JPH0353524B2 - - Google Patents
Info
- Publication number
- JPH0353524B2 JPH0353524B2 JP59027688A JP2768884A JPH0353524B2 JP H0353524 B2 JPH0353524 B2 JP H0353524B2 JP 59027688 A JP59027688 A JP 59027688A JP 2768884 A JP2768884 A JP 2768884A JP H0353524 B2 JPH0353524 B2 JP H0353524B2
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- water
- pipe
- tank
- continuous blow
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000000725 suspension Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明はボイラ保缶装置に関するものである。
従来長期間（３ケ月以上）にわたりボイラを休缶
する保存方法として次のような方法がある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a boiler storage device.
Conventionally, there are the following preservation methods for shutting down a boiler for a long period of time (3 months or more).
(1) 缶水を抜き乾燥剤としてシリカゲルを投入し
て乾燥保存する方法
(2) 缶水を抜き乾燥御缶内空気をN2ガスで置換
し密閉保存する方法
(3) 純水又は処理水を使用し満水保存する方法以
上の方法はいずれも定期的に解放し、内部検査
をしなければならないもので手間及び維持費が
高くなる。(1) A method of removing the water from the can and adding silica gel as a desiccant to dry and preserve it. (2) A method of removing the water from the can and replacing the air inside the drying can with N 2 gas and storing it tightly. (3) Pure water or treated water. All of the above methods require periodic release and internal inspection, resulting in high labor and maintenance costs.
連続ブロー水を使用する方法として特開昭55−
28410号公報に示されたような方法がある。 Japanese Patent Application Laid-Open No. 1983-1987 as a method of using continuous blow water.
There is a method as shown in Publication No. 28410.
このものは装置外に廃棄される連続ブロー水の
一部を弁のある管路を介してボイラの下ドラムに
挿入し、更に蒸発管、水壁管を介して上ドラムに
流入するようにしてあり、上ドラムには低圧水位
調整弁をもつ水位調整装置を接続し、レベルコン
トロール弁により上ドラム内の水位を一定に保持
させるようになつている。 In this system, part of the continuous blow water that is disposed of outside the equipment is inserted into the lower drum of the boiler through a pipe line with a valve, and then flows into the upper drum through an evaporation pipe and a water wall pipe. A water level adjustment device with a low-pressure water level adjustment valve is connected to the upper drum, and the water level in the upper drum is maintained constant by the level control valve.
かかる方法によれば次のような欠点がある。 This method has the following drawbacks.
(1) 複数のボイラを日替り運転するとき連続ブロ
ー水配管を切り替えて接続することを必要とす
る
(2) 水面上の空洞部において溶存酸素による腐蝕
の恐れがある
(3) ボイラ及び圧力容器安全規則の構造規格第
194条第４項に反する
本発明は以上の点に鑑みて考案されたものであ
つて日常使用している連続ブロー水を使用するこ
とにより取扱いが簡単で従来どおりの保缶ができ
るボイラ保缶装置を提供せんとするもので運転中
のボイラの連続ブロー水を解放タンクを介して運
転休止中のボイラに下方から供給できるように構
成し、かつ運転休止中のボイラ上方にシスターン
を連結することによりシスターンから連続ブロー
水を溢水させて排水できる如く構成し、これによ
つて運転休止中のボイラを連続ブロー水で満水状
態として保缶ができる如く構成したものである。(1) When operating multiple boilers on a daily basis, it is necessary to switch and connect continuous blow water piping (2) There is a risk of corrosion due to dissolved oxygen in cavities above the water surface (3) Boilers and pressure vessels Safety Regulations Structural Standards No.
Contrary to Article 194, Paragraph 4 The present invention has been devised in view of the above points, and is a boiler container that is easy to handle and can be stored in the same manner as before by using the continuous blow water that is used on a daily basis. The equipment is constructed so that continuous blow water from a boiler in operation can be supplied from below to a boiler that is out of operation via a release tank, and a cistern is connected above the boiler that is out of operation. The system is constructed so that continuous blow water can overflow from the cistern and be drained, thereby making it possible to fill the boiler with continuous blow water while the boiler is out of operation and to keep the boiler intact.
本発明のものによれば次のような効果がある。 According to the present invention, the following effects can be obtained.
(1) 連続ブロー水の温度は常温以上あつて煙管、
水管及び缶内が結露しにくい
(2) 連続ブロー水は使用中の缶の缶水濃度を調整
するために発生するものであるが、この連続ブ
ロー水を利用するため清缶剤等の再投入が不要
である
(3) 再運転する場合短期間で開始できる
(4) 日常管理が簡単取扱いが容易である
(5) 運転中の複数のボイラの連続ブロー管をタン
クに集結することにより管の切り替えを必要と
しない
(6) 缶全体が連続ブロー水で満されるため溶存酸
素による腐蝕を防止できる
(7) 長期、短期どちらの保存にも対応できる。(1) The temperature of the continuous blow water is above room temperature and the smoke pipe
Condensation is less likely to occur in the water pipes and inside the can (2) Continuous blow water is generated to adjust the concentration of can water in the can during use, but in order to use this continuous blow water, it is necessary to re-inject can cleaning agent, etc. (3) Re-operation can be started in a short period of time (4) Daily management is simple and easy to handle (5) Continuous blow pipes from multiple boilers in operation can be collected in a tank to reduce pipe damage. No changeover is required (6) Since the entire can is filled with continuous blown water, corrosion due to dissolved oxygen can be prevented (7) Can be used for both long-term and short-term storage.
以下図面に示す実施例について説明する。 The embodiments shown in the drawings will be described below.
１は運転中のボイラであつて、熱交換器２を介
して解放タンク３に連通している。４，５はその
連結管である。 Reference numeral 1 denotes a boiler in operation, which communicates with a release tank 3 via a heat exchanger 2. 4 and 5 are connecting pipes.
解放タンク３にはオーバーフロー管６があり、
更に水位計７の電極棒９によつてタンクの低水位
を検知しポンプ１０の空運転を防止する。解放タ
ンク３は又ポンプ１０を介して休缶中のボイラ１
１に連通しており、１２，１３はその連結管であ
る。 The release tank 3 has an overflow pipe 6.
Further, the electrode rod 9 of the water level gauge 7 detects a low water level in the tank to prevent the pump 10 from running idle. The release tank 3 is also connected to the idle boiler 1 via the pump 10.
1, and 12 and 13 are connecting pipes.
又１４，１５は連結管１２，１３中の弁であ
る。なお弁１５の前には逆止弁８があり、これは
ボイラ１１に供給したブロー水の逆流を防止する
ためのものである。 Further, 14 and 15 are valves in the connecting pipes 12 and 13. Note that there is a check valve 8 in front of the valve 15, and this is for preventing the blow water supplied to the boiler 11 from flowing back.
更に又１６は解放タンク３と連結管１３とをつ
なぐ循環配管であり、２２はその弁である。そし
て１７は解放タンク３の底部とオーバーフロー管
６とをつなぐ管で、１８はその弁を示す。 Furthermore, 16 is a circulation pipe connecting the release tank 3 and the connecting pipe 13, and 22 is a valve thereof. 17 is a pipe connecting the bottom of the release tank 3 and the overflow pipe 6, and 18 is a valve thereof.
休缶中のボイラ１１は連結管１９を介してボイ
ラ１１上方のシスターン２０につながつており、
２１はシスターン２０の排水管を示す。 The boiler 11 which is inactive is connected to the cistern 20 above the boiler 11 via a connecting pipe 19.
21 indicates a drain pipe of the cistern 20.
以上のような配管のうち連続ブロー装置出口配
管すなわち管５は必ず解放タンク３内で水封とす
る。 Among the piping described above, the continuous blowing device outlet piping, that is, the pipe 5, is always water-sealed within the open tank 3.
又、循環配管１６も必ず解放タンク３内で水封
とする。 Further, the circulation pipe 16 is also always sealed with water inside the open tank 3.
更に又、解放タンク３にはポンプの空引防止対
策を行う必要があるが水位計７がこれに当たる。 Furthermore, it is necessary to take measures to prevent the pump from running dry in the release tank 3, and the water level gauge 7 corresponds to this.
その他、加圧ポンプ１０のキヤビテーシヨン防
止のために解放タンク３の底を加圧ポンプ１０よ
り高くすると共に加圧ポンプ吐出量はブロー水量
よりも少なくするために循環配管１６やオーバー
フロー管６が設けられている。 In addition, a circulation pipe 16 and an overflow pipe 6 are provided to make the bottom of the release tank 3 higher than the pressure pump 10 in order to prevent cavitation of the pressure pump 10, and to make the discharge amount of the pressure pump smaller than the amount of blow water. ing.
本発明装置は以上の如く構成されているので運
転中のボイラ１からの連続ブロー水は管４，５を
介して一旦解放タンク３に受けられ、その後加圧
ポンプ１０で管１２，１３を介して休缶中のボイ
ラ１１に圧入される。 Since the apparatus of the present invention is constructed as described above, the continuously blown water from the boiler 1 during operation is once received in the release tank 3 via the pipes 4 and 5, and then is sent to the release tank 3 by the pressurizing pump 10 via the pipes 12 and 13. The boiler 11 is press-fitted into the boiler 11, which is currently idle.
ところが休缶中のボイラ１１は上方のシスター
ン２０につながつているので常時満水状態を維持
することができる。そして休缶中のボイラの中の
連続ブロー水温度が何らかの条件で降下しても凝
縮による水位降下に対応する容量をもつシスター
ンがあるのでボイラ１１内に空洞は発生しない。 However, since the boiler 11 which is inactive is connected to the cistern 20 above, it can always be kept full of water. Even if the temperature of the continuously blown water in the boiler during the idle period drops under some conditions, no cavities will be generated in the boiler 11 because there is a cistern with a capacity to cope with the drop in water level due to condensation.
したがつて溶存酸素による腐蝕の恐れはない。
又、解放タンク３において前述した如くオーバー
フロー管６及び循環配管１６の下端を水面下とし
て水封してあるので空気の巻き込みによる酸素の
進入が防がれる。したがつて溶存酸素濃度の増加
が防止される。 Therefore, there is no fear of corrosion due to dissolved oxygen.
Further, in the release tank 3, the lower ends of the overflow pipe 6 and the circulation pipe 16 are kept below the water surface and sealed with water, as described above, so that the intrusion of oxygen due to air entrainment is prevented. Therefore, an increase in dissolved oxygen concentration is prevented.
何れにしても解放タンク３内のブロー水面を供
給及び吐出のバランスをとつて変化させないよう
に運転するもので、運転中の複数のボイラの連続
ブロー管すなわち、管５をタンク３に集結するこ
とにより管の切り替えを必要としないし、又缶全
体が連続ブロー水で満たされているため溶存酸素
に腐蝕が防止できるという特徴がある。 In any case, the operation is performed so that the blow water level in the open tank 3 is not changed by maintaining the balance between supply and discharge, and the continuous blow pipes of the plurality of boilers in operation, that is, the pipes 5 are concentrated in the tank 3. This eliminates the need to change pipes, and since the entire can is filled with continuously blown water, corrosion due to dissolved oxygen can be prevented.
図面は本案装置を示す説明図である。
１……運転中のボイラ、３……解放タンク、１
０……加圧ポンプ、１１……休缶中のボイラ、２
０……シスターン。
The drawing is an explanatory diagram showing the present device. 1...Boiler in operation, 3...Release tank, 1
0...Pressure pump, 11...Boiler in suspension, 2
0... Cistern.
Claims (1)
を介して運転休止中のボイラに下方から供給でき
るように構成し、かつ運転休止中のボイラ上方に
シスターンを連結することによりシスターンから
連続ブロー水を溢水させて排水できる如く構成
し、これによつて運転休止中のボイラを連続ブロ
ー水で満水状態として保缶ができる如く構成され
たボイラ保缶装置。1. Constructed so that continuous blow water from a boiler in operation can be supplied from below to a boiler that is out of operation via a release tank, and by connecting a cistern above the boiler that is out of operation, continuous blow water can be supplied from the cistern to the boiler that is out of operation. A boiler storage device configured to allow water to overflow and drain, thereby filling a boiler with continuously blown water and storing the boiler during suspension of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59027688A JPS60171303A (en) | 1984-02-16 | 1984-02-16 | Maintaining device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59027688A JPS60171303A (en) | 1984-02-16 | 1984-02-16 | Maintaining device for boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60171303A JPS60171303A (en) | 1985-09-04 |
| JPH0353524B2 true JPH0353524B2 (en) | 1991-08-15 |
Family
ID=12227905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59027688A Granted JPS60171303A (en) | 1984-02-16 | 1984-02-16 | Maintaining device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60171303A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579604A (en) * | 1991-09-19 | 1993-03-30 | Toray Ind Inc | Method of maintaining casing of boiler at rest |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392002A (en) * | 1977-01-22 | 1978-08-12 | Ebara Corp | Control method for water-level in boiler and its device |
| JPS5618206A (en) * | 1979-07-24 | 1981-02-20 | Babcock Hitachi Kk | Shell protection of boiler |
-
1984
- 1984-02-16 JP JP59027688A patent/JPS60171303A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392002A (en) * | 1977-01-22 | 1978-08-12 | Ebara Corp | Control method for water-level in boiler and its device |
| JPS5618206A (en) * | 1979-07-24 | 1981-02-20 | Babcock Hitachi Kk | Shell protection of boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60171303A (en) | 1985-09-04 |
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