JP2001321649A - Fluid mixing device - Google Patents
Fluid mixing deviceInfo
- Publication number
- JP2001321649A JP2001321649A JP2000145900A JP2000145900A JP2001321649A JP 2001321649 A JP2001321649 A JP 2001321649A JP 2000145900 A JP2000145900 A JP 2000145900A JP 2000145900 A JP2000145900 A JP 2000145900A JP 2001321649 A JP2001321649 A JP 2001321649A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- pipe
- mixing device
- temperature
- shaped joint
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ある温度の主流流
体に対し異なる温度の支流流体を混合して、均一な温度
分布の混合流体を生成する流体混合装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid mixing apparatus for mixing a mainstream fluid at a certain temperature with a branch fluid at a different temperature to produce a mixed fluid having a uniform temperature distribution.
【０００２】[0002]
【従来の技術】化学プラントあるいは発電プラントにお
いては、設定温度の蒸気を得るために低温蒸気に高温蒸
気を混合する流体混合装置が使用されている。2. Description of the Related Art In a chemical plant or a power plant, a fluid mixing device for mixing high-temperature steam with low-temperature steam in order to obtain steam at a set temperature is used.
【０００３】例えば、ガスタービンの高温排気を排熱回
収ボイラに導いて蒸気を発生させ、得られた蒸気で蒸気
タービンを駆動するコンバインドサイクル発電プラント
においては、排熱回収ボイラで発生した蒸気をガスター
ビンの高温部品の冷却用として使用している。この場
合、冷却用蒸気とガスタービン等の入熱で高温になった
蒸気とを流体混合器で混合する。そして、設定温度の蒸
気を得るために低温蒸気に高温蒸気を混合したり、また
は高温蒸気に低温蒸気を混合したりしている。For example, in a combined cycle power plant in which high-temperature exhaust gas from a gas turbine is guided to an exhaust heat recovery boiler to generate steam and the obtained steam drives a steam turbine, the steam generated from the exhaust heat recovery boiler is Used for cooling high-temperature components of turbines. In this case, the cooling steam and the steam heated to a high temperature by the heat input of the gas turbine or the like are mixed by the fluid mixer. Then, in order to obtain steam at a set temperature, low-temperature steam is mixed with high-temperature steam or high-temperature steam is mixed with low-temperature steam.
【０００４】従来、温度の異なる流体を合流混合する流
体混合装置としてＴ字型の流体混合装置が知られてい
る。Heretofore, a T-shaped fluid mixing device has been known as a fluid mixing device for merging and mixing fluids having different temperatures.
【０００５】図５は、従来のＴ字型の流体混合装置の一
例を示す断面図である。主流配管１には、たとえば低温
の流体である第１の流体が流れ、支流配管２には高温の
流体である第２の流体が流れる。そして、Ｔ字型継手３
により主流配管１と支流配管２とが接続される。つま
り、支流配管２は主流配管１にＴ字状に接続されてい
る。Ｔ字型継手３の内部には、主流配管１に沿って主流
配管１の径より絞られたフロースリーブ４が装備されて
いる。FIG. 5 is a sectional view showing an example of a conventional T-shaped fluid mixing device. For example, a first fluid that is a low-temperature fluid flows through the main flow pipe 1, and a second fluid that is a high-temperature fluid flows through the branch pipe 2. And T-shaped joint 3
Connects the mainstream pipe 1 and the branch pipe 2. That is, the branch pipe 2 is connected to the main flow pipe 1 in a T-shape. Inside the T-shaped joint 3, there is provided a flow sleeve 4 which is narrowed along the main flow pipe 1 from the diameter of the main flow pipe 1.
【０００６】そして、フロースリーブ４を介して、第１
の流体が温度の異なる第２の流体に混合される。このよ
うな流体混合装置は安価であり、また、混合される流体
の温度差があまりないところに多く用いられている。Then, through the flow sleeve 4, the first
Are mixed with a second fluid having a different temperature. Such a fluid mixing device is inexpensive and is often used where there is not much difference in temperature of the fluid to be mixed.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、コンバ
インドサイクル発電プラントにおける蒸気のように、扱
う流体の温度差が大きい場合には、その大きな温度差を
持つ２つの流体の接触部となるＴ字型継手３とフロース
リーブ４とに過大の熱応力が発生する。そして、その熱
応力の繰り返し振動が起こり、Ｔ字型継手３が損傷破損
するおそれがある。However, when the temperature difference between the fluids to be handled is large, such as steam in a combined cycle power plant, a T-shaped joint which serves as a contact portion between two fluids having the large temperature difference. Excessive thermal stress is generated in the flow sleeve 3 and the flow sleeve 4. Then, the thermal stress is repeatedly vibrated, and the T-shaped joint 3 may be damaged and damaged.
【０００８】そこで、流体混合装置の熱応力を緩和する
ために、図６に示す構造の流体混合装置が用いられてい
る。これは、Ｔ字型継手３の一端より口径の細い支流管
５を挿入し、先端部の多孔部１２の透孔から流体を吹き
出し混合するものである。しかしながら、この流体混合
装置では支流管５内を流れる流体の流量が増した場合に
圧力損失が増大し、決められた流量の確保が困難になる
ことで、生成した流体を安定して望ましい温度に保てな
くなる可能性がある。In order to alleviate the thermal stress of the fluid mixing device, a fluid mixing device having a structure shown in FIG. 6 is used. In this method, a tributary pipe 5 having a small diameter is inserted from one end of a T-shaped joint 3, and a fluid is blown out from a through hole of a porous portion 12 at a distal end to mix. However, in this fluid mixing device, when the flow rate of the fluid flowing in the branch pipe 5 increases, the pressure loss increases, and it becomes difficult to maintain a predetermined flow rate. May not be maintained.
【０００９】本発明の目的は、混合される双方の流体の
温度差が大きくなるときも、過大な熱応力が発生するの
を回避し、さらに混合される流体の流量が増しても、生
成した流体を安定して望ましい温度に保持することので
きる流体混合継手を提供することにある。An object of the present invention is to prevent the occurrence of excessive thermal stress even when the temperature difference between the two fluids to be mixed is large, and to produce the fluid even when the flow rate of the mixed fluid is increased. An object of the present invention is to provide a fluid mixing joint that can stably maintain a fluid at a desired temperature.
【００１０】[0010]
【課題を解決するための手段】請求項１の発明に係わる
流体混合装置は、ある温度の第１の流体を導く主流配管
と、この第１の流体と混合される異なる温度の第２の流
体を導く支流配管と、前記主流配管と前記支流配管とを
Ｔ字に接続するＴ字型流体継手とを備えた流体混合装置
において、前記Ｔ字型継手を主流配管に接続するための
レジュ−シングピ−スと、前記レジュ−シングピ−スに
より挟み込む様に前記Ｔ字型継手内部に固定され前記第
２の流体を第１の流体中に吹き出す複数個の噴出口を有
する内管と、前記Ｔ字型継手の内面と前記内管との間に
形成された流体室とを備えたことを特徴とする。According to a first aspect of the present invention, there is provided a fluid mixing apparatus, comprising: a main flow pipe for introducing a first fluid having a certain temperature; and a second fluid having a different temperature mixed with the first fluid. A fluid mixing device comprising: a branch pipe for guiding the main flow; and a T-shaped fluid coupling for connecting the main flow pipe and the tributary pipe in a T-shape, a reducing pipe for connecting the T-shaped joint to the main flow pipe. An inner pipe having a plurality of ejection ports fixed inside the T-shaped joint so as to be sandwiched by the resumed pieces and for discharging the second fluid into the first fluid; A fluid chamber formed between the inner surface of the mold joint and the inner pipe is provided.
【００１１】請求項１の発明に係わる流体混合装置にお
いては、第１の流体はＴ字型継手内の内管に流入する。
一方、第２の流体はＴ字型継手内の流体室に流入し、内
管の外表面に接触して第１の流体と熱交換する。次い
で、内管の噴出口を経由して内管内に流入して第１の流
体と混合される。したがって、第１の流体と第２の流体
との温度差が大きい場合においても、Ｔ字型継手及び内
管の一部が極度に高温または低温になるのを防ぐことが
でき、Ｔ字型継手及び内管に過大な熱応力が生じるのを
防止できる。また、Ｔ字型継手内の面積の大きい内管表
面の複数の噴出口全体から第２の流体を第１の流体に供
給することができるので圧損も小さく維持でき、大流量
の調整も可能となり、従って、合流混合流体の温度も制
度良く制御可能となる。[0011] In the fluid mixing device according to the first aspect of the present invention, the first fluid flows into the inner pipe in the T-shaped joint.
On the other hand, the second fluid flows into the fluid chamber in the T-shaped joint, and contacts the outer surface of the inner pipe to exchange heat with the first fluid. Next, the fluid flows into the inner pipe via the outlet of the inner pipe and is mixed with the first fluid. Therefore, even when the temperature difference between the first fluid and the second fluid is large, it is possible to prevent the T-shaped joint and a part of the inner tube from being extremely high or low in temperature, and the T-shaped joint can be prevented. And it can prevent that an excessive thermal stress is generated in the inner tube. In addition, since the second fluid can be supplied to the first fluid from the entire plurality of jet ports on the inner pipe surface having a large area in the T-shaped joint, the pressure loss can be kept small and the large flow rate can be adjusted. Therefore, the temperature of the combined fluid can also be controlled with high accuracy.
【００１２】請求項２の発明に係わる流体混合装置は、
請求項１の発明において、前記内管の噴出口にノズルを
設けたことを特徴とする。[0012] The fluid mixing device according to the second aspect of the present invention comprises:
The invention according to claim 1 is characterized in that a nozzle is provided at an ejection port of the inner tube.
【００１３】請求項２の発明に係わる流体混合装置にお
いては、各ノズルを通して支流配管を流れる第２の流体
を第１の流体に混合することが可能になる。特に、主流
配管内の第１の流体の流動方向に傾斜して各ノズルを配
置すると、主流配管の第１の流体の流れを乱さず第２の
流体を混合することが可能になる。In the fluid mixing device according to the second aspect of the present invention, the second fluid flowing through the branch pipe through each nozzle can be mixed with the first fluid. In particular, when the nozzles are arranged obliquely in the flow direction of the first fluid in the mainstream pipe, the second fluid can be mixed without disturbing the flow of the first fluid in the mainstream pipe.
【００１４】請求項３の発明に係わる流体混合装置は、
請求項１の発明において、前記内管の中心軸線が主流配
管に接続されるＴ字型継手の中心軸線に対して偏心した
位置となるように前記内管を配設したことを特徴とす
る。According to a third aspect of the present invention, there is provided a fluid mixing device comprising:
The invention according to claim 1 is characterized in that the inner pipe is disposed such that the center axis of the inner pipe is eccentric to the center axis of the T-shaped joint connected to the mainstream pipe.
【００１５】請求項３の発明に係わる流体混合装置にお
いては、支流配管から導かれる第２の流体が流れ込むＴ
字型継手内の流体室が大きくなるので、貫通口を経由し
て第１の流体中に流入する際により温度を均一にでき
る。従って、混合流体の温度はさらに効果的に均一化さ
れる。[0015] In the fluid mixing apparatus according to the third aspect of the present invention, the second fluid introduced from the branch pipe flows into the fluid mixing device.
Since the fluid chamber in the U-shaped joint becomes large, the temperature can be made more uniform when flowing into the first fluid via the through hole. Therefore, the temperature of the mixed fluid is more effectively equalized.
【００１６】請求項４の発明に係わる流体混合装置は、
請求項１乃至請求項３のいずれか１項の発明において、
前記内管の一方の端は前記レジュ−シングピ−スに固定
され、残りの一端は前記レジュ−シングピ−スとの間に
軸方向に移動可能な間隙を設けて装備したことを特徴と
する。A fluid mixing device according to a fourth aspect of the present invention comprises:
In the invention according to any one of claims 1 to 3,
One end of the inner tube is fixed to the reducing piece, and the other end is provided with an axially movable gap between the reducing piece and the reducing piece.
【００１７】請求項４の発明に係わる流体混合装置にお
いては、内管の熱による伸びを拘束せず、内管が主流配
管の管軸方向に熱膨張できるので、内管に過大な熱応力
が発生することを防止できる。In the fluid mixing device according to the fourth aspect of the present invention, since the inner pipe can be thermally expanded in the axial direction of the main flow pipe without restricting the expansion of the inner pipe due to heat, excessive thermal stress is applied to the inner pipe. It can be prevented from occurring.
【００１８】請求項５の発明に係わる流体混合装置は、
請求項１及至請求項４のいずれか１項の発明において、
前記内管の材質として、前記Ｔ字型継手の材質と同等か
またはわずかに小さい熱膨張係数の高Ｃｒ鋼を使用した
ことを特徴とする。The fluid mixing device according to the invention of claim 5 is:
In the invention according to any one of claims 1 to 4,
As a material of the inner pipe, a high Cr steel having a thermal expansion coefficient equal to or slightly smaller than the material of the T-shaped joint is used.
【００１９】請求項５の発明に係わる流体混合装置にお
いては、内管が熱膨張による影響を受けず、高温流体と
低温流体による温度交番を受けても熱衝撃を防止する。In the fluid mixing device according to the fifth aspect of the present invention, the thermal shock is prevented even if the inner tube is not affected by the thermal expansion and receives the temperature alternation of the high temperature fluid and the low temperature fluid.
【００２０】[0020]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１は本発明の第１の実施の形態に係わる流体混
合装置の構成図である。所定の温度の第１の流体を導く
主流配管１とその所定の温度と異なる温度の第２の流体
を導く支流配管２との合流部にＴ字型継手３が設けら
れ、このＴ字型継手３と主流配管１とはレジュ−シング
ピ−ス６で接続されている。Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of a fluid mixing device according to a first embodiment of the present invention. A T-shaped joint 3 is provided at a junction of a main flow pipe 1 for guiding a first fluid at a predetermined temperature and a branch pipe 2 for guiding a second fluid at a temperature different from the predetermined temperature. 3 and the main flow pipe 1 are connected by a reducing piece 6.
【００２１】そして、Ｔ字型継手３内にはレジュ−シン
グピ−ス６で挟み込む様に内管７を固定装備し、内管７
とＴ字型継手３との間に環状の流体室８を形成してい
る。また、内管７の壁面を貫いて複数個の貫通口９が設
けられ、第２の流体が内管７の内部を流れる第１の流体
中に噴出される構成となっている。An inner pipe 7 is fixedly mounted in the T-shaped joint 3 so as to be sandwiched between the reducing pieces 6.
And a T-shaped joint 3 to form an annular fluid chamber 8. Further, a plurality of through-holes 9 are provided through the wall surface of the inner pipe 7, and the second fluid is ejected into the first fluid flowing inside the inner pipe 7.
【００２２】図２は図１のＡ−Ａ線での断面図である。
図２に示されるように、内管７の内径は主流配管１の内
径に合わせている設けられている。そして、内管７はそ
の周囲に流体室８を形成し、内管７の内円周上には複数
個の貫通口９が間隔を保って配置されている。FIG. 2 is a sectional view taken along line AA of FIG.
As shown in FIG. 2, the inner diameter of the inner pipe 7 is provided so as to match the inner diameter of the mainstream pipe 1. The inner tube 7 forms a fluid chamber 8 around the inner tube 7, and a plurality of through-holes 9 are arranged on the inner circumference of the inner tube 7 at intervals.
【００２３】次に動作を説明する。高温流体である第２
の流体は、支流配管２からＴ字型継手３と内管７との間
に形成された流体室８に流入する。流体室８に流入した
第２の流体は、内管７の表面と接触して熱交換され、内
管７内を流れる低温の第１の流体の温度に近づいて温度
は均一化される。Next, the operation will be described. The second is a high temperature fluid
Flows into the fluid chamber 8 formed between the T-shaped joint 3 and the inner pipe 7 from the branch pipe 2. The second fluid that has flowed into the fluid chamber 8 contacts the surface of the inner pipe 7 and exchanges heat, and approaches the temperature of the low-temperature first fluid flowing in the inner pipe 7 so that the temperature is made uniform.
【００２４】次いで、第２の流体は内管７の内円周面に
設けられた貫通口９を通って、内管７内を流れている第
１の流体中に流入混合される。かくして、第２の流体で
ある高温流体と接するＴ字型継手３の温度勾配は軽減さ
れ、かつ安定化され、第１の流体と第２の流体との均一
混合が達成できる。従って、所定の温度に精度良く制御
できるのみでなく、Ｔ字型継手３及び内管７が熱応力の
繰り返しを受けることはなくなりその破損を防止でき
る。Next, the second fluid flows into and mixes with the first fluid flowing through the inner pipe 7 through the through-hole 9 provided on the inner circumferential surface of the inner pipe 7. Thus, the temperature gradient of the T-shaped joint 3 in contact with the high-temperature fluid as the second fluid is reduced and stabilized, and uniform mixing of the first fluid and the second fluid can be achieved. Therefore, the T-shaped joint 3 and the inner pipe 7 are not repeatedly subjected to thermal stress, and can be prevented from being damaged, as well as being able to accurately control the predetermined temperature.
【００２５】ここで、貫通口９にはノズルを設けるよう
にしても良い。その場合、各ノズルは主流配管１内を流
れる第１の流体の流動方向に、所定の角度傾斜して取付
られる。これにより、主流配管１を流れる第１の流体の
流れを乱さずに支流配管２を流れる第２の流体を第１の
流体に効率よく混合することができる。Here, a nozzle may be provided in the through-hole 9. In this case, each nozzle is attached at a predetermined angle in the flow direction of the first fluid flowing in the mainstream pipe 1. Thereby, the second fluid flowing through the branch pipe 2 can be efficiently mixed with the first fluid without disturbing the flow of the first fluid flowing through the mainstream pipe 1.
【００２６】また、内管７の内径を主流配管１の内径に
合わせているが、内管７の内径を主流配管１の内径の大
きさに合わせなくても良い。つまり、主流配管１の内径
より大きくても良いしまたは小さくしても良い。また、
内管７の流路を絞ることにより、内管７内の流れに乱れ
を発生させ流体混合を促進することも可能である。Although the inner diameter of the inner pipe 7 is adjusted to the inner diameter of the main flow pipe 1, the inner diameter of the inner pipe 7 does not have to be adjusted to the inner diameter of the main flow pipe 1. That is, it may be larger or smaller than the inner diameter of the mainstream pipe 1. Also,
By narrowing the flow path of the inner pipe 7, it is also possible to generate turbulence in the flow in the inner pipe 7 to promote fluid mixing.
【００２７】次に、本発明の第２の実施の形態を説明す
る。図３は本発明の第２の実施の形態に係わる流体混合
装置の構成図である。この第２の実施の形態は、図１に
示した第１の実施の形態に対し、内管７をＴ字型継手３
の中心軸から偏心して配設したものである。また、内管
７の内周面の全面に設けられた複数個の貫通口９は、配
置と口径を変化させている。これは、流体室８内の圧力
分布を考慮して、各貫通口９を通過する流量が均一にな
るようにするためである。その他の構成は、図１に示し
た第１の実施の形態と同一であるので、同一要素には同
一符号を付し重複する記載は省略する。Next, a second embodiment of the present invention will be described. FIG. 3 is a configuration diagram of a fluid mixing device according to a second embodiment of the present invention. This second embodiment is different from the first embodiment shown in FIG.
Are disposed eccentrically from the central axis of the. The plurality of through-holes 9 provided on the entire inner peripheral surface of the inner pipe 7 have different arrangements and diameters. This is to make the flow rate passing through each through-hole 9 uniform in consideration of the pressure distribution in the fluid chamber 8. Other configurations are the same as those of the first embodiment shown in FIG. 1, and therefore, the same components are denoted by the same reference symbols and overlapping descriptions will be omitted.
【００２８】高温流体である第２の流体は支流配管２か
ら流体室８に流入し、さらに各貫通口７を通って第１の
流体中に流入する。この場合、内管７がＴ字型継手３に
対して偏心して設置されているので、第２の流体が支流
配管２から流体室８に流れ込む部分の容積が大きくな
る。従って、流体室８内における流体の圧力損失が低く
抑えられるので、流体室８内の圧力分布をさらに均一に
することができる。The second fluid, which is a high-temperature fluid, flows into the fluid chamber 8 from the branch pipe 2 and further flows into the first fluid through each through-hole 7. In this case, since the inner pipe 7 is installed eccentrically with respect to the T-shaped joint 3, the volume of the portion where the second fluid flows from the branch pipe 2 into the fluid chamber 8 increases. Therefore, the pressure loss of the fluid in the fluid chamber 8 can be suppressed low, and the pressure distribution in the fluid chamber 8 can be made more uniform.
【００２９】また、各貫通口は圧力分布を考慮して通過
流量が均一になるように配置と口径とが設定されている
ので、高温流体である第２の流体と低温流体である第１
の流体とを内管７内においてさらに均一に混合すること
ができる。Further, since the through holes are arranged and their diameters are set so as to make the passing flow rate uniform in consideration of the pressure distribution, the second fluid which is a high temperature fluid and the first fluid which is a low temperature fluid.
With the fluid in the inner tube 7 can be mixed more uniformly.
【００３０】次に、本発明の第３の実施の形態について
説明する。図４は、第３の実施の形態に係わる流体混合
装置の構成図である。この第３の実施の形態は、図３に
示した第２の実施の形態に対し、内管７の一方の端はレ
ジュ−シングピ−ス６に固定し、残りの一端はレジュ−
シングピ−スとの間に軸方向に移動可能な間隙を設けて
装備したものである。その他の構成は、図３に示した第
２の実施の形態と同一であるので、同一要素には同一符
号を付し重複する記載は省略する。Next, a third embodiment of the present invention will be described. FIG. 4 is a configuration diagram of a fluid mixing device according to the third embodiment. This third embodiment is different from the second embodiment shown in FIG. 3 in that one end of the inner tube 7 is fixed to the resuming piece 6, and the other end is connected to the resuming piece.
It is provided with a gap that can move in the axial direction between the singing piece and the singing piece. The other configuration is the same as that of the second embodiment shown in FIG. 3, and therefore, the same elements are denoted by the same reference numerals and overlapping description will be omitted.
【００３１】図４において、Ｔ字型継手３の主流配管１
の上流側に設置されるレジュ−シングピ−ス６と内管７
とは、溶接部１１により固定されている。一方、Ｔ字型
継手３の主流配管１の下流側に設置されるレジュ−シン
グピ−ス６は内管７とは固定されずに、軸方向に間隙Δ
Ｘを設けている。図４の溶接部１１の代わりに、ピン等
の固定装置で内管７の周りを止めることも可能である。In FIG. 4, the main flow pipe 1 of the T-shaped joint 3 is shown.
Piece 6 and inner pipe 7 installed upstream of
Is fixed by the welded portion 11. On the other hand, the reducing piece 6 installed on the downstream side of the main flow pipe 1 of the T-shaped joint 3 is not fixed to the inner pipe 7 but has a gap Δ in the axial direction.
X is provided. Instead of the welded portion 11 in FIG. 4, it is also possible to stop around the inner pipe 7 with a fixing device such as a pin.
【００３２】次に、動作を説明する。支流配管２から流
入する高温流体である第２の流体は、主流配管１を流れ
る低温の流体である第１の流体と混合する前に流体室８
内に入り、内管７の全表面で第１の流体と熱交換するの
で、Ｔ字型継手３は流体室８を満たす高温流体で均一に
加熱される。一方、内管７内部には主流配管１から低温
の第１の流体が流入するので内管７の温度はＴ字型継手
３の温度より低温になる。Next, the operation will be described. The second fluid, which is a high-temperature fluid flowing from the branch pipe 2, is mixed with the first fluid, which is a low-temperature fluid flowing through the mainstream pipe 1, before being mixed with the fluid chamber 8.
The T-shaped joint 3 is uniformly heated by the high temperature fluid filling the fluid chamber 8 because it enters inside and exchanges heat with the first fluid on the entire surface of the inner pipe 7. On the other hand, the temperature of the inner pipe 7 is lower than the temperature of the T-shaped joint 3 because the first fluid having a low temperature flows from the mainstream pipe 1 into the inner pipe 7.
【００３３】そして、Ｔ字型継手３と内管７との間に熱
による伸び差が発生しても、Ｔ字型継手３の下流側に設
置されるレジュ−シングピ−ス６と内管７との間に設け
られた間隙ΔＸにより内管７が軸方向に伸縮することを
拘束しないので、Ｔ字型継手３と内管７とに過大な熱応
力が発生することを防止できる。なお、溶接部１１によ
る固定部位を上流側から下流側に置き換えても良いこと
は言うまでもない。Even if a difference in elongation occurs between the T-shaped joint 3 and the inner pipe 7 due to heat, the reducing piece 6 and the inner pipe 7 installed on the downstream side of the T-shaped joint 3 will be described. Is not restricted by the gap ΔX provided between the T-shaped joint 3 and the inner pipe 7, so that excessive thermal stress can be prevented from being generated between the T-shaped joint 3 and the inner pipe 7. Needless to say, the fixing portion by the welded portion 11 may be replaced from the upstream side to the downstream side.
【００３４】次に、本発明の第４の実施の形態について
説明する。第４の実施の形態では、内管７の材質とし
て、Ｔ字型継手３の材質と同等かまたはわずかに小さい
熱膨張係数の高Ｃｒ鋼を使用するようにしたものであ
る。Next, a fourth embodiment of the present invention will be described. In the fourth embodiment, as the material of the inner tube 7, a high Cr steel having a thermal expansion coefficient equal to or slightly smaller than the material of the T-shaped joint 3 is used.
【００３５】Ｔ字型継手３にはフェライト系材料を使用
している。そこで、内管７もＴ字型継手３と同じフェラ
イト系の高Ｃｒ鋼を使用する。フェライト系に代えて、
オ−ステナイト系材料を使用することも可能である。The T-shaped joint 3 uses a ferrite material. Therefore, the inner pipe 7 is also made of the same ferritic high Cr steel as the T-shaped joint 3. Instead of ferrite,
Austenitic materials can also be used.
【００３６】これにより、混合される温度の異なる流体
の温度差が大きくなっても、Ｔ字型継手３と内管７との
熱による伸びの差はわずかとなり、内管７が熱膨張によ
る拘束を受けることを防止できる。また、内管７が高温
流体と低温流体による温度交番を受けても高Ｃｒ鋼を使
用することにより熱衝撃による破損防止することができ
る。Thus, even if the temperature difference between the fluids mixed at different temperatures becomes large, the difference in elongation between the T-shaped joint 3 and the inner pipe 7 due to heat becomes small, and the inner pipe 7 is restrained by thermal expansion. Can be prevented. Further, even if the inner pipe 7 is subjected to a temperature alternation by a high-temperature fluid and a low-temperature fluid, breakage due to a thermal shock can be prevented by using a high Cr steel.
【００３７】[0037]
【発明の効果】以上説明したように、本発明の流体混合
装置によれば、温度差が大きい２つの流体を混合して
も、その流体混合装置に過大な熱応力が発生するのを回
避することができる。また、Ｔ字型継手内の内管の表面
積を大きく取ることができ、したがって流体の流通圧損
を小さく維持できるので流体の流量を自由に調節でき、
混合流体の温度を安定に制度良く調節することが出来
る。As described above, according to the fluid mixing device of the present invention, even if two fluids having a large temperature difference are mixed, it is possible to avoid generating excessive thermal stress in the fluid mixing device. be able to. Also, the surface area of the inner tube in the T-shaped joint can be increased, and the flow pressure loss of the fluid can be kept small, so that the flow rate of the fluid can be freely adjusted,
The temperature of the mixed fluid can be stably and accurately adjusted.
【図１】本発明の第１の実施の形態を示す流体混合装置
の構成図。FIG. 1 is a configuration diagram of a fluid mixing device according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態の流体混合装置の横
断面図。FIG. 2 is a cross-sectional view of the fluid mixing device according to the first embodiment of the present invention.
【図３】本発明の第２の実施の形態を示す流体混合装置
の構成図。FIG. 3 is a configuration diagram of a fluid mixing device according to a second embodiment of the present invention.
【図４】本発明の第３の実施の形態を示す流体混合装置
の構成図。FIG. 4 is a configuration diagram of a fluid mixing device according to a third embodiment of the present invention.
【図５】従来の流体混合継手の一例を示す流体混合装置
の構成図。FIG. 5 is a configuration diagram of a fluid mixing device showing an example of a conventional fluid mixing joint.
【図６】従来の流体混合継手の他の例を示す流体混合装
置の構成図。FIG. 6 is a configuration diagram of a fluid mixing device showing another example of a conventional fluid mixing joint.
１…主流配管、２…支流配管、３…Ｔ字型継手、４…フ
ロースリーブ、５…支流管、６…レジュ−シングピ−
ス、７…内管、８…流体室、９…貫通口、１１…溶接
部、１２…多孔部DESCRIPTION OF SYMBOLS 1 ... Main pipe, 2 ... Branch pipe, 3 ... T-shaped joint, 4 ... Flow sleeve, 5 ... Tributary pipe, 6 ... Resuming piece
, 7 ... inner pipe, 8 ... fluid chamber, 9 ... through hole, 11 ... welded part, 12 ... porous
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 正美 東京都港区芝浦一丁目１番１号 株式会社 東芝本社事務所内 Ｆターム(参考） 4G035 AB02 AC16 AE17 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masami Suzuki 1-1-1, Shibaura, Minato-ku, Tokyo F-term in Toshiba head office (reference) 4G035 AB02 AC16 AE17
Claims (5)
と、この第１の流体と混合される異なる温度の第２の流
体を導く支流配管と、前記主流配管と前記支流配管とを
Ｔ字に接続するＴ字型流体継手とを備えた流体混合装置
において、前記Ｔ字型継手を主流配管に接続するための
レジュ−シングピ−スと、前記レジュ−シングピ−スに
より挟み込む様に前記Ｔ字型継手内部に固定され前記第
２の流体を第１の流体中に吹き出す複数個の噴出口を有
する内管と、前記Ｔ字型継手の内面と前記内管との間に
形成された流体室とを備えたことを特徴とする流体混合
装置。1. A main flow pipe for introducing a first fluid at a certain temperature, a branch pipe for introducing a second fluid at a different temperature mixed with the first fluid, and the main stream pipe and the branch pipe are connected to each other by T In a fluid mixing device provided with a T-shaped fluid coupling connected to a U-shape, a reducing piece for connecting the T-shaped coupling to a mainstream pipe, and the T-shape sandwiched by the reducing piece. An inner pipe fixed inside the T-shaped joint and having a plurality of ejection ports for blowing the second fluid into the first fluid; and a fluid formed between the inner surface of the T-shaped joint and the inner pipe. A fluid mixing device comprising a chamber.
を特徴とする請求項１に記載の流体混合装置。2. The fluid mixing device according to claim 1, wherein a nozzle is provided at a spout of the inner tube.
れるＴ字型継手の中心軸線に対して偏心した位置となる
ように前記内管を配設したことを特徴とする請求項１に
記載の流体混合装置。3. The inner pipe is disposed so that a center axis of the inner pipe is eccentric to a center axis of a T-shaped joint connected to a mainstream pipe. 3. The fluid mixing device according to claim 1.
グピ−スに固定され、残りの一端は前記レジュ−シング
ピ−スとの間に軸方向に移動可能な間隙を設けて装備し
たことを特徴とする請求項１乃至請求項３のいずれか１
項に記載の流体混合装置。4. One end of the inner tube is fixed to the reducing piece, and the other end is provided with an axially movable gap between the reducing piece and the reducing piece. 4. The method according to claim 1, wherein:
Item 7. A fluid mixing device according to item 1.
の材質と同等かまたはわずかに小さい熱膨張係数の高Ｃ
ｒ鋼を使用したことを特徴とする請求項１及至請求項４
のいずれか１項に記載の流体混合装置。5. A high C material having a thermal expansion coefficient equal to or slightly smaller than the material of the T-shaped joint as a material of the inner tube.
5. The steel according to claim 1, wherein r steel is used.
The fluid mixing device according to any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000145900A JP4421076B2 (en) | 2000-05-18 | 2000-05-18 | Fluid mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000145900A JP4421076B2 (en) | 2000-05-18 | 2000-05-18 | Fluid mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001321649A true JP2001321649A (en) | 2001-11-20 |
| JP4421076B2 JP4421076B2 (en) | 2010-02-24 |
Family
ID=18652340
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000145900A Expired - Fee Related JP4421076B2 (en) | 2000-05-18 | 2000-05-18 | Fluid mixing device |
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| Country | Link |
|---|---|
| JP (1) | JP4421076B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007519204A (en) * | 2004-02-17 | 2007-07-12 | フュエルセル エナジー， インコーポレイテッド | Mixer / eductor for high temperature fuel cells |
| JP2008507393A (en) * | 2004-07-20 | 2008-03-13 | ダウ グローバル テクノロジーズ インコーポレイティド | Multi-T mixer with tapered opening |
| JP5640078B2 (en) * | 2010-03-31 | 2014-12-10 | 日本たばこ産業株式会社 | Aerosol particle sampling device |
| US9192901B2 (en) | 2010-05-25 | 2015-11-24 | Ucl Business Plc | Co-current mixer, apparatus, reactor and method for precipitating nanoparticles |
| JP2017520721A (en) * | 2014-04-11 | 2017-07-27 | 武▲漢凱▼迪工程技▲術▼研究▲総▼院有限公司 | Solar energy photothermal and BIGCC integrated combined power generation system |
| CN110270240A (en) * | 2019-06-06 | 2019-09-24 | 常州瑞凯化工装备有限公司 | Dilution steam generation mixer |
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2000
- 2000-05-18 JP JP2000145900A patent/JP4421076B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007519204A (en) * | 2004-02-17 | 2007-07-12 | フュエルセル エナジー， インコーポレイテッド | Mixer / eductor for high temperature fuel cells |
| JP2008507393A (en) * | 2004-07-20 | 2008-03-13 | ダウ グローバル テクノロジーズ インコーポレイティド | Multi-T mixer with tapered opening |
| JP4743442B2 (en) * | 2004-07-20 | 2011-08-10 | ダウ グローバル テクノロジーズ エルエルシー | Multi-T mixer with tapered opening |
| KR101202592B1 (en) | 2004-07-20 | 2012-11-19 | 다우 글로벌 테크놀로지스 엘엘씨 | Tapered aperture multi-tee mixer |
| JP5640078B2 (en) * | 2010-03-31 | 2014-12-10 | 日本たばこ産業株式会社 | Aerosol particle sampling device |
| US9192901B2 (en) | 2010-05-25 | 2015-11-24 | Ucl Business Plc | Co-current mixer, apparatus, reactor and method for precipitating nanoparticles |
| JP2017520721A (en) * | 2014-04-11 | 2017-07-27 | 武▲漢凱▼迪工程技▲術▼研究▲総▼院有限公司 | Solar energy photothermal and BIGCC integrated combined power generation system |
| CN110270240A (en) * | 2019-06-06 | 2019-09-24 | 常州瑞凯化工装备有限公司 | Dilution steam generation mixer |
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| Publication number | Publication date |
|---|---|
| JP4421076B2 (en) | 2010-02-24 |
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