JPH0679074B2 - Hydrogen / tritium recovery system for fast breeder reactor - Google Patents
Hydrogen / tritium recovery system for fast breeder reactorInfo
- Publication number
- JPH0679074B2 JPH0679074B2 JP60143284A JP14328485A JPH0679074B2 JP H0679074 B2 JPH0679074 B2 JP H0679074B2 JP 60143284 A JP60143284 A JP 60143284A JP 14328485 A JP14328485 A JP 14328485A JP H0679074 B2 JPH0679074 B2 JP H0679074B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- gas
- tritium
- fast breeder
- breeder reactor
- 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
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 64
- 239000001257 hydrogen Substances 0.000 title claims description 63
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 60
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims description 52
- 229910052722 tritium Inorganic materials 0.000 title claims description 52
- 238000011084 recovery Methods 0.000 title claims description 36
- 239000007789 gas Substances 0.000 claims description 63
- 239000001307 helium Substances 0.000 claims description 20
- 229910052734 helium Inorganic materials 0.000 claims description 20
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical group [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 20
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 230000003197 catalytic effect Effects 0.000 claims description 11
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 4
- 239000001301 oxygen Substances 0.000 claims 4
- 229910052760 oxygen Inorganic materials 0.000 claims 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 19
- 229910052708 sodium Inorganic materials 0.000 description 19
- 239000011734 sodium Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000007791 dehumidification Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は、液体金属冷却型高速増殖炉の蒸気発生器伝熱
管において水側より液体金属側へ移行する水素および液
体金属側より水側へ移行するトリチウムを抑制して水素
及びトリチウムを回収するシステムに関する。Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to hydrogen that moves from the water side to the liquid metal side in a steam generator heat transfer tube of a liquid metal cooled fast breeder reactor, and to the water side from the liquid metal side. The present invention relates to a system for suppressing hydrogen and tritium which are suppressed.
一般に、ナトリウム等の液体金属は冷却材として用いる
液体金属冷却型高速増殖炉はループ型とタンク型に大別
される。ループ型高速増殖炉は第４図に示すように原子
炉容器41、炉心42、一次系配管44、中間熱交換器45、二
次系配管46、蒸気発生器47、水配管48、一次系循環ポン
プ49、二次系循環ポンプ50から構成され、原子炉容器41
内で発生した熱をナトリウム43により一次系配管44を介
して炉外へ取出し、取出した熱を中間熱交換器45及び二
次系配管46を介して蒸気発生器47で蒸気に変換するもの
である。Generally, liquid metal cooling type fast breeder reactors that use liquid metal such as sodium as a coolant are roughly classified into a loop type and a tank type. As shown in FIG. 4, the loop type fast breeder reactor has a reactor vessel 41, a core 42, a primary system piping 44, an intermediate heat exchanger 45, a secondary system piping 46, a steam generator 47, a water piping 48, a primary system circulation. It consists of a pump 49 and a secondary system circulation pump 50, and a reactor vessel 41.
The heat generated inside is taken out of the furnace by the sodium 43 through the primary system piping 44, and the extracted heat is converted into steam by the steam generator 47 through the intermediate heat exchanger 45 and the secondary system piping 46. is there.
また、タンク型高速増殖炉は第５図に示すように原子炉
容器41、炉心42、中間熱交換器45、二次系配管46、蒸気
発生器47、水配管48、一次系循環ポンプ49、二次系循環
ポンプ50から構成され、原子炉容器41内で発生した熱を
ナトリウム43により中間熱交換器45及び二次系配管46を
介して炉外へ取出し、取付した熱を蒸気発生器47で蒸気
に変換するものである。すなわち、ループ型高速増殖炉
とタンク型高速増殖炉ノズル違いは中間熱交換器45を原
子炉容器外へ設置するか原子炉容器内に収納するかに基
づき、いずれの場合も炉内で発生した熱はナトリウムに
より運ばれ、蒸気発生器47においてナトリウムと水の熱
交換が行われている。Further, the tank type fast breeder reactor has a reactor vessel 41, a core 42, an intermediate heat exchanger 45, a secondary system pipe 46, a steam generator 47, a water pipe 48, a primary system circulation pump 49, as shown in FIG. It is composed of a secondary system circulation pump 50 and takes out the heat generated in the reactor vessel 41 to the outside of the reactor by sodium 43 through the intermediate heat exchanger 45 and the secondary system pipe 46, and the attached heat is the steam generator 47. Is to be converted into steam. That is, the difference between the loop-type fast breeder reactor and the tank-type fast breeder reactor nozzle is based on whether the intermediate heat exchanger 45 is installed outside the reactor vessel or accommodated inside the reactor vessel, and in both cases, it occurred inside the reactor. The heat is carried by sodium, and heat exchange between sodium and water is performed in the steam generator 47.
このような高速増殖炉の蒸気発生器としては、第６図ま
たは第７図に示すようなものが提案されている。第６図
に示す蒸気発生器は伝熱管として一重壁型伝熱管を用い
たもので、この蒸気発生器は外胴61、内胴62、ナトリウ
ム入口ノズル63、ナトリウム出口ノズル64、水供給ノズ
ル65、蒸気出口ノズル66、一重壁型伝熱管67から構成さ
れている。また、第７図に示す蒸気発生器は伝熱管とし
て二重管型伝熱管を用いたもので、この蒸気発生器は外
胴71、バッフル板72、ナトリウム入口ノズル73、ナトリ
ウム出口ノズル74、水供給ノズル75、蒸気出口ノズル7
6、二重管型伝熱管77から構成されている。As such a steam generator for a fast breeder reactor, one shown in FIG. 6 or 7 has been proposed. The steam generator shown in FIG. 6 uses a single-wall type heat transfer tube as a heat transfer tube. This steam generator has an outer body 61, an inner body 62, a sodium inlet nozzle 63, a sodium outlet nozzle 64, and a water supply nozzle 65. The steam outlet nozzle 66 and the single-wall heat transfer tube 67 are included. The steam generator shown in FIG. 7 uses a double-tube heat transfer tube as a heat transfer tube. This steam generator has an outer shell 71, a baffle plate 72, a sodium inlet nozzle 73, a sodium outlet nozzle 74, and a water outlet. Supply nozzle 75, steam outlet nozzle 7
6. It consists of double tube type heat transfer tube 77.
ところで、これらの蒸気発生器の伝熱管には蒸気を含ん
だ高温の水が流れる伝熱管壁に腐食が発生する。そし
て、この腐食の酸化作用によって水側に水素が発生し、
発生した水素は伝熱管壁を透過してナトリウム側へ移行
することが知られている。そこで、高速増殖ではナトリ
ウム側へ移行した水素等を除去するために第４図及び第
５図に示す如く二次系配管46に二次浄化系配管52とコー
ルドトラップ53を設けているが、時間とともにコールド
トラップ53には水素が蓄積し、コールドトラップの機能
が低下するため寿命に達したコールドトラップを定期的
に交換している。従って、従来の高速増殖炉ではナトリ
ウム側へ移行した水素がコールドトラップの交換時期を
早める結果となり、運転保守の面から水素のナトリウム
側への移行の抑制が望まれている。By the way, in the heat transfer tubes of these steam generators, corrosion occurs on the walls of the heat transfer tubes through which high-temperature water containing steam flows. And hydrogen is generated on the water side due to the oxidizing action of this corrosion,
It is known that the generated hydrogen permeates the heat transfer tube wall and moves to the sodium side. Therefore, in high-speed breeding, a secondary purification system pipe 52 and a cold trap 53 are provided in the secondary system pipe 46 as shown in FIGS. 4 and 5 in order to remove hydrogen and the like transferred to the sodium side. At the same time, hydrogen accumulates in the cold trap 53 and the function of the cold trap deteriorates, so that the cold trap that has reached the end of its life is regularly replaced. Therefore, in the conventional fast breeder reactor, the hydrogen that has moved to the sodium side has the effect of accelerating the replacement time of the cold trap, and it is desired to suppress the transfer of hydrogen to the sodium side in terms of operation and maintenance.
一方、ナトリウム側からは炉内で燃料の三種核分裂やボ
ロンの放射化などにより生成されたトリチウムが一次系
配管44、中間熱交換器45、二次系配管46を経て蒸気発生
器47に流入し、伝熱管壁を透過して水側へ移行すること
が文献等により報告されている。水側へ移行したトリチ
ウムは浄化系にて環境への放出が防止されているが、水
側へ移行するトリチウムの量が少なければ被曝低減およ
び浄化系の負荷軽減などの面で好ましい。On the other hand, from the sodium side, tritium generated in the reactor by three-type fission of fuel and activation of boron flows into the steam generator 47 through the primary system pipe 44, the intermediate heat exchanger 45, and the secondary system pipe 46. , It has been reported in the literature that it passes through the wall of the heat transfer tube and moves to the water side. The tritium transferred to the water side is prevented from being released into the environment by the purification system, but if the amount of tritium transferred to the water side is small, it is preferable in terms of exposure reduction and reduction of the load on the purification system.
本発明はかかる事情に鑑みなされたもので、その目的は
蒸気発生器伝熱管における水素・トリチウムの移行を抑
制し、かつこれら水素およびトリチウムを回収すること
により高速増殖炉の信頼性および安全性の向上を図るこ
とにある。The present invention has been made in view of such circumstances, and an object thereof is to suppress the transfer of hydrogen / tritium in a steam generator heat transfer tube, and to collect the hydrogen and tritium to improve the reliability and safety of a fast breeder reactor. It is to improve.
本発明による高速増殖炉の水素・トリチウム回収システ
ムは上記の目的を達成するために、二重管型伝熱管の内
管と外管の間隙にガスを通流させるためのガス入口ノズ
ルおよびガス出口ノズルを有する蒸気発生器と、上記ガ
ス入口ノズルに接続されたガス供給源と、前記ガス出口
ノズルに接続されガス中の水素およびトリチウムを回収
除去する水素・トリチウム回収装置と、この水素・トリ
チウム回収装置で処理されたガスを排気する排気系とを
具備したことを特徴とするものである。In order to achieve the above object, the hydrogen / tritium recovery system for a fast breeder reactor according to the present invention has a gas inlet nozzle and a gas outlet for allowing gas to flow through the gap between the inner tube and the outer tube of the double-tube heat transfer tube. A steam generator having a nozzle, a gas supply source connected to the gas inlet nozzle, a hydrogen / tritium recovery device connected to the gas outlet nozzle to recover and remove hydrogen and tritium in the gas, and the hydrogen / tritium recovery An exhaust system for exhausting gas processed by the apparatus is provided.
以下、第１図ないし第３図を参照して本発明の実施例を
説明する。An embodiment of the present invention will be described below with reference to FIGS.
第１図は本システムの概略構成を示すブロック図で、こ
の水素・トリチウム抑制システムはヘリウムガス供給源
１、蒸気発生器３、水素・トリチウム回収装置５および
排気系７から構成される。FIG. 1 is a block diagram showing a schematic configuration of the present system. This hydrogen / tritium suppression system comprises a helium gas supply source 1, a steam generator 3, a hydrogen / tritium recovery device 5 and an exhaust system 7.
蒸気発生器３は伝熱管として二重管型伝熱管12を用いた
もので、外胴11にはナトリウム入口ノズル13、ナトリウ
ム出口ノズル14、冷却水入口ノズル15および蒸気出口ノ
ズル16の他に、二重管型伝熱管11の内管と外管の間隙に
ガスを通流させるためのガス入口ノズル17とガス出口ノ
ズル18が設けられている。そして、ガス入口ノズル17に
はガス供給配管２を介してヘリウムガス供給源１が接続
され、ガス出口ノズル18にはガス排出配管４を介して水
素・トリチウム回収装置５が接続されている。The steam generator 3 uses a double-tube heat transfer tube 12 as a heat transfer tube, and in addition to the sodium inlet nozzle 13, the sodium outlet nozzle 14, the cooling water inlet nozzle 15 and the steam outlet nozzle 16 in the outer shell 11, A gas inlet nozzle (17) and a gas outlet nozzle (18) for passing gas through the gap between the inner and outer tubes of the double-tube heat transfer tube (11) are provided. The gas inlet nozzle 17 is connected to the helium gas supply source 1 via the gas supply pipe 2, and the gas outlet nozzle 18 is connected to the hydrogen / tritium recovery device 5 via the gas discharge pipe 4.
水素・トリチウム回収装置５は第２図に示すように、蒸
気発生器３からのヘリウムガスに空気を混入させる空気
混入機構21と、この空気混入機構21により混入された空
気を利用してヘリウムガス中の水素およびナトリウムを
酸化させる触媒酸化器22と、この触媒酸化器22で酸化さ
れた水素およびトリチウムを吸着除去する吸着除湿塔27
a,27bから構成されている。そして、吸着除湿塔27a,27b
は100％容量のものが２台並列に設置されており、どち
らかの吸着材28a,28bの容量が一杯になった時に他方の
吸着除湿塔への切換えができるようになっている。ま
た、水素・トリチウム回収装置５の出口には第１図に示
すようにガス排出配管６を介して排気系７が接続されて
いる。As shown in FIG. 2, the hydrogen / tritium recovery apparatus 5 utilizes an air mixing mechanism 21 for mixing air into the helium gas from the steam generator 3 and the air mixed by the air mixing mechanism 21 for the helium gas. A catalytic oxidizer 22 that oxidizes hydrogen and sodium therein, and an adsorption dehumidifying tower 27 that adsorbs and removes hydrogen and tritium oxidized by the catalytic oxidizer 22.
It is composed of a and 27b. And the adsorption dehumidification towers 27a, 27b
Are installed in parallel with each other, and when one of the adsorbents 28a and 28b has a full capacity, it is possible to switch to the other adsorption dehumidifying tower. An exhaust system 7 is connected to the outlet of the hydrogen / tritium recovery device 5 via a gas exhaust pipe 6 as shown in FIG.
次に上記の如く構成された本システムの作用について説
明する。Next, the operation of the present system configured as described above will be described.
まず蒸気発生器３のガス入口ノズル17にヘリウムガス供
給源１からガス供給配管２を通じてヘリウムガスを供給
し、二重管型伝熱管12の内管と外管の間を通流させる。
二重管型伝熱管12の内管と外管の間を流れたヘリウムガ
スは水素およびトリチウムを含んでガス出口ノズル18か
ら流出し、ガス排出配管４を通って水素・トリチウム回
収装置５へ送られる。First, helium gas is supplied from the helium gas supply source 1 to the gas inlet nozzle 17 of the steam generator 3 through the gas supply pipe 2 to flow between the inner pipe and the outer pipe of the double-tube heat transfer tube 12.
The helium gas flowing between the inner tube and the outer tube of the double-tube heat transfer tube 12 contains hydrogen and tritium, flows out from the gas outlet nozzle 18, and is sent to the hydrogen / tritium recovery device 5 through the gas discharge pipe 4. To be
水素・トリチウム回収装置５では蒸気発生器３からのヘ
リウムガスに空気混入機構21より空気が混入され、空気
と共に触媒酸化器22へ導入される。触媒酸化器22に導入
されたヘリウムガスは触媒23によりガス中の水素および
トリチウムが酸化され、それぞれH2O，HTO(T2O)の水分
に転換される。そして、水分となった水素およびトリチ
ウムはヘリウムガスや空気とともに配管24を通り、さら
に分岐配管25aおよび弁26aを経て一方の吸着除湿塔27a
へ送られる。In the hydrogen / tritium recovery device 5, the helium gas from the steam generator 3 is mixed with air from the air mixing mechanism 21 and introduced into the catalytic oxidizer 22 together with the air. The hydrogen and tritium in the helium gas introduced into the catalytic oxidizer 22 are oxidized by the catalyst 23 and converted into water of H 2 O and HTO (T 2 O), respectively. Then, the hydrogen and tritium that have become water pass through the pipe 24 together with the helium gas and the air, and further pass through the branch pipe 25a and the valve 26a to the one adsorption dehumidification tower 27a.
Sent to.
吸着除湿塔27aでは吸着材28aによりガス中の水分（H
2O，HTO(T2O)）が吸着除去され、残りの乾燥したガスは
弁29a,ガス排出配管６を通り、排気系７より外部へ放出
される。そして、吸着除湿塔27aに充填された吸着材28a
の容量が一杯になった時は弁26a,29aを閉じ、弁26a,29b
を開けることによりH2O，HTO(T2O)を含んだガスは他方
の吸着除湿塔27bへ導入されるので、この間に吸着除湿
塔27aでは吸着材の再生を行なう。In the adsorption dehumidification tower 27a, the water content (H
2 O, HTO (T 2 O)) is adsorbed and removed, and the remaining dry gas is discharged to the outside from the exhaust system 7 through the valve 29a and the gas exhaust pipe 6. Then, the adsorbent 28a filled in the adsorption dehumidification tower 27a
When the capacity of the valve is full, the valves 26a and 29a are closed and the valves 26a and 29b are closed.
Since the gas containing H 2 O and HTO (T 2 O) is introduced into the other adsorption / dehumidification tower 27b by opening, the adsorbent is regenerated in the adsorption / dehumidification tower 27a during this period.
次に本システムを1000MWe級のループ型高速増殖炉に適
用した場合の試算結果を表−１に示す。Next, Table-1 shows the trial calculation results when this system is applied to a 1000 MWe class loop type fast breeder reactor.
この表−１は３ループの１ループ分について試算したも
ので、金属を透過する水素の量は一般に次式で表わせ
る。 This Table-1 is a trial calculation for one loop of three loops, and the amount of hydrogen that permeates the metal can be generally expressed by the following equation.
ここで、K:金属の水素透過計数（Torr1/2・cm2/sec）、
A:透過面積（cm2）、d:金属の厚さ（cm）、P1：高水素
分圧側の水素分圧（Torr）、P2：低水素分圧側の水素分
圧（Torr）である。 Where K: hydrogen permeation coefficient of metal (Torr 1/2 · cm 2 / sec),
A: Permeation area (cm 2 ), d: Metal thickness (cm), P 1 : High hydrogen partial pressure side hydrogen partial pressure (Torr), P 2 : Low hydrogen partial pressure side hydrogen partial pressure (Torr) .
今、Ｋを水素に対し１×10-6、トリチウムに対し１×10
-7を用いて透過量を求めると、ヘリウム中への水素の移
行量は670Ncm3/min、ナトリウム中への水素の移行量は1
07Ncm3/minとなり、ヘリウム中へのトリチウムの移行量
は１×10-4Ci/minとなる。これは二重管の間隙を流れる
ヘリウム流量を16Nl/minとした場合で、水素濃度は爆発
限界以下の４％以下となるようにしている。これにより
ナトリウム中への水素の移行量は107/670＝0.16倍に抑
制され、また水側へのトリチウムの移行もほとんど抑制
されるので、水素およびトリチウムのほとんどはヘリウ
ム中へ移行することになる。従って、ヘリウム中に移行
した水素およびトリチウムを水素・トリチウム回収装置
５で回収することにより、環境へのトリチウムの放出を
防止できるとともに二次系コールドトラップの交換時期
を大幅に延長できる。Now, K is 1 × 10 -6 for hydrogen and 1 × 10 6 for tritium.
-7 was used to determine the permeation rate, the transfer rate of hydrogen into helium was 670 Ncm 3 / min, and the transfer rate of hydrogen into sodium was 1
It is 07 Ncm 3 / min, and the amount of tritium transferred into helium is 1 × 10 -4 Ci / min. This is when the flow rate of helium flowing through the gap between the double tubes is 16 Nl / min, and the hydrogen concentration is kept below 4%, which is below the explosion limit. As a result, the amount of hydrogen transferred to sodium is suppressed to 107/670 = 0.16 times, and the transfer of tritium to the water side is almost suppressed, so that most of hydrogen and tritium are transferred to helium. . Therefore, by recovering hydrogen and tritium transferred into helium by the hydrogen / tritium recovery device 5, release of tritium to the environment can be prevented and the replacement time of the secondary system cold trap can be greatly extended.
第３図は第２図に示した触媒酸化器22と吸着除湿塔27a,
27bとの間に冷却回収器31を設置した場合の実施例を示
す図で、この実施例では触媒酸化器22で酸化されたH2O
およびHTO(T2O)は冷却器32,冷媒配管33間を循環する冷
媒により冷却されている冷却回収器31内に導入される。
冷却回収器31内に導入されたH2OおよびHTO(T2O)は冷却
凝縮され、液滴としてドレン配管34および弁35を経て回
収タンク37に回収される。そして、未回収の水分は前述
した如く後段の吸着除湿塔27a,27bで回収される。FIG. 3 shows the catalytic oxidizer 22 and the adsorption dehumidification tower 27a shown in FIG.
27b is a diagram showing an example in which a cooling recovery unit 31 is installed between the cooling recovery unit 27b and 27b. In this example, H 2 O oxidized by the catalytic oxidizer 22 is used.
And HTO (T 2 O) are introduced into the cooling / recovery device 31 cooled by the refrigerant circulating between the cooler 32 and the refrigerant pipe 33.
The H 2 O and HTO (T 2 O) introduced into the cooling / recovery device 31 are cooled and condensed, and are recovered as droplets in the recovery tank 37 via the drain pipe 34 and the valve 35. Then, the unrecovered water is recovered in the adsorption / dehumidification towers 27a and 27b in the latter stage as described above.
このように触媒酸化器22と吸着除湿塔27a,27bとの間に
冷却回収器31を設置することにより、例えば冷却回収器
31を０℃程度に冷却しておくとガス中のH2OおよびHTO(T
2O)は約4vol％のうち85％が液滴として回収タンク36に
回収され、残りの15％（約6000volppm）が後段の吸着除
湿塔27a,27bで回収されることになるので、吸着除湿塔
の負荷は第２図に示した水素・トリチウム回収装置より
約15％程度軽減され、より効率良く水素およびトリチウ
ムを回収することができる。By thus installing the cooling / recovering device 31 between the catalytic oxidizer 22 and the adsorption / dehumidifying towers 27a, 27b, for example, the cooling / recovering device
If 31 is cooled to about 0 ° C, H 2 O and HTO (T
2 O) 85% of the approximately 4 vol% is recovered in the recovery tank 36 as droplets, the remaining 15% (about 6000Volppm) is subsequent adsorption removal tower 27a, so will be recovered by 27b, the adsorption dehumidifying The load on the tower is reduced by about 15% compared with the hydrogen / tritium recovery device shown in FIG. 2, and hydrogen and tritium can be recovered more efficiently.
なお、上記実施例では二重管型伝熱管の内管と外管の間
を流すガスとしてヘリウムガスを用いたが、これはヘリ
ウムの伝熱特性が優れていることや、不活性ガスのため
伝熱管等に悪影響を及ぼさないことなどを考慮した結果
である。従って、ヘリウムの代りにアルゴンや窒素等を
用いても初期の目的は達成可能である。In the above example, helium gas was used as the gas flowing between the inner tube and the outer tube of the double-tube heat transfer tube, but this is due to the excellent heat transfer characteristics of helium and the inert gas. This is the result considering that it does not have a bad influence on the heat transfer tube and the like. Therefore, the initial purpose can be achieved by using argon or nitrogen instead of helium.
以上述べたように本発明による高速増殖炉の水素・トリ
チウム回収システムは、二重管型伝熱管の内管と外管の
間隙にガスを通流させるためのガス入口ノズルおよびガ
ス出口ノズルを有する蒸気発生器と、上記ガス入口ノズ
ルに接続されたガス供給源と、前記ガス出口ノズルに接
続されガス中の水素およびトリチウムを回収除去する水
素・トリチウム回収装置と、この水素・トリチウム回収
装置で処理されたガスを排気する排気系とを具備したも
のである。従って、本発明によれば蒸気発生器伝熱管に
おける水素・トリチウムの移行を伝熱管の内管と外管の
間を流れるガスにより抑制できるので、高速増殖炉の信
頼性および安全性を大幅に向上できる。As described above, the hydrogen / tritium recovery system of the fast breeder reactor according to the present invention has the gas inlet nozzle and the gas outlet nozzle for passing the gas through the gap between the inner tube and the outer tube of the double tube heat transfer tube. A steam generator, a gas supply source connected to the gas inlet nozzle, a hydrogen / tritium recovery device connected to the gas outlet nozzle for recovering and removing hydrogen and tritium in the gas, and treated by the hydrogen / tritium recovery device And an exhaust system for exhausting the generated gas. Therefore, according to the present invention, the transfer of hydrogen / tritium in the steam generator heat transfer tube can be suppressed by the gas flowing between the inner tube and the outer tube of the heat transfer tube, so that the reliability and safety of the fast breeder reactor are significantly improved. it can.
第１図は本発明による水素・トリチウム回収システムの
一実施例を示すブロック図、第２図は同システムの水素
・トリチウム回収装置の一例を示す構成図、第３図は水
素・トリチウム回収装置の他の実施例を示す構成図、第
４図ないし第７図は従来例を説明するための図で、第４
図はループ型高速増殖炉の概略構成図、第５図はタンク
型高速増殖炉の概略構成図、第６図は一重壁型伝熱管を
用いた蒸気発生器の概略断面図、第７図は二重管型伝熱
管を用いた蒸気発生器の概略断面図である。 １…ヘリウムガス供給源、３…蒸気発生器、５…水素・
トリチウム回収装置、７…排気系、12…二重管型伝熱
管、17…ガス入口ノズル、18…ガス出口ノズル、21…空
気混入機構、22…触媒酸化器、27a,27b…吸着除湿塔、3
1…冷却回収器。FIG. 1 is a block diagram showing an embodiment of a hydrogen / tritium recovery system according to the present invention, FIG. 2 is a configuration diagram showing an example of a hydrogen / tritium recovery device of the system, and FIG. 3 is a hydrogen / tritium recovery device. FIG. 4 is a configuration diagram showing another embodiment, and FIGS. 4 to 7 are views for explaining a conventional example.
Fig. 5 is a schematic configuration diagram of a loop type fast breeder reactor, Fig. 5 is a schematic configuration diagram of a tank type fast breeder reactor, Fig. 6 is a schematic sectional view of a steam generator using a single wall type heat transfer tube, and Fig. 7 is It is a schematic sectional drawing of the steam generator which used the double pipe | tube heat transfer tube. 1 ... Helium gas supply source, 3 ... Steam generator, 5 ... Hydrogen
Tritium recovery device, 7 ... Exhaust system, 12 ... Double-tube heat transfer tube, 17 ... Gas inlet nozzle, 18 ... Gas outlet nozzle, 21 ... Air mixing mechanism, 22 ... Catalytic oxidizer, 27a, 27b ... Adsorption dehumidifying tower, 3
1 ... Cooling collector.
Claims (6)
を通流させるためのガス入口ノズルおよびガス出口ノズ
ルを有する蒸気発生器と、上記ガス入口ノズルに接続さ
れたガス供給源と、前記ガス出口ノズルに接続されガス
中の水素およびトリチウムを回収除去する水素・トリチ
ウム回収装置と、この回収装置で処理されたガスを排気
する排気系とを具備したことを特徴とする高速増殖炉の
水素・トリチウム回収システム。1. A steam generator having a gas inlet nozzle and a gas outlet nozzle for passing a gas through a gap between an inner tube and an outer tube of a double-tube heat transfer tube, and a gas connected to the gas inlet nozzle. It is characterized by comprising a supply source, a hydrogen / tritium recovery device connected to the gas outlet nozzle for recovering and removing hydrogen and tritium in the gas, and an exhaust system for exhausting the gas processed by the recovery device. Hydrogen / tritium recovery system for fast breeder reactor.
生器からのガスに酸素を含むガスを混入させるガス混入
機構と、このガス混入機構により混入された酸素を利用
してガス中の水素およびトリチウムを酸化させる触媒酸
化器と、この触媒酸化器で酸化された水素およびトリチ
ウムを吸着除去する吸着除湿塔からなることを特徴とす
る特許請求の範囲第（１）項記載の高速増殖炉の水素・
トリチウム回収システム。2. The hydrogen / tritium recovery apparatus comprises a gas mixing mechanism for mixing a gas containing oxygen into a gas from a steam generator, and oxygen contained in the gas by the oxygen mixed by the gas mixing mechanism. The hydrogen of the fast breeder reactor according to claim 1, comprising a catalytic oxidizer for oxidizing tritium and an adsorption dehumidifying tower for adsorbing and removing hydrogen and tritium oxidized by the catalytic oxidizer.・
Tritium recovery system.
並列に設置され、切換運転が可能であることを特徴とす
る特許請求の範囲第（２）項記載の高速増殖炉の水素・
トリチウム回収システム。3. The hydrogen for a fast breeder reactor according to claim (2), characterized in that two adsorption dehumidifying towers each having a capacity of 100% are installed in parallel to enable switching operation.・
Tritium recovery system.
化器と吸着除湿塔との間に冷却回収器を備えていること
を特徴とする特許請求の範囲第（２）項記載の高速増殖
炉の水素・トリチウム回収システム。4. The fast breeder reactor according to claim (2), wherein the hydrogen / tritium recovery device includes a cooling recovery device between the catalytic oxidizer and the adsorption dehumidifying tower. Hydrogen / tritium recovery system.
徴とする特許請求の範囲第（２）項記載の高速増殖炉の
水素・トリチウム回収システム。5. The hydrogen / tritium recovery system for a fast breeder reactor according to claim (2), wherein the gas containing oxygen is air.
通流するガスはヘリウムガスであることを特徴とする特
許請求の範囲第（１）項記載の高速増殖炉の水素・トリ
チウム回収システム。6. The fast breeder reactor according to claim 1, wherein the gas flowing through the gap between the inner tube and the outer tube of the double tube heat transfer tube is helium gas. Hydrogen / tritium recovery system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60143284A JPH0679074B2 (en) | 1985-06-29 | 1985-06-29 | Hydrogen / tritium recovery system for fast breeder reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60143284A JPH0679074B2 (en) | 1985-06-29 | 1985-06-29 | Hydrogen / tritium recovery system for fast breeder reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623697A JPS623697A (en) | 1987-01-09 |
| JPH0679074B2 true JPH0679074B2 (en) | 1994-10-05 |
Family
ID=15335151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60143284A Expired - Lifetime JPH0679074B2 (en) | 1985-06-29 | 1985-06-29 | Hydrogen / tritium recovery system for fast breeder reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679074B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021166613A1 (en) * | 2020-02-20 | 2021-08-26 | 住友電装株式会社 | Connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2678880B2 (en) * | 1994-03-17 | 1997-11-19 | 株式会社タニタ | Integrated thin sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145033A (en) * | 1984-01-09 | 1985-07-31 | 星電器製造株式会社 | Automatic bread producing machine |
-
1985
- 1985-06-29 JP JP60143284A patent/JPH0679074B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145033A (en) * | 1984-01-09 | 1985-07-31 | 星電器製造株式会社 | Automatic bread producing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021166613A1 (en) * | 2020-02-20 | 2021-08-26 | 住友電装株式会社 | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS623697A (en) | 1987-01-09 |
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