JPS599187Y2 - Structure of inner pipe support fittings in double pipe steam heat exchanger - Google Patents
Structure of inner pipe support fittings in double pipe steam heat exchangerInfo
- Publication number
- JPS599187Y2 JPS599187Y2 JP1980023943U JP2394380U JPS599187Y2 JP S599187 Y2 JPS599187 Y2 JP S599187Y2 JP 1980023943 U JP1980023943 U JP 1980023943U JP 2394380 U JP2394380 U JP 2394380U JP S599187 Y2 JPS599187 Y2 JP S599187Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner tube
- outer tube
- tube
- heat exchanger
- steam
- 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.)
- Expired
Links
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
- F28D7/10—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
- F28D7/12—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 the surrounding tube being closed at one end, e.g. return type
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)
Description
【考案の詳細な説明】
技術分野
この考案は、二重管式蒸気用熱交換器における内管支持
金具の構造に関するものである。[Detailed Description of the Invention] Technical Field This invention relates to the structure of an inner tube support fitting in a double-tube steam heat exchanger.
従来技術
従来、外周囲に複数の小孔を穿設した内管を、所定の隙
間を隔てて外管内に挿入し、上記内管の小孔から外管外
へ蒸気を噴出させて、外管外を流通する流体と熱交換す
る二重管式蒸気用熱交換器は公知であり、ある種のもの
は実用化されている。Prior Art Conventionally, an inner tube with a plurality of small holes drilled around its outer circumference is inserted into an outer tube with a predetermined gap in between, and steam is jetted out of the outer tube from the small holes in the inner tube to form an outer tube. Double-pipe heat exchangers for steam that exchange heat with a fluid flowing outside are known, and some types have been put into practical use.
ところが、内管と外管との隙間には凝縮水がたまりやす
いので、外管内に停滞する凝縮水を排除して噴出蒸気分
配を均一にするために、内管の小孔の周囲を***させて
、蒸気を凝縮水の流れ方向に噴出させる特殊オリフイス
構造のものが提案されているが、小径の内管に***部を
形或するのが困難でコスト高になるという欠点があった
。However, condensed water tends to accumulate in the gap between the inner tube and the outer tube, so in order to eliminate the condensed water that stagnates inside the outer tube and make the ejected steam evenly distributed, the area around the small hole in the inner tube is raised. A special orifice structure has been proposed for ejecting steam in the flow direction of the condensed water, but this method has the disadvantage that it is difficult to form a protuberance on the small-diameter inner tube, resulting in high cost.
考案の目的
この考案は、内管と外管との隙間を保持する支持金具に
、噴出蒸気分配を均一にするためのデフレクター機能を
兼ね備えさせて、製作の容易化、コストの低減化・部品
点数の減少化を図るものである。Purpose of the invention This invention combines the support fitting that maintains the gap between the inner tube and the outer tube with a deflector function to make the distribution of ejected steam uniform, thereby simplifying manufacturing, reducing costs, and reducing the number of parts. The aim is to reduce the number of
考案の要旨
この考案は、内管の外面に嵌合固着される筒部と、該筒
部の一端部から、外管の出口側へ向って、内管の小孔の
上方のみをカバーしながら斜めに立上り、立上り端が外
管の内面に当接するデフレクタ部とで戊る支持金具を設
け、該支持金具で、内管と外管との所定の隙間を保持す
ると同時に、内管の小孔からの蒸気を外管の出口側へ向
って噴出させるようにしたものである。Summary of the invention This invention consists of a cylindrical part that is fitted and fixed to the outer surface of the inner tube, and a cylindrical part that extends from one end of the cylindrical part toward the outlet side of the outer tube while covering only the upper part of the small hole in the inner tube. A support fitting is provided that stands obliquely and has a deflector portion whose rising end abuts the inner surface of the outer tube.The support fitting maintains a predetermined gap between the inner tube and the outer tube, and at the same time closes the small hole in the inner tube. The steam from the outer tube is blown out toward the outlet side of the outer tube.
実施例
第１図に示すように、二重管式蒸気用熱交換器は、密閉
大型箱状の熱交換器本体１の一側部に、ドレン排水口２
を有する出口室３と、蒸気導入口４を有する入口室５と
を連設すると共に、該熱交換器本体１には、低温側流体
入口と出口（いずれも図示せず。Embodiment As shown in FIG. 1, a double-pipe steam heat exchanger has a drain outlet 2 on one side of a heat exchanger body 1 in the shape of a large sealed box.
An outlet chamber 3 having a steam inlet 4 and an inlet chamber 5 having a steam inlet 4 are connected to each other.
）とを設けている。上記熱交換器本体１内には、一定の
間隔で多数本の外管６・・・・・・６を配列して、各外
管６・・・・・・６の閉塞した一端部６ａ・・・・・・
６ａは、熱交換器本体１の内壁１ａにそれぞれ差し込ん
で支持すると共に、開放した他端部６ｂ・・・・・・６
ｂは、上記出口室３の熱交換器本体１側の仕切壁３ａに
それぞれ差し込み、溶接等で固定支持して、該他端部６
ｂ・・・・・・６ｂを出口室３に開口させる。). Inside the heat exchanger main body 1, a large number of outer tubes 6...6 are arranged at regular intervals, and each outer tube 6...6 has a closed end 6a.・・・・・・
6a is inserted into and supported by the inner wall 1a of the heat exchanger main body 1, and the other end 6b is open.
b is inserted into the partition wall 3a of the outlet chamber 3 on the side of the heat exchanger body 1, fixedly supported by welding, etc., and the other end 6
b... 6b is opened to the outlet chamber 3.
上記各外管６・・・・・・６内には、外周囲に複数の小
孔７・・・・・・７（第２図以下参照）を穿設した内管
８を、支持金具９・・・・・・９によって所定の隙間Ｓ
を隔てて挿入し、内管８の各一端部８ａは、外管６の一
端部６ａとの間に空間を隔て、小孔を設けて閉塞すると
共に、開放した他端部８ｂ・・・・・・８ｂは、出口室
３を挿通させて入口室５の出口室３側の仕切壁５ａにそ
れぞれ差し込み、溶接等で固定支持して、該他端部８ｂ
・・・・・・８ｂを入口室５に開口させる。Inside each of the outer tubes 6 . . . 6 is an inner tube 8 having a plurality of small holes 7 .・・・・・・Predetermined gap S by 9
Each one end 8a of the inner tube 8 is inserted with a space between it and the one end 6a of the outer tube 6, a small hole is provided and closed, and the other end 8b is opened. ...8b is inserted through the outlet chamber 3 and inserted into the partition wall 5a of the inlet chamber 5 on the outlet chamber 3 side, fixedly supported by welding or the like, and the other end 8b
. . . 8b is opened to the entrance chamber 5.
上記支持金具９は、内管８の全長に渡って一定の間隔ｌ
で配置される。The support fittings 9 are arranged at constant intervals l over the entire length of the inner tube 8.
It will be placed in
該支持金具９は、第２図，第３図ａおよび第３図ｂに詳
細に示すように、内管８の外面に嵌合して、所定位置で
溶接固定される筒部９ａと、該筒部９ａの一端部から、
外管６の出口側へ向って、内管８の小孔７の上方のみを
カバーしながら斜めに立上り、立上り端９Ｃが外管６の
内面に当接する、正三角コーン状のデフレクタ部９ｂと
で或る。As shown in detail in FIGS. 2, 3a, and 3b, the support fitting 9 includes a cylindrical portion 9a that fits onto the outer surface of the inner tube 8 and is welded and fixed at a predetermined position. From one end of the cylindrical portion 9a,
An equilateral triangular cone-shaped deflector portion 9b rises obliquely toward the outlet side of the outer tube 6 while covering only the upper part of the small hole 7 of the inner tube 8, and has a rising end 9C in contact with the inner surface of the outer tube 6. There it is.
こうして、支持金具９は、内管８と外管６との隙間Ｓを
保持する機能と、内管８の小孔７からの蒸気を外管６の
出口側へ向って噴出させるテ゛フレクタ機能とを同時に
兼ね備える。In this way, the support fitting 9 has the function of maintaining the gap S between the inner tube 8 and the outer tube 6, and the deflector function of blowing out the steam from the small hole 7 of the inner tube 8 toward the outlet side of the outer tube 6. Combined at the same time.
上記のように二重管式蒸気用熱交換器を構戒すれば、低
温側流体入口から熱交換器本体１内に流体を導入する一
方、蒸気導入口４から入口室５に蒸気を導入すると、蒸
気は各内管８・・・・・・８を通って各小孔７・・・・
・・７から外管６・・・・・・６内へ噴出され、外管６
外の流体と熱交換するようになり、蒸気は保有する熱エ
ネルギーを放出して凝縮水となる。If the double pipe steam heat exchanger is carefully constructed as described above, fluid is introduced into the heat exchanger main body 1 from the low-temperature side fluid inlet, while steam is introduced into the inlet chamber 5 from the steam inlet 4. , steam passes through each inner pipe 8...8 and enters each small hole 7...
... 7 into the outer pipe 6 ... 6, and the outer pipe 6
As the steam exchanges heat with the outside fluid, it releases its thermal energy and becomes condensed water.
この場合、各小孔７・・・・・・７から噴出する蒸気は
、支持金具９のデフレクタ部９ｂに衝突して方向が変え
られ、外管６の出口側へ向って噴出されるので、凝縮水
は、各小孔７・・・・・・７より連続的に噴出する蒸気
によって押し送られて、すみやかに他端部６ｂから出口
室３に排出されるようになる。In this case, the steam ejected from each small hole 7...7 collides with the deflector part 9b of the support fitting 9, changes its direction, and is ejected toward the outlet side of the outer tube 6. The condensed water is pushed by the steam continuously ejected from each of the small holes 7...7, and is promptly discharged from the other end 6b to the outlet chamber 3.
従って、内管８と外管６との隙間Ｓに凝縮水がたまらな
いので、噴出蒸気分配が均一になって、常に高効率で熱
交換が行なわれるようになる。Therefore, since condensed water does not accumulate in the gap S between the inner tube 8 and the outer tube 6, the distribution of the ejected steam becomes uniform, and heat exchange is always carried out with high efficiency.
上記実施例の支持金具９はテ゛フレクタ部９ｂが正三角
コーン状であったが、第４図に示すように、ダ円コーン
状に形或しても良く、その他種々の形状を採用すること
ができる。In the support fitting 9 of the above embodiment, the deflector portion 9b was shaped like an equilateral triangular cone, but as shown in FIG. can.
考案の効果
以上のように、この考案は、内管と外管との隙間を保持
する支持金具にデフレクタ部を設けたものであるから、
支持金具が隙間保持機能とテ゛フレクタ機能とを兼ね備
え、凝縮水の排水を迅速にして噴出蒸気分配を均一にし
、常に高効率で熱交換が行なわれるようになる。Effects of the invention As described above, this invention provides a deflector part in the support fitting that maintains the gap between the inner tube and the outer tube.
The supporting metal fittings have both a gap retaining function and a reflector function, allowing for rapid drainage of condensed water and uniform distribution of ejected steam, ensuring highly efficient heat exchange at all times.
また、支持金具は容易かつコスト安に製作でき、２つの
機能を持たせられるので部品点数も減少させることがで
きる。Furthermore, the support fitting can be manufactured easily and at low cost, and since it can have two functions, the number of parts can be reduced.
第１図は二重管式蒸気用熱交換器の断面図、第２図は第
１図の出口室、入口室側の拡大図、第３図ａは支持金具
の正面断面図、第３図ｂは第３図ａの側面断面図、第４
図は変形例の支持金具の正面断面図である。
１・・・・・・熱交換器本体、６・・・・・・外管、７
・・・・・・小孔、８・・・・・・内管、９・・・・・
・支持金具、９ａ・・・・・・筒部、９ｂ・・・・・・
テ゛フレクタ部、Ｓ・・・・・・隙間。Figure 1 is a sectional view of a double pipe steam heat exchanger, Figure 2 is an enlarged view of the outlet chamber and inlet chamber side of Figure 1, Figure 3a is a front sectional view of the support fitting, Figure 3 b is a side sectional view of Fig. 3a, Fig. 4
The figure is a front sectional view of a modified support fitting. 1...Heat exchanger body, 6...Outer tube, 7
...Small hole, 8...Inner tube, 9...
・Supporting metal fittings, 9a...Cylinder part, 9b...
Reflector part, S...Gap.
Claims (1)
てて外管内に挿入し、上記内管の小孔から外管内へ蒸気
を噴出させて、外管外を流通する流体と熱交換する二重
管式蒸気用熱交換器において、 上記内管の外面に嵌合固着される筒部と、該筒部の一端
部から、外管の出口側へ向って、内管の小孔の上方のみ
をカバーしながら斜めに立上り、立上り端が外管の内面
に当接するテ゛フレクタ部とで或る支持金具を設け、該
支持金具で、内管と外管との所定の隙間を保持すると同
時に、内管の小孔からの蒸気を外管の出口側へ向って噴
出させるようにしたことを特徴とする二重管式蒸気用熱
交換器における内管支持金具の構造。[Scope of Claim for Utility Model Registration] An inner tube with a plurality of small holes bored around its outer periphery is inserted into the outer tube with a predetermined gap therebetween, and steam is ejected from the small holes in the inner tube into the outer tube. , in a double-pipe steam heat exchanger that exchanges heat with a fluid flowing outside the outer tube, a cylindrical portion that is fitted and fixed to the outer surface of the inner tube, and an outlet of the outer tube from one end of the cylindrical portion. A support fitting is provided with a reflector part that rises diagonally toward the side while covering only the upper part of the small hole of the inner tube, and whose rising end abuts the inner surface of the outer tube. The inner tube of a double-pipe steam heat exchanger is characterized in that a predetermined gap is maintained between the inner tube and the outer tube, and at the same time steam is ejected from small holes in the inner tube toward the outlet side of the outer tube. Structure of pipe support fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980023943U JPS599187Y2 (en) | 1980-02-25 | 1980-02-25 | Structure of inner pipe support fittings in double pipe steam heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980023943U JPS599187Y2 (en) | 1980-02-25 | 1980-02-25 | Structure of inner pipe support fittings in double pipe steam heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56124776U JPS56124776U (en) | 1981-09-22 |
| JPS599187Y2 true JPS599187Y2 (en) | 1984-03-22 |
Family
ID=29620038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980023943U Expired JPS599187Y2 (en) | 1980-02-25 | 1980-02-25 | Structure of inner pipe support fittings in double pipe steam heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599187Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882283A (en) * | 1987-11-17 | 1989-11-21 | Phillips Petroleum Company | Heat exchange apparatus |
-
1980
- 1980-02-25 JP JP1980023943U patent/JPS599187Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56124776U (en) | 1981-09-22 |
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