰囲気であっても何ら問題はない
。Note that there is no problem even if the atmosphere of the heat exchanger tube and the fin plate other than the parts being processed is an oxidizing atmosphere.
［実施例］
ＩＬ里ユ
第１図を用いて、実施例１を説明する。伝導管を正圧に
保たれた無酸化雰囲気のチャンバー内でプラズマ溶射す
るものである。[Example] Example 1 will be described with reference to FIG. 1. Plasma spraying is carried out in a chamber with a non-oxidizing atmosphere where the conduction tube is kept under positive pressure.
被加工される伝導管１は管保持具３を通ってチャンバー
４に送られる。チャンバー４内には、プラズマガン２に
より、溶射に伴って不活性ガスが注入される。本実施例
では伝導管外面法線に対し３０〜６０°傾けて配置した
２基のプラズマガン２を用い、アルゴンガス等の不活性
ガス流量ＶＩ、及びｖＩ２をともに１０〜１５０ ＳＬ
Ｍにした。The conduction tube 1 to be processed is sent to a chamber 4 through a tube holder 3. Inert gas is injected into the chamber 4 by the plasma gun 2 during thermal spraying. In this example, two plasma guns 2 arranged at an angle of 30 to 60 degrees with respect to the normal to the outer surface of the conduction tube are used, and the inert gas flow rate VI and vI2 such as argon gas are both 10 to 150 SL.
I made it M.
この不活性ガスの大部分は、排気ファン６により、フィ
ルタ５を通過する。これにより、溶射時に発生するヒエ
ームや粉末の浮遊物をフィルタ一方向へ素早く除去し、
回収できるので、溶射点近傍を常に清浄に保つことがで
きる。Most of this inert gas is passed through the filter 5 by the exhaust fan 6. This quickly removes suspended particles of heat and powder generated during thermal spraying in one direction of the filter.
Since it can be recovered, the vicinity of the thermal spraying point can always be kept clean.
不活性ガスは、コントロールバルブ７を制御することに
より、大気への放出とチャンバー４への戻し、循環とを
調整できる。本実施例では不活性ガスの大気への放出流
量ＶＯ，をＯ〜２９０ ＳＬＭとし、不活性ガスのチャ
ンバーへの戻し、循環流量ＶＩ３を１０〜３００ ＳＬ
Ｍとした。By controlling the control valve 7, the release of the inert gas to the atmosphere, return to the chamber 4, and circulation can be adjusted. In this example, the flow rate VO of the inert gas released to the atmosphere is set to 0~290 SLM, and the flow rate VI3 of the inert gas returned to the chamber and circulated is set to 10~300 SL.
It was set as M.
したがって、大気放出流量■ｏｌをプラズマガンからの
注入量Ｖ■（＋ＶＩｘより少すくスることにより、チャ
ンバー４内を不活性ガスで正圧とし、無酸化雰囲気とす
ることができる。Therefore, by setting the atmospheric discharge flow rate ■ol to be slightly smaller than the injection amount V■(+VIx) from the plasma gun, the inside of the chamber 4 can be made to have a positive pressure with an inert gas and a non-oxidizing atmosphere can be created.
また、チャンバー４内が正圧であるから不活性ガスの一
部は管保持具３と伝熱管１の間の隙間から大気中へ漏れ
るので、大気のチャンバー４内への侵入を防止している
。本実施例ではこの漏れ流量ＶＯ２、ＶＯ５を１〜５０
ＳＬＭとした。管保持具３と伝熱管１の間の隙間をい
わば不活性ガスのカーテンで連続シールするエア・タイ
ト構造であるため、被加工品１のチャンバー４への送入
およびチャンバーからの送出を容易にできる。Furthermore, since the inside of the chamber 4 is under positive pressure, a portion of the inert gas leaks into the atmosphere from the gap between the tube holder 3 and the heat transfer tube 1, thereby preventing the atmosphere from entering the chamber 4. . In this embodiment, the leakage flow rates VO2 and VO5 are set to 1 to 50.
It was named SLM. Since it has an air-tight structure in which the gap between the tube holder 3 and the heat transfer tube 1 is continuously sealed with a curtain of inert gas, it is easy to feed the workpiece 1 into and out of the chamber 4. can.
衷ｍ（辻ユ
第２図を用いて、実施例２を説明する。まず、チャンバ
ー４内を真空ポンプ８で排気する。被加工される伝導管
１は、アルゴンガス等の不活性ガスが流入され、大気側
へ流出するエア・タイトの補助チャンバー１０を経て、
チャンバー４内へ送入され、同様出口側補助チャンバー
１０を経て、チャンバー４外へ送出される。Embodiment 2 will be explained using Figure 2.First, the inside of the chamber 4 is evacuated by the vacuum pump 8.The conduction pipe 1 to be processed is filled with an inert gas such as argon gas. After passing through the air-tight auxiliary chamber 10, which flows out to the atmosphere,
It is sent into the chamber 4, and similarly sent out of the chamber 4 through the outlet side auxiliary chamber 10.
負圧に保たれているチャンバー４内へ大気が侵入するの
を防止するためである。ここで、補助チャンバー１０の
大気側およびチャンバー側出入口にスリーブを設けて、
その内径ｏＩ。This is to prevent atmospheric air from entering the chamber 4 which is maintained at negative pressure. Here, sleeves are provided at the atmosphere side and chamber side entrances and exits of the auxiliary chamber 10,
Its inner diameter oI.
０□、０．．０．、を調整することにより、アルゴンガ
スの流れに対するコンダクタンスを調節でき、アルゴン
ガスの大気中への放出量■０□およびチャンバー４−へ
の流入量ＶＩＩを調節できる。0□, 0. ．． 0. By adjusting , the conductance with respect to the flow of argon gas can be adjusted, and the amount of argon gas released into the atmosphere ■0□ and the amount of inflow VII into the chamber 4- can be adjusted.
チャンバー４には伝熱管の法線に３０〜６０°傾けて２
基のプラズマガンが配置され、溶射に伴って、アルゴン
ガス等の不活性ガスが注入される。このガスはフィルタ
ー５を通過し、浄化され、一部はコントロールバルブＣ
ｖ、を介し、真空ポンプ８により排気され、残部はコン
トロールバルブＣＶ ２を介し、循環用フィン９により
、再びチャンバー４へ戻される。In chamber 4, there are two
A base plasma gun is installed, and inert gas such as argon gas is injected during thermal spraying. This gas passes through the filter 5 and is purified, and a portion of the gas passes through the control valve C.
v, and is evacuated by the vacuum pump 8, and the remainder is returned to the chamber 4 via the control valve CV2 and the circulation fin 9.
実施例１および２において、均一にプラズマ溶射するた
め、伝熱管およびフィンプレートはチャンバー外部から
回転と送りとを与えられるが、管およびフィンプレート
端部をあらかじめ加工することによって、各々の管およ
びフィンプレート間の接続が可能となり連続して被加工
材供給、溶射が実現できる。In Examples 1 and 2, in order to perform plasma spraying uniformly, the heat transfer tubes and fin plates are rotated and fed from outside the chamber, but by processing the ends of the tubes and fin plates in advance, each tube and fin plate Connection between plates is possible, allowing continuous supply of workpiece materials and thermal spraying.
以下、実施例１および実施例２により製造された被膜の
特性を説明する。The characteristics of the coatings produced in Example 1 and Example 2 will be described below.
母材と被膜との密着力を測定した。材料試験用の治具を
それぞれ母材および被膜と接着剤を用いて接着した後、
材料試験機で密着力を測定した。第３図は母材と被膜と
の密着力の測定結果を示す。本実施例は密着力が約７０
０ｋｇ／ｃｍ２ と比較例の３００ ｋｇ／ ｃｍ”前
後の値に比べはるかに高いことがわかる。なお、強度の
向上は７００ ｋｇ／ ｃｍ’止りであるが、これは測
定用の接着剤が７００ ｋｇ／ ｃＩ１１’の能力であ
るため、これ以上の強度があっても、そこで破断してし
まうためである。より強力な接着材が出現すれば、さら
にに高い密着力であることが確認できる。The adhesion between the base material and the coating was measured. After bonding the material testing jig to the base material and coating using adhesive,
Adhesion was measured using a material testing machine. FIG. 3 shows the measurement results of the adhesion between the base material and the coating. In this example, the adhesion strength is approximately 70
0 kg/cm2, which is much higher than the value of around 300 kg/cm' in the comparative example.The improvement in strength is only 700 kg/cm', but this is because the adhesive used for measurement was 700 kg. / cI11', so even if it had a strength higher than this, it would break at that point.If a stronger adhesive material were to emerge, it would be confirmed that the adhesive strength would be even higher.
次に、放熱効果を測定した。その結果を第４図に示す。Next, the heat dissipation effect was measured. The results are shown in FIG.
図中■は本実施例により製造した伝熱管（母材はチタン
、溶射材はチタン）、■は通常の大気中溶射法により製
造した伝熱管（母材はチタン、溶射材はアルミニウム）
、モして■は機械加工により所定の奥床のキャビティを
設けた伝熱管であり、ざらに■は比較のための表面平滑
な伝熱管である。In the figure, ■ is a heat exchanger tube manufactured according to this example (base material is titanium, sprayed material is titanium), ■ is a heat exchanger tube manufactured by normal atmospheric spraying method (base material is titanium, sprayed material is aluminum)
, Moto ■ is a heat exchanger tube with a predetermined depth cavity provided by machining, and Rough ■ is a heat exchanger tube with a smooth surface for comparison.
■は、機械加工のため均一であるが、奥床のキャビティ
の数が限られその数だけ核沸騰するため、その分、■に
比べて放熱効率が良くなる。(2) is uniform due to mechanical processing, but the number of cavities in the back floor is limited and nucleate boiling occurs for that number, so the heat dissipation efficiency is improved compared to (2).
■は、■の奥床キャビティの他にキャビティを形成する
奥床空隙の内側やローフイン管の口を一定狭口としてい
る溶射頭まで細かいキャビティが形成されるため■に比
べ格段に放熱効率が良くなる。■ In addition to the back floor cavity in ■, a fine cavity is formed inside the back floor gap that forms the cavity and up to the spray head where the mouth of the loaf-in pipe is kept narrow, so the heat dissipation efficiency is much better than in ■. Become.
■は■とほぼ同じ原理であるが、母材と同じチタンを無
酸化で溶射するため熱伝導が■に比べて非常に改善でき
、さらに空隙率も制御でき、また均一で最適な奥床空間
を形成できるため、第４図のように非常に性能が良くな
る。■ is almost the same principle as ■, but since titanium, which is the same as the base material, is sprayed without oxidation, heat conduction can be greatly improved compared to ■, and the porosity can also be controlled, and a uniform and optimal deep floor space can be created. As shown in FIG. 4, the performance is very good.
プレート式蒸発器のフィンプレートの結果も、上記の多
管式管外蒸発型伝熱管とほぼ同じ結果がでている。The results for the fin plate of the plate type evaporator are almost the same as for the above-mentioned multi-tube type extra-tube evaporation type heat exchanger tube.
フィン先端側に肉盛部を形成し、フィン間隔を狭め、気
泡発生の容易な開口間隔にするとともに、その下方部に
奥床のキャビティを設け、気泡発生を安定化している。A built-up part is formed on the fin tip side to narrow the fin spacing and create an opening interval that facilitates bubble generation, and a deep cavity is provided below it to stabilize bubble generation.
さらに第５図から肉盛部は不要物の巻込みのない優れた
被膜であることがわかる。なお、溶射材はチタンである
。Furthermore, from FIG. 5, it can be seen that the built-up portion is an excellent coating without any unnecessary material being rolled up. Note that the thermal spray material is titanium.
［効 果］
プラズマ溶射加工されている伝熱管およびフィンプレー
トのフィン部からプラズマガンまでの空間を無酸化雰囲
気に保っているため、被膜中への酸化物の巻込み、被膜
の酸化がほとんどなく、密着強度が大きく耐久性があり
かつ放熱効率の秀れた被膜が得られる。さらに、チタン
、アルミニウム又はこれらの合金等の活性金属を溶射材
として用いることが可能である。[Effects] Since the space from the fins of the plasma sprayed heat exchanger tube and fin plate to the plasma gun is maintained in an oxidation-free atmosphere, there is almost no entrainment of oxides into the coating or oxidation of the coating. A coating with high adhesion strength, durability, and excellent heat dissipation efficiency can be obtained. Furthermore, active metals such as titanium, aluminum or alloys thereof can be used as spray materials.
また、プラズマ溶射に伴ない発生する不要物を吸引除去
しているため、被膜中への不要物の巻込みがほとんどな
く、密着強度が大きく、耐久性があり、かつ放熱効率の
秀れた被膜が得られる。In addition, since the unnecessary materials generated during plasma spraying are removed by suction, there is almost no unnecessary material caught in the coating, resulting in a coating with high adhesion strength, durability, and excellent heat dissipation efficiency. is obtained.
第１図、第２図は本発明の実施例を表わす図、第３図は
本実施例により製造された被膜等の密着力を表わす図、
第４図は本実施例により大写真、第６図は伝熱管のフィ
ン部のプラズマ溶射法を示す図である。
１・・・伝熱管（被加工品）２・・・プラズマガン３・
・・管保持具 ４・・・チャンバー５・・・フ
ィルター ６・−・排気ファン７・・・コントロ
ール・バルブ
８・・・真空ポンプ ９・・・循環用ファン１０
・・・補助チャンバー １１・・・フィン部１２・・
・被膜
第１図
ＶＯ＋
第２図
第３図
皮膜厚さ体面）
第４図
然 ５ＦＬ 遠 （Ｗ／イ）
第５図FIG. 1 and FIG. 2 are diagrams showing examples of the present invention, and FIG. 3 is a diagram showing the adhesion strength of the coating etc. manufactured by this example.
FIG. 4 is a large-scale photograph according to this embodiment, and FIG. 6 is a diagram showing the plasma spraying method of the fin portion of the heat exchanger tube. 1... Heat exchanger tube (workpiece) 2... Plasma gun 3.
...Pipe holder 4...Chamber 5...Filter 6...Exhaust fan 7...Control valve 8...Vacuum pump 9...Circulation fan 10
...Auxiliary chamber 11...Fin part 12...
・Coating Figure 1 VO+ Figure 2 Figure 3 Film thickness Body surface) Figure 4 Natural 5FL Far (W/A) Figure 5
Claims (1)
レートのフィン部からプラズマガンまでの空間を無酸素
雰囲気に保ち、該空間からプラズマ溶射に伴ない発生す
る不要物を吸引除去しながらプラズマ溶射加工する多管
式蒸発器の伝熱管およびプレート式蒸発器のフィンプレ
ートの製造方法。 ２、チタン、チタン合金、アルミニウムまたはアルミウ
ム合金もしくはステンレス鋼をプラズマ溶射により肉盛
り加工することを特徴とする特許請求の範囲第１項に記
載の多管式蒸発器の伝熱管およびプレート式蒸発器のフ
ィンプレートの製造方法。 ３、プラズマ溶射加工される伝熱管またはフィンプレー
トを無酸化雰囲気に保たれた容器中でプラズマ溶射加工
することを特徴とする特許請求の範囲第１項または第２
項に記載の多管式蒸発器の伝熱管およびプレート式蒸発
器のフィンプレートの製造方法。 ４、プラズマ溶射に伴ない発生する不要物の吸引除去を
フィルターおよびファンを用いて行うことを特徴とする
特許請求の範囲第１項、第２項または第３項に記載の多
管式蒸発器の伝熱管およびプレート式蒸発器のフィンプ レートの製造方法。[Claims] 1. Maintain an oxygen-free atmosphere in the space between the heat exchanger tube and the fin portion of the fin plate being subjected to plasma spraying and the plasma gun, and remove unnecessary substances generated during plasma spraying from the space by suctioning. A method for manufacturing heat exchanger tubes for multi-tube evaporators and fin plates for plate-type evaporators using plasma spray processing. 2. The heat exchanger tube and plate type evaporator of the multi-tube evaporator according to claim 1, characterized in that titanium, titanium alloy, aluminum, aluminum alloy, or stainless steel is overlaid by plasma spraying. fin plate manufacturing method. 3. Claims 1 or 2, characterized in that the heat exchanger tube or fin plate to be plasma sprayed is plasma sprayed in a container maintained in a non-oxidizing atmosphere.
A method for manufacturing a heat exchanger tube for a multi-tubular evaporator and a fin plate for a plate-type evaporator as described in 2. 4. The multi-tube evaporator according to claim 1, 2 or 3, wherein the suction and removal of unnecessary substances generated in association with plasma spraying is performed using a filter and a fan. Method for manufacturing heat exchanger tubes and fin plates for plate-type evaporators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62051002A JPS63216956A (en) | 1987-03-05 | 1987-03-05 | Production of heat-transfer tube of multi-tubular evaporator and finned plate of plate evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62051002A JPS63216956A (en) | 1987-03-05 | 1987-03-05 | Production of heat-transfer tube of multi-tubular evaporator and finned plate of plate evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63216956A true JPS63216956A (en) | 1988-09-09 |
Family
ID=12874568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62051002A Pending JPS63216956A (en) | 1987-03-05 | 1987-03-05 | Production of heat-transfer tube of multi-tubular evaporator and finned plate of plate evaporator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63216956A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033031A1 (en) * | 1997-01-29 | 1998-07-30 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Heat exchanger tube, and method for the production of same |
| EP1154217A3 (en) * | 2000-05-09 | 2005-10-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for transporting liquids by using capillary forces and process for manufacturing a capillary structure layer for such a device |
| CN102226663A (en) * | 2011-04-21 | 2011-10-26 | 上海板换机械设备有限公司 | Abrasion-resistant flow guide device |
-
1987
- 1987-03-05 JP JP62051002A patent/JPS63216956A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033031A1 (en) * | 1997-01-29 | 1998-07-30 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Heat exchanger tube, and method for the production of same |
| EP1154217A3 (en) * | 2000-05-09 | 2005-10-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for transporting liquids by using capillary forces and process for manufacturing a capillary structure layer for such a device |
| CN102226663A (en) * | 2011-04-21 | 2011-10-26 | 上海板换机械设备有限公司 | Abrasion-resistant flow guide device |
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