JPS6228363B2 - - Google Patents
Info
- Publication number
- JPS6228363B2 JPS6228363B2 JP15366981A JP15366981A JPS6228363B2 JP S6228363 B2 JPS6228363 B2 JP S6228363B2 JP 15366981 A JP15366981 A JP 15366981A JP 15366981 A JP15366981 A JP 15366981A JP S6228363 B2 JPS6228363 B2 JP S6228363B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- heat exchanger
- drain
- water heater
- support plate
- 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
Landscapes
- Resistance Heating (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】
本発明は火力及び原子力発電プラントに使用す
る給水加熱器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feedwater heater for use in thermal and nuclear power plants.
従来、この種の給水加熱器は第１図に示すよう
に胴体１に設けられた蒸気入口６およびドレン入
口７を経て導入され、タービンからの抽気される
蒸気ｂ及び高圧側から排出されたドレンｃが、管
支持板１０で形成された各管巣１５，１６（第２
図）を流通し、この管巣１５，１６の伝熱管９中
を流通する給水に熱を与え、胴体１の底部にドレ
ン１４となつて溜る。このドレン１４は、ドレン
クーラー部１３内を流通し、さらに、熱を与え
て、ドレン出口８より排出される。 Conventionally, this type of feed water heater is introduced through a steam inlet 6 and a drain inlet 7 provided in a body 1, as shown in FIG. c indicates each tube nest 15, 16 (second
), which gives heat to the water flowing through the heat transfer tubes 9 of the tube bundles 15 and 16, and accumulates as a drain 14 at the bottom of the body 1. This drain 14 flows through the drain cooler section 13, is further given heat, and is discharged from the drain outlet 8.
一方、給水ａは給水入口２より水室４を流入
し、両端を管板５に固定された伝熱管９中を流通
して加熱された後に、水室４を経て給水出口３か
ら排出される。 On the other hand, the water supply a flows into the water chamber 4 from the water supply inlet 2, flows through the heat exchanger tube 9 whose both ends are fixed to the tube plate 5, is heated, and is then discharged from the water supply outlet 3 through the water chamber 4. .
上記のような、従来の給水加熱器では、蒸気入
口６より導入された蒸気は、デイスタントピース
１１により保護されたデイスタントボルト１２に
よりある間隙に保たれた管支持板１０に穿孔され
た穴により形成された管巣１５，１６を流通し、
伝熱管９中を流通する給水に熱を与える。この
時、伝熱管９と管支持板１０に穿孔された穴の間
隙は小さい程良いが、穴の機械加工公差及び伝熱
管９の製造時の公差等により、ある程度の間隙が
生じる。この間隙は、長年使用している内に管巣
１５，１６内を流通する蒸気及びドレンにより、
管支持板１０の穴を浸食し始める。管支持板１０
と、伝熱管９の間隙が浸食により大きくなると伝
熱管９に振動が生じ、やがては被断するおそれが
ある。 In the conventional feed water heater as described above, steam introduced from the steam inlet 6 is passed through holes drilled in the tube support plate 10 that are kept at a certain gap by distant bolts 12 protected by distant pieces 11. Flowing through tube nests 15 and 16 formed by
Heat is given to the water supply flowing through the heat exchanger tubes 9. At this time, the smaller the gap between the holes drilled in the heat exchanger tube 9 and the tube support plate 10, the better, but a certain amount of gap will occur due to the machining tolerance of the hole, the manufacturing tolerance of the heat exchanger tube 9, and the like. This gap is caused by steam and drain flowing through the tube nests 15 and 16 after many years of use.
The holes in the tube support plate 10 begin to erode. Pipe support plate 10
If the gap between the heat exchanger tubes 9 becomes large due to erosion, vibrations will occur in the heat exchanger tubes 9, and there is a risk that they will eventually break.
本発明は管支持板支持の不具合を解消し、より
安全な給水加熱器を提供するにある。 The object of the present invention is to solve the problem of tube support plate support and provide a safer water heater.
本発明の特徴は、給水加熱器の伝熱管の振動を
防止するため、伝熱管振れ止めサポート１７に支
持されたコンデンシング部及びドレンクーラ部に
クシ歯１８を取付けた点にある。 A feature of the present invention is that comb teeth 18 are attached to the condensing section and the drain cooler section supported by the heat transfer tube steady support 17 in order to prevent vibration of the heat transfer tube of the feed water heater.
本発明の実施例を以下、図面を用いて説明す
る。第３図において、給水加熱器内に配置された
管支持板９をはさみ、その前後に伝熱管振れ止ち
サポート１７に支持されたクシ歯１８を、管巣内
部に挿入し、伝熱管の振動を押える。第４図及び
第５図にいて、伝熱管振れ止めサポート１７に取
付けられたクシ歯１８は、伝熱管９を傷めないよ
う伝熱管９とクシ歯１８との間には間隙を設け
る。 Embodiments of the present invention will be described below with reference to the drawings. In FIG. 3, comb teeth 18 supported by heat exchanger tube rest supports 17 on both sides of the tube support plate 9 disposed in the feed water heater are inserted into the tube nest to vibrate the heat exchanger tubes. hold down. In FIGS. 4 and 5, the comb teeth 18 attached to the heat exchanger tube steady support 17 provide a gap between the heat exchanger tube 9 and the comb teeth 18 so as not to damage the heat exchanger tube 9.
本発明によれば、伝熱管の振動を十分に押える
ことができる。 According to the present invention, vibration of the heat exchanger tube can be sufficiently suppressed.
第１図は給水加熱器の断面図、第２図は第１図
の―矢視断面図、第３図は本発明のドレンク
ーラ内の伝熱管振れ止めの断面図、第４図は本発
明の振れ止め装置状況図、第５図は本発明の振れ
止めの詳細図である。
１……胴体、２……給水入口、３……給水出
口、４……水室、５……管板、６……蒸気入口、
７……ドレン入口、８……ドレン出口、９……伝
熱管、１０……管支持板、１３……ドレンクーラ
部、１４……ドレン、１５……下部管巣、１６…
…上部管巣、１７……伝熱管振れ止めサポート、
１８……クシ歯。
Fig. 1 is a cross-sectional view of the feed water heater, Fig. 2 is a cross-sectional view taken along the - arrow in Fig. 1, Fig. 3 is a cross-sectional view of the heat exchanger tube steady rest in the drain cooler of the present invention, and Fig. 4 is a cross-sectional view of the heat exchanger tube steady rest in the drain cooler of the present invention. Steady rest device status diagram, FIG. 5 is a detailed view of the steady rest of the present invention. 1...Body, 2...Water supply inlet, 3...Water supply outlet, 4...Water chamber, 5...Tube plate, 6...Steam inlet,
7... Drain inlet, 8... Drain outlet, 9... Heat exchanger tube, 10... Tube support plate, 13... Drain cooler section, 14... Drain, 15... Lower tube nest, 16...
...Upper tube nest, 17...Heat transfer tube steady support,
18...Comb teeth.
Claims (1)
において、前記伝熱管に管巣外面より前記伝熱管
の振れ止めサポートに支持されたクシ歯を、ドレ
ンクーラ部の前記伝熱管の相互間に挿入したこと
を特徴とする給水加熱器。1. In a feed water heater in which heat exchanger tubes are held by a tube support plate, comb teeth supported by a steady support of the heat exchanger tubes from the outer surface of the tube nest are inserted between the heat exchanger tubes in the drain cooler part. A feed water heater characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15366981A JPS5855603A (en) | 1981-09-30 | 1981-09-30 | feed water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15366981A JPS5855603A (en) | 1981-09-30 | 1981-09-30 | feed water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5855603A JPS5855603A (en) | 1983-04-02 |
| JPS6228363B2 true JPS6228363B2 (en) | 1987-06-19 |
Family
ID=15567577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15366981A Granted JPS5855603A (en) | 1981-09-30 | 1981-09-30 | feed water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433861A (en) * | 1987-07-28 | 1989-02-03 | Denki Kagaku Kogyo Kk | Grounding resistance reducing agent |
-
1981
- 1981-09-30 JP JP15366981A patent/JPS5855603A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433861A (en) * | 1987-07-28 | 1989-02-03 | Denki Kagaku Kogyo Kk | Grounding resistance reducing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5855603A (en) | 1983-04-02 |
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