JPS5918496A - Method of dehumidifying gaseous waste processing circuit - Google Patents
Method of dehumidifying gaseous waste processing circuitInfo
- Publication number
- JPS5918496A JPS5918496A JP12775282A JP12775282A JPS5918496A JP S5918496 A JPS5918496 A JP S5918496A JP 12775282 A JP12775282 A JP 12775282A JP 12775282 A JP12775282 A JP 12775282A JP S5918496 A JPS5918496 A JP S5918496A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gaseous waste
- flow rate
- waste treatment
- treatment system
- 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
- 239000010795 gaseous waste Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 14
- 239000007789 gas Substances 0.000 claims description 40
- 238000007791 dehumidification Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
- Drying Of Solid Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術的背景とその問題点〕
一般に沸騰水形原子力発電プラント１：おける気体廃棄
物処理系統（プロセスライン）は、第１図に示すように
主復水器から連結されるエジェクタ１、予熱器２．再結
合器３．復水器４．予冷器５゜ホールドアツプ配管６．
乾燥器７１サンドフィルタ８．活性炭塔９．排ガスフィ
ルタ１０．真空ポンプ１】およびスタック１２が直列に
配管接続された構成に々っている。[Detailed Description of the Invention] [Technical background of the invention and its problems] Generally, the gaseous waste treatment system (process line) in a boiling water nuclear power plant 1 includes a main condenser as shown in Fig. 1. Ejector 1, preheater 2. Recombiner 3. Condenser 4. Precooler 5° hold up piping 6.
Dryer 71 Sand filter 8. Activated carbon tower9. Exhaust gas filter 10. The vacuum pump 1 and the stack 12 are connected in series by piping.
原子炉を運転中、生後水製からエジェクタＩにより抽出
された排ガスは、原子炉内で生成された放射性物質を含
んでいるため、予熱器２．再結合器３．復水器４．予冷
器５を通じて排ガス中の水素及び水分を除去した後、ホ
ールドアツプ配管６でｊ（０分間、又はそれ以上の流通
時間をかにて短半減期の放射能を減衰させる。続いて乾
燥器７で湿分な除去し、サンドフィルタ８を通した後、
活性になった排ガスを真空ポンプ１１によりスタック１
２から大気中に放出する。During the operation of the nuclear reactor, the exhaust gas extracted from the raw water by the ejector I contains radioactive materials generated in the reactor, so the exhaust gas is removed from the preheater 2. Recombiner 3. Condenser 4. After removing hydrogen and moisture from the exhaust gas through the precooler 5, the radioactivity with a short half-life is attenuated by passing through the hold-up pipe 6 for 0 minutes or longer.Subsequently, the dryer 7 After removing moisture and passing through sand filter 8,
The activated exhaust gas is transferred to stack 1 by vacuum pump 11.
Released into the atmosphere from 2.
この気体廃棄物処理系統は、前記したように各種の機器
を直列に連結して生プロセスラインを形成し、その流体
駆動を同処理系統の入口部のエジェクタ１および出口部
の真空ポンプ１１で行なっている。このため、このプロ
セスラインは負圧真空Ｃ二て運転されている。As described above, this gaseous waste treatment system connects various devices in series to form a raw process line, and the fluid is driven by the ejector 1 at the inlet and the vacuum pump 11 at the outlet of the treatment system. ing. For this reason, this process line is operated under negative pressure vacuum C2.
′−！た、前記説明では省略したが、系統の安全性を高
めるための各機器の２系列化その他で、各機器を連結す
る配管（二は各所に弁が接続されており、さらｆ二、ド
レン排出または計装、その他の補助的配管が設けられて
いる。′-! In addition, although omitted in the above explanation, in order to improve the safety of the system, each device is divided into two lines, and the piping that connects each device (2, valves are connected at various places, and f2, drain discharge). Or instrumentation or other auxiliary piping is provided.
ところで、前記気体廃棄物処理系統中の除湿器と１ては
、排ガス予冷器５．排ガス乾燥器７があり、それぞれ排
ガス冷却機１３．排ガス冷凍機１４ により冷却される
。また、これらの機器の除湿能力は、気体廃棄物処理系
統の最小負荷から最大負荷（θ〜４０’／ｚ）までカバ
ーできるように設計されている。しかしながら気体廃棄
物処理系統の系統流量は原子炉起動時一時的に最大とな
るが、まもなく低下して安定流量運転に入る。このため
気体廃棄物処理系統の系統流Ｉが低下した場合排ガス冷
却機＋３．排ガス冷凍機１４が設計冷却温度よりも異常
に低下し、排ガス冷却機１３．排ガス冷凍機１４に設置
されている低圧スイッチが作動し、運転停止となる。こ
ｉｌを防止するため、前記冷却機および冷凍機をホット
ガスバイパス運転して排ガス予冷器、排ガス乾燥器を所
定の冷却能力Ｃする。し。By the way, the dehumidifier in the gaseous waste treatment system is the exhaust gas precooler 5. There is an exhaust gas dryer 7, and an exhaust gas cooler 13. It is cooled by an exhaust gas refrigerator 14. Further, the dehumidification capacity of these devices is designed to cover the minimum load to the maximum load (θ~40'/z) of the gaseous waste treatment system. However, although the system flow rate of the gaseous waste treatment system temporarily reaches its maximum at reactor startup, it soon decreases and enters stable flow operation. Therefore, if the system flow I of the gaseous waste treatment system decreases, the exhaust gas cooler +3. The exhaust gas cooler 14 has abnormally lowered its cooling temperature than the design cooling temperature, and the exhaust gas cooler 13. The low pressure switch installed in the exhaust gas refrigerator 14 is activated and the operation is stopped. In order to prevent this, the cooler and refrigerator are operated by hot gas bypass, and the exhaust gas precooler and exhaust gas dryer are controlled to a predetermined cooling capacity C. death.
かじ、消費重力の面からみると、ホットカスバイパス運
転方式は得策でない。それは気体廃棄物処理系統の系統
流量が低下し、ても、消費ｍ力は低下しないという欠点
がある。またホットガスバイパス運転方式により気体廃
棄物処理系統の最小負荷から最大負荷まで冷却機、冷凍
機を制御するため冷却機、冷凍機の調整時間に多くの時
間を費やす欠点がある。From the perspective of steering and gravity consumption, the hot gas bypass operation method is not a good idea. It has the disadvantage that even though the system flow rate of the gaseous waste treatment system is reduced, the power consumption is not reduced. In addition, since the hot gas bypass operation method controls the coolers and refrigerators from the minimum load to the maximum load of the gas waste treatment system, there is a drawback that a large amount of time is required for adjusting the coolers and refrigerators.
本発明は、上記の点（二鑑みてなされたもので、気体廃
棄物処理系統中の除湿関連装置の効率的な除湿方法を提
供することを目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to provide an efficient dehumidification method for a dehumidification-related device in a gaseous waste treatment system.
本発明は、上記目的を達成するために、原子力発電プラ
ントの気体廃棄物処理系統の除湿方法（二おいて、前記
気体廃棄物処理系統の系統流量が設定値以上のときは、
排ガス予冷器を冷却する排ガス冷却機と排ガス乾燥機を
冷却する排ガス冷凍機の両方を運転し、前記系統流１゛
が設定値以下のときけ前記排ガス冷却機を停止して、前
記排ガス乾燥機のみを運転するようにしたものである。In order to achieve the above object, the present invention provides a method for dehumidifying a gaseous waste treatment system of a nuclear power plant (ii) when the system flow rate of the gaseous waste treatment system is equal to or higher than a set value,
Both the exhaust gas cooler that cools the exhaust gas precooler and the exhaust gas refrigerator that cools the exhaust gas dryer are operated, and when the system flow 1 is below the set value, the exhaust gas cooler is stopped and the exhaust gas dryer is stopped. It is designed so that only the driver can drive the vehicle.
以下、本発明の一実施例を第２図を用いて説明する。 An embodiment of the present invention will be described below with reference to FIG.
第２図５−示すようＣ二、復水器４の出口配管附近に流
ｌ°計１５を配設し、この流量計１５により気体廃棄物
処理系統の系統流量を検知し、その係号を制御盤１６１
＝送り、この制御盤１６に設けた流量設定器１７の流量
設定値と比較して排ガス冷却機１３の０Ｎ−ＯＦ’ＩＩ
’制御を行なうものである。その他の構成については第
１図と同一であり、同一装置には同一符号を付している
のでその説明は省略する。As shown in Figure 2-5, a flow meter 15 is installed near the outlet pipe of the condenser 4, and this flow meter 15 detects the system flow rate of the gaseous waste treatment system and calculates its coefficient. Control panel 161
0N-OF'II of the exhaust gas cooler 13 by comparing it with the flow rate set value of the flow rate setting device 17 provided on this control panel 16.
'It is something that exercises control. The rest of the configuration is the same as in FIG. 1, and the same devices are denoted by the same reference numerals, so the explanation thereof will be omitted.
次に、本発明の気体廃棄物処理系統の除湿方法を第３図
を用いて説明する。Next, a method of dehumidifying a gaseous waste treatment system according to the present invention will be explained with reference to FIG.
例えば、１１０万ＫＷ級原子力発電プラントでは、原子
炉起動時（ユは気体廃棄物処理系統の系統流量は８０１
Ｔｉｌ／ｚｌ−も達し、この値は流量設定器１７の流量
設定値２０ｒｒＩ″／ＪＬよりも大きいので、冷却機１
３及び冷凍機１４の両様を運転する。起動後し、ばらく
すると、本例では約１時間すると、原子炉内の反応も安
定するようになり、それに伴なって系統流量も減少し、
その後約２時間経過すると、その系統流量は２０Ｔｒｌ
”／Ｊを切るよう（−なる。そうすると、この値は流量
設定器１７の設定値よりも小さくなるので、冷却機１３
は停止し、冷凍機１４のみが運転することになるが、気
体廃棄物処理系統の除湿冷却は十分５二行なえることは
言うまでもない。このように原子炉起動時のような系統
流量°が大のときのみ一時的ζ：冷却機を運転し、その
後安定流量となった時点で冷却機を停止し、冷凍機のみ
で系統の除湿冷却を行なうので、従来の運転方法に比べ
て冷却機運転分の電力が節約できる。たソ、冷却機運転
停止により冷凍機にか＼る負荷が増大するが増大分の負
荷は、冷凍機のホットガスバイパス量が自動的Ｃ二減少
するので冷凍機の消費電力増大とはならない０々お、系
統流量の検知は若干の経験を績めば目視でも行なうこと
ができる。For example, in a 1.1 million KW class nuclear power plant, the system flow rate of the gaseous waste treatment system is 801,000 kW at the time of reactor startup.
Til/zl- also reaches, and this value is larger than the flow rate set value 20rrI''/JL of the flow rate setting device 17, so the cooler 1
3 and the refrigerator 14 are operated. After startup, in this example, after about an hour, the reaction inside the reactor becomes stable, and the system flow rate decreases accordingly.
Approximately 2 hours later, the system flow rate was 20Trl.
”/J (becomes -. Then, this value will be smaller than the setting value of the flow rate setting device 17, so the cooler 13
is stopped and only the refrigerator 14 is operated, but it goes without saying that the dehumidification and cooling of the gaseous waste treatment system is sufficient. In this way, the cooler is operated temporarily only when the system flow rate ° is large, such as at the time of reactor startup, and then the cooler is stopped when the flow reaches a stable flow rate, and the system is dehumidified and cooled using only the refrigerator. Therefore, compared to the conventional operating method, the electric power required for operating the cooler can be saved. Although the load on the chiller increases due to the chiller operation stoppage, the increased load does not result in an increase in the power consumption of the chiller because the hot gas bypass amount of the chiller is automatically reduced by C2. Furthermore, the system flow rate can be detected visually with some experience.
以上説明したよう（二、本発明の気体廃棄物処理系統の
除湿方法（二よれば、系統流量が大のときのみ一時的］
二排ガス冷却機を運転し、その後は排ガス冷却機を停止
させるより６二したから従来方法と比べて消費電力を大
巾（二節減することができた。As explained above (2. Dehumidification method for gaseous waste treatment system of the present invention (according to 2. temporary only when the system flow rate is large))
Compared to the conventional method, the power consumption was reduced by 62 times compared to the conventional method by operating two exhaust gas coolers and then stopping the exhaust gas coolers.
第１図は従来の気体廃棄物処理系統の系統図、第２図れ
１本発明に係゛る排ガス冷却機の信号系の概略しＩ％第
３図は本発明の除湿方法の説明図でおる。
１・・・エジェクター ２・・・予熱器３・・・再結
合器 ４・・・復水器５・・・排ガス予冷器 ６
・・・ホールドアツプ配管７・・・排ガス乾燥器 ８
・・・サンドフィルタ９・・・活性炭塔 １０・
・・フィルタ１１・・・真空ポンプ １２・・・ス
タック１３・・・排ガス冷却機 １４・・・排カス冷
凍機１５・・・流量計 １６・・・制御盤；１
７・・・流量設定器
第１図
第２図
／７
第３図Figure 1 is a system diagram of a conventional gaseous waste treatment system, Figure 2 is a schematic diagram of the signal system of the exhaust gas cooler according to the present invention, and Figure 3 is an explanatory diagram of the dehumidification method of the present invention. . 1... Ejector 2... Preheater 3... Recombiner 4... Condenser 5... Exhaust gas precooler 6
...Hold up piping 7...Exhaust gas dryer 8
... Sand filter 9 ... Activated carbon tower 10.
... Filter 11 ... Vacuum pump 12 ... Stack 13 ... Exhaust gas cooler 14 ... Exhaust gas refrigerator 15 ... Flow meter 16 ... Control panel; 1
7...Flow rate setting device Fig. 1 Fig. 2/7 Fig. 3
Claims (1)
方法において、前記気体廃棄物処理系統の系統流量が設
定値以上のときは、排ガス予冷器を冷却する排ガス冷却
機と排ガス乾燥器を冷却する排ガス冷凍機の両方を運転
し、前記系統流量が設定値以下のときは＠記排ガス冷却
機を停止して、前記排ガス乾燥器のみで除湿冷却を行な
うことを特徴とする気体廃棄物処理系統の除湿方法（２
）前記系統流量の検知は流量設定器または目視により行
なう気体廃棄物処理系統の除湿方法(1) In a method for dehumidifying a gaseous waste treatment system of a nuclear power plant, when the system flow rate of the gaseous waste treatment system is above a set value, the exhaust gas cooler and exhaust gas dryer that cool the exhaust gas precooler are cooled. A gaseous waste treatment system characterized in that both exhaust gas coolers are operated, and when the system flow rate is below a set value, the exhaust gas cooler is stopped and dehumidification and cooling is performed only by the exhaust gas dryer. Dehumidification method (2)
) A dehumidifying method for a gaseous waste treatment system in which the system flow rate is detected by a flow rate setting device or visually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775282A JPS5918496A (en) | 1982-07-23 | 1982-07-23 | Method of dehumidifying gaseous waste processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775282A JPS5918496A (en) | 1982-07-23 | 1982-07-23 | Method of dehumidifying gaseous waste processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5918496A true JPS5918496A (en) | 1984-01-30 |
Family
ID=14967804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12775282A Pending JPS5918496A (en) | 1982-07-23 | 1982-07-23 | Method of dehumidifying gaseous waste processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5918496A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473111A (en) * | 1992-10-07 | 1995-12-05 | Mitsubishi Denki Kabushiki Kaisha | Shielded enclosure for housing electronic components and manufacturing method thereof |
-
1982
- 1982-07-23 JP JP12775282A patent/JPS5918496A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473111A (en) * | 1992-10-07 | 1995-12-05 | Mitsubishi Denki Kabushiki Kaisha | Shielded enclosure for housing electronic components and manufacturing method thereof |
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