KR100380289B1 - fixed structure for nozzle sleeve - Google Patents
fixed structure for nozzle sleeve Download PDFInfo
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- KR100380289B1 KR100380289B1 KR10-2001-0023041A KR20010023041A KR100380289B1 KR 100380289 B1 KR100380289 B1 KR 100380289B1 KR 20010023041 A KR20010023041 A KR 20010023041A KR 100380289 B1 KR100380289 B1 KR 100380289B1
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- Prior art keywords
- sleeve
- nozzle
- gasket
- titanium
- cylinder
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Classifications
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- 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
- F28D7/10—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 arranged one within the other, e.g. concentrically
- F28D7/103—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 arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
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- 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
- F28D7/16—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 arranged in parallel spaced relation
- F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
본 발명은 열교환기나 반응기 또는 압력용기 등의 기통을 외피는 강판으로 만들고 그 내면에는 부식을 방지하기 위해 티타늄등의 내부식성재로 만든 판재를 접합시켜 제작함에 있어서, 유체의 유출입을 위해 기통에 부설되는 노즐들의 내면에 끼워 결합하는 티타늄등의 내부식성재로 만든 슬리이브를 고정하기 위한 고정구조에 관한 것으로서,The present invention is made of a steel plate to cover the cylinder of the heat exchanger, reactor or pressure vessel, etc. in the inner surface bonded to the plate made of a corrosion-resistant material such as titanium in order to prevent corrosion, it is placed in the cylinder for the flow of fluid The present invention relates to a fixing structure for fixing a sleeve made of a corrosion resistant material such as titanium, which is inserted into an inner surface of nozzles to be bonded.
슬리이브의 상단은 상기 노즐의 상단 외측으로 노출되게 하고, 노출된 상단의 외면에는 원판링형상으로 된 티타늄등으로 되는 가스킷을 결합하며, 이들의 접속부분인 가스킷의 내주면과 상기 슬리이브의 상단 외주면을 용접 고정하여, 이 용접부위가 상기 노즐의 상단 외측부에 위치하게 구성한 것이다.The upper end of the sleeve is exposed to the outside of the upper end of the nozzle, the outer surface of the exposed upper end is coupled to the gasket made of titanium, etc. in the shape of a disc ring, the inner peripheral surface of the gasket which is their connection portion and the upper outer peripheral surface of the sleeve Is welded and this welding part is comprised so that it may be located in the upper outer side part of the said nozzle.
Description
본 발명은 열교환기나 반응기 또는 압력용기 등과 같이 기기의 기통을 외피는 강판으로 만들고 그 내면에는 부식을 방지하기 위해 내부식성인 티타늄(Ti)등으로 되는 판재를 접합시켜 제작되는 클래드(clad)기기에 있어서, 유체의 유출입을위해 기통에 부설되는 노즐들의 내면에 끼워 결합하는 내부식성의 티타늄등으로 만든 슬리이브를 고정하기 위한 고정구조에 관한 것이다.The present invention is made of a cladding device manufactured by joining a plate made of titanium (Ti), etc., which is corrosion-resistant to prevent corrosion, on the inner surface of the steel plate of the device, such as a heat exchanger, a reactor or a pressure vessel. The present invention relates to a fixing structure for fixing a sleeve made of titanium, which is corrosion-resistant, which fits and fits into an inner surface of nozzles attached to a cylinder for inflow and outflow of a fluid.
도 1에는 폐온수로 부터 폐열을 회수하는데 사용되는 일반적인 열교환기의 일예가 도시되어 있는데, 이러한 열교환기나 반응기 또는 압력용기 등은 그 사용처에 따라 그 크기가 각기 다르기 때문에 통상 일정한 규격으로 대량 제작되는 것이 아니라 주문에 따라 제작되는 것으로서, 상기 열교환기는 기통(1)내에 다수의 튜브(2)들을 일정간격으로 병렬 배관하여 이들 튜브내로는 정수를 통과시키고 튜브들 사이로는 폐온수를 순환시켜 주므로, 이 과정에서 정수와 폐온수가 열교환토록 구성되는 것이다.Figure 1 shows an example of a general heat exchanger used to recover the waste heat from the waste water, the heat exchanger, reactor or pressure vessel, etc., because the size is different depending on the intended use is usually produced in large quantities to a certain standard Instead, as manufactured according to the order, the heat exchanger pipes a plurality of tubes (2) in the cylinder (1) in parallel at regular intervals to pass the purified water through these tubes and to circulate the waste hot water between the tubes, this process The purified water and the waste hot water are configured to exchange heat.
그런데, 이러한 열교환기는 장기 사용을 위해 모든 부분을 쉽게 산화되지 않는 티타늄등과 같은 고품질의 재질로 제작하는 것이 바람직 하지만 티타늄등은 그 가격이 매우 비싸기 때문에, 열교환기의 구조상 기통(1)내에 장착되어 수시로 교체할 수 없고 또 그 기능상 내외면이 유체와 접촉하게 되는 다수의 튜브(2)들이나 이들 튜브의 양단이 관통 배관되는 양측의 시트(3)(3')들은 어쩔 수 없지만 상대적으로 두께가 두꺼운 판재로 제작해야 되는 상기 기통까지 티타늄등으로 제작하면 가격이 매우 높아져 경제성을 상실하게 된다.However, such a heat exchanger is preferably made of a high quality material such as titanium that does not easily oxidize all parts for long-term use, but since titanium is very expensive, the heat exchanger is mounted in the cylinder 1 of the heat exchanger. Many tubes 2, which are not replaceable from time to time and whose functional inner and outer surfaces come into contact with the fluid, or the sheets 3 and 3 'on either side through which both ends of the tubes are inevitably forced, are relatively thick. If the cylinder to be made of a plate made of titanium, etc., the price is very high, and the economics are lost.
따라서, 종래에는 도 2에서 보는 바와같이 가격이 저렴한 강판등으로 되는 외피재(1a)의 내면에, 이 외피재보다 두께가 얇은 티타늄등으로 되는 내피재(1b)를 접합시켜 기통(1)을 제작하였다.Therefore, conventionally, as shown in Fig. 2, the inner surface of the outer shell material 1a made of steel sheet or the like, which is inexpensive, is bonded to the inner shell material 1b made of titanium or the like, which is thinner than the outer shell material, and thus the cylinder 1 is connected. Produced.
그러나, 기통(1)의 구조상 외피재(1a)는 물론 내피재(1b)도 이음부가 없이단일체로 만들 수 없기 때문에 여러부분으로 분리 제작하여 결합하고, 또 유체의 유출입을 위해 상기 기통의 적정위치에 부설되는 노즐(4)들의 각 내면에는 티타늄등으로 제작한 슬리이브(5)를 결합한 다음 그 상하단을 상기 노즐의 상하부내에서 상하 가스킷(6)(6')들의 각 내단들에 각각 용접하여 고정하였다.However, since the outer shell material 1a as well as the inner skin material 1b cannot be made into a single body without a seam in the structure of the cylinder 1, it is possible to separate and manufacture the parts in several parts, and also to position the cylinder for the inflow and outflow of the fluid. Each inner surface of the nozzles 4 installed in the nozzle 4 is coupled to a sleeve 5 made of titanium or the like, and then the upper and lower ends thereof are respectively welded to respective inner ends of the upper and lower gaskets 6 and 6 'in the upper and lower parts of the nozzle. Fixed.
그런데, 사용시 기통(1)의 내면에 결합된 내피재(1b)들의 각 접합부위를 용접한 부분에서는 문제점이 별로 발생하지 않았지만 각 노즐(4)들의 내면에 결합된 슬리이브(5)와 가스킷(6)(6')들의 용접부위에서는 사용중 균열(crack)이 쉽게 발생되었는데, 이러한 현상은 도 2에서 보는 바와같이 상기 슬리이브들의 상하 용접부위(w)가 상기 노즐의 내측에 위치하고 있기 때문에 이 부위가 유체의 유출입시 화살표방향으로 작용하는 힘(f)과 열팽창에 따른 피로 현상이 복합되어 발생되었다.By the way, in the welded portion of each joint portion of the inner shell material (1b) bonded to the inner surface of the cylinder (1) in use, although the problem did not occur much, the sleeve (5) and the gasket (bonded to the inner surface of the nozzles (4) 6) (6 ') cracks were easily generated during use, which is because the upper and lower welds (w) of the sleeves are located inside the nozzle as shown in FIG. When the fluid flows in and out, the force (f) acting in the direction of the arrow and the fatigue phenomenon due to thermal expansion are generated.
따라서, 종래에는 용접부위에서 발생되는 균열부분으로 누수가 발생되어 노즐의 외피재가 쉽게 부식되므로 그 수명이 단축되었음은 물론 슬리이브와 가스킷의 접합부위가 노즐의 내측에 위치하여 용접작업이 매우 어렵기 때문에 특히 직경이 작은 노즐의 경우에는 용접불량이 빈발하여 상대적으로 제품의 신뢰도가 저하되는 등 많은 문제점들이 있었다.Therefore, in the related art, water leakage occurs due to cracks generated at the welding part, and the outer shell material of the nozzle is easily corroded, so that its life is shortened, and because the joint part of the sleeve and the gasket is located inside the nozzle, welding is very difficult. In particular, in the case of a nozzle having a small diameter, there are many problems such as poor welding and relatively low reliability of the product.
또한, 용접이 불량하게 되기 때문에 2차 가공해야 되므로 공정이 증가되었고, 이에 따른 인력과 시간의 낭비는 물론 생산성도 저하되는 등의 폐단도 있었다.In addition, because the welding is poor, the second process is required to increase the process, resulting in a waste of manpower and time, as well as a decrease in productivity.
본 발명은 상기와 같은 점들을 감안하여 발명된 것으로서, 그 목적은 그 수명 단축이 방지되며, 작업성이 양호한 슬리이브의 고정구조를 제공하는 것이다.The present invention has been invented in view of the above points, and an object thereof is to provide a fixing structure of a sleeve which is prevented from shortening its life and has good workability.
본 발명의 다른 목적은, 생산성은 물론 제품의 신뢰성이 대폭 향상되는 슬리이브의 고정구조를 제공함에 있다.Another object of the present invention is to provide a fixing structure of a sleeve in which not only productivity but also reliability of a product is greatly improved.
본 발명의 상기와 같은 목적들은, 슬리이브와 가스킷의 접속부분을 용접한 부위가 노즐의 내측부에 존재하지 않게 하여 장기간 사용하여도 용접부위에 균열이 발생하지 않게 함과 동시에 용접작업이 매우 용이하며, 생상성이 대폭 향상되는 슬리이브의 고정구조를 제공함으로써 달성된다.The above objects of the present invention, such that the welded portion of the sleeve and the gasket is not present in the inner portion of the nozzle so that the crack does not occur in the welding portion even after long-term use is very easy to weld, This is achieved by providing a fixed structure of the sleeve, which greatly improves productivity.
도 1은 일반적인 열교환기의 일부를 분리 절취하여 개략적으로 보인 측면도,1 is a side view schematically showing a part of a typical heat exchanger cut away;
도 2는 동 열교환기에 부설되는 종래 노즐의 일예를 보인 확대 단면도,2 is an enlarged cross-sectional view showing an example of a conventional nozzle installed in the heat exchanger;
도 3은 본 발명 실시예에 의한 슬리이브와 노즐의 분리 단면도,3 is an exploded cross-sectional view of the sleeve and the nozzle according to the embodiment of the present invention;
도 4는 동 슬리이브를 노즐에 결합 고정한 상태를 보인 단면도.4 is a cross-sectional view showing a state in which the sleeve is bonded to the nozzle.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 ; 기통,10; Cylinder,
20 ; 노즐,20; Nozzle,
30 ; 슬리이브,30; Sleeving,
32 ; 상단,32; Top,
40 ; 가스킷.40; Gasket.
이하, 본 발명 실시예에 의한 슬리이브의 고정구조를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the fixing structure of the sleeve according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명 실시예에 의한 슬리이브의 고정구조를 분리하여 보인 단면도 이고, 도 4는 동 결합시켜 용접 고정한 상태를 보인 단면도 이다.Figure 3 is a cross-sectional view showing the separation of the fixing structure of the sleeve according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing a state in which the copper is fixed by welding.
도면 부호 중 (10)은 열교환기등의 기통의 일부이며, 이 기통은 강판등으로 되는 외피재(11)와 티타늄등의 내부식성재로 되는 내피재(12)를 결합하여 된다.Reference numeral 10 denotes a part of a cylinder such as a heat exchanger, and the cylinder combines an outer shell 11 made of steel sheet or the like and an inner shell 12 made of corrosion resistant material such as titanium.
그리고, 상기 기통의 적정부위에는 유체가 유출입되는 노즐(20)들이 부설되며, 이 노즐의 내면에는 티타늄등의 내부식성재로 만든 슬리이브(30)가 결합된다.In addition, nozzles 20 through which fluid flows in and out are placed at appropriate portions of the cylinders, and sleeves made of corrosion resistant materials such as titanium are coupled to an inner surface of the nozzles.
상기 슬리이브는, 그 길이(l)가 노즐(20)의 길이(L)보다 길며 그 외경(r)은 상기 노즐의 내경(R)과 같게 되는 것으로서, 하부(31)는 상기 노즐의 하단부 내주면(21)과 동일한 형상으로 만곡되게 외측으로 확관시켜 성형하고, 상단(32)은 상기 노즐의 상단 외측으로 노출되게 한다.The sleeve has a length (l) longer than the length (L) of the nozzle 20 and its outer diameter (r) is equal to the inner diameter (R) of the nozzle, and the lower portion (31) is the inner peripheral surface of the lower end of the nozzle. It extends outwards and shape | molds to bend in the same shape as 21, and the upper end 32 is exposed to the outer side of the upper end of the said nozzle.
이때, 노출되는 간격(t)은 원판링형상의 상부 가스킷(40)의 두께에 비례하는것으로서, 이 가스켓은 티타늄등으로 되며 그 내경은 슬리이브(30)의 외경(r)과 같게 된다.At this time, the exposed interval t is proportional to the thickness of the upper ring gasket 40 of the disc ring shape, the gasket is made of titanium, etc., and its inner diameter is equal to the outer diameter r of the sleeve 30.
이와 같은, 상부 가스킷(40)을 노즐(20)의 상단으로 노출된 슬리이브(30)의 상단(32) 외면에 결합한 다음 이들이 서로 접속되는 내외면을 용접한다.As such, the upper gasket 40 is coupled to the outer surface of the upper end 32 of the sleeve 30 exposed to the upper end of the nozzle 20 and then welds the inner and outer surfaces to which they are connected to each other.
이렇게 하면, 용접부위(w)가 상단 외주연에 위치하게 됨과 동시에 노즐(20)의 상단 내주면과 슬리이브(30)의 상단 외주면 사이가 봉합되며, 이에 따라 이들 사이로 유체가 유입되지 않게 되어 상기 노즐의 부식이 방지된다.In this case, the welded portion (w) is positioned at the upper outer circumference and at the same time, the upper inner circumferential surface of the nozzle 20 and the upper outer circumferential surface of the sleeve 30 are sealed, so that no fluid flows therebetween so that the nozzle Corrosion is prevented.
또한, 상기 용접된 부위(w)가 노즐(20)의 상부 내측에 위치하지 않고 슬리이브(30)의 상단 외측에 위치하기 때문에, 상기 노즐을 통해 유체가 유출입될 때 화살표방향으로 발생되는 유체의 힘(p)이 상기 용접부위에 작용하지 않게 되어 장기간 사용하여도 이 부위에는 균열이 발생하지 않게 된다.In addition, since the welded portion (w) is not located inside the upper portion of the nozzle 20 but outside the upper end of the sleeve 30, the fluid generated in the direction of the arrow when the fluid flows in and out through the nozzle The force p does not act on the welded portion so that cracking does not occur in this portion even after long-term use.
한편, 슬리이브(30)의 외측으로 만곡된 하부(31)의 하단은 노즐(20)의 하단면 외주연측의 수평면에서 하부 가스킷(40')의 내단과 접속시켜 용접하면 된다.On the other hand, the lower end of the lower portion 31 curved to the outside of the sleeve 30 may be connected to the inner end of the lower gasket 40 'in the horizontal plane on the outer circumferential side of the lower end surface of the nozzle 20 to weld.
이와 같은 본 발명 실시예에 의한 슬링브의 고정구조에 의하면, 노즐의 내부에 접합하는 슬리이브와 상하의 가스킷들의 용접부위가 상기 노즐내측부가 아닌 외측에 위치하게 되므로 장기간 사용하여도 균열이 발생하지 않게 되는 특징이 있으며, 이에 따라 그 수명의 단축이 방지되는 등의 장점이 있다.According to the fixing structure of the sling according to the embodiment of the present invention, the welding portion of the sleeve and the upper and lower gaskets joined to the inside of the nozzle is located outside the nozzle, so that the crack does not occur even after long-term use. There is a feature, such that there is an advantage such that the shortening of its life is prevented.
또한, 용접부위가 노즐의 외측에 위치하기 때문에 노즐의 직경이 크고 작은 것에 구애 됨이 없이 용이하게 용접할 수 있게 되며, 이런점에 의해 용접상태도 개끗하고 양호하게 되므로 용접부위를 재가공할 필요가 업게 되어 공정이 감소됨은 물론 제품의 신뢰성도 크게 향상되는 등의 효과도 얻게 된다.In addition, since the welded portion is located outside the nozzle, the welded portion can be easily welded without having to worry about the diameter of the nozzle being large and small. As a result, the welded state is clean and satisfactory. Therefore, the welded portion needs to be reworked. In addition, the process is reduced and the reliability of the product is greatly improved.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0023041A KR100380289B1 (en) | 2001-04-27 | 2001-04-27 | fixed structure for nozzle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0023041A KR100380289B1 (en) | 2001-04-27 | 2001-04-27 | fixed structure for nozzle sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020070389A KR20020070389A (en) | 2002-09-09 |
| KR100380289B1 true KR100380289B1 (en) | 2003-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0023041A KR100380289B1 (en) | 2001-04-27 | 2001-04-27 | fixed structure for nozzle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100380289B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101108494B1 (en) | 2010-03-26 | 2012-01-31 | 문준식 | Lining attaching mathod of nozzle for press vessel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179592A (en) * | 1982-03-31 | 1983-10-20 | Kobe Steel Ltd | Method for joining nozzle of vessel made of clad steel |
| JPS60129499A (en) * | 1983-12-16 | 1985-07-10 | Mitsubishi Heavy Ind Ltd | Welding method of pressure container |
| JPH08141741A (en) * | 1994-11-15 | 1996-06-04 | Agency Of Ind Science & Technol | Manufacture of nozzle seat for copper alloy clad steel tube |
-
2001
- 2001-04-27 KR KR10-2001-0023041A patent/KR100380289B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179592A (en) * | 1982-03-31 | 1983-10-20 | Kobe Steel Ltd | Method for joining nozzle of vessel made of clad steel |
| JPS60129499A (en) * | 1983-12-16 | 1985-07-10 | Mitsubishi Heavy Ind Ltd | Welding method of pressure container |
| JPH08141741A (en) * | 1994-11-15 | 1996-06-04 | Agency Of Ind Science & Technol | Manufacture of nozzle seat for copper alloy clad steel tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101108494B1 (en) | 2010-03-26 | 2012-01-31 | 문준식 | Lining attaching mathod of nozzle for press vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020070389A (en) | 2002-09-09 |
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