JP2012055872A - Mixer for two fluids with different temperatures - Google Patents

Mixer for two fluids with different temperatures Download PDF

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JP2012055872A
JP2012055872A JP2010204549A JP2010204549A JP2012055872A JP 2012055872 A JP2012055872 A JP 2012055872A JP 2010204549 A JP2010204549 A JP 2010204549A JP 2010204549 A JP2010204549 A JP 2010204549A JP 2012055872 A JP2012055872 A JP 2012055872A
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fluid
temperature
mixed
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Takeshi Okubo
剛 大久保
Ichita Kobayashi
一太 小林
Tadanobu Matsumoto
匡宣 松本
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Mitsubishi Heavy Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a mixer for uniformly mixing a cryogenic fluid and a high-temperature fluid which have different temperatures with each other.SOLUTION: The mixer for the two fluids with different temperatures includes a constitution that a second (high-temperature) fluid outflow part 10 is arranged so that it extends along the axial direction of an outer pipe 2 within a fluid mixing part 7 and a mixed fluid influx part 11 is arranged at the downstream side from the second (high-temperature) fluid outflow part 10 within the fluid mixing part 7 so that it extends along the orthogonal direction to the axial direction of the outer pipe 2, and also the discharge port 10a of the second (high-temperature) fluid which radially discharges the second (high-temperature) fluid introduced into the second (high-temperature) fluid outflow part 10 towards the orthogonal direction to the axial direction of the outer pipe 2 is set in one row along the peripheral direction of the second (high-temperature) fluid outflow part 10 and the mixed fluid influx port 11a which allows for the mixed fluid that is mixed within the fluid mixing part 7 to flow into the mixed fluid influx part 11 towards the inside of the radial direction from the outside of the radial direction is set in one row along the peripheral direction of the mixed fluid influx part 11.

Description

本発明は、温度の異なる低温流体と高温流体とを均一に混合する二温流体混合器に関するものである。   The present invention relates to a two-temperature fluid mixer that uniformly mixes a low-temperature fluid and a high-temperature fluid having different temperatures.

温度の異なる低温流体と高温流体とを均一に混合しようとする二温流体混合器としては、例えば、特許文献１に開示されているものが知られている。   As a two-temperature fluid mixer that attempts to uniformly mix a low-temperature fluid and a high-temperature fluid having different temperatures, for example, the one disclosed in Patent Document 1 is known.

特開平１０−３３９３９６号公報JP 10-339396 A

特許文献１に開示されているものでは、主管１の内部を流れる低温流体に対して、主管１の軸方向と直交する方向の一方向からのみ高温流体が供給されるようになっている。そこで、特許文献１に開示されているものでは、流体混合器２により旋回流を発生させて低温流体と高温流体とを均一に混合させようとしている。しかしながら、特許文献１に開示されているものでは、特許文献１の図８（ｂ）に示されているように、最も高い温度領域（１３６．７℃の領域）が、図８（ｂ）において右上側に偏り、最も低い温度領域（８３．７℃の領域）が、図８（ｂ）において左下側に偏るとともに、最も高い温度領域と最も低い温度領域との温度差が５０℃以上もついてしまい、低温流体と高温流体とが今ひとつ均一に混合されていないことがわかる。   In what is disclosed in Patent Document 1, the high-temperature fluid is supplied to the low-temperature fluid flowing inside the main pipe 1 only from one direction perpendicular to the axial direction of the main pipe 1. Therefore, in the one disclosed in Patent Document 1, a swirl flow is generated by the fluid mixer 2 to uniformly mix the low temperature fluid and the high temperature fluid. However, in what is disclosed in Patent Document 1, as shown in FIG. 8B of Patent Document 1, the highest temperature region (136.7 ° C. region) is shown in FIG. The lowest temperature region (region of 83.7 ° C.) is biased to the lower right side in FIG. 8B, and the temperature difference between the highest temperature region and the lowest temperature region is 50 ° C. or more. Thus, it can be seen that the low temperature fluid and the high temperature fluid are not evenly mixed.

また、低温流体と高温流体との温度差が数１００℃（例えば、５００℃）以上もあるような流体を流そうとした場合には、交差供給管４と主管１との熱伸び差により交差供給管４と主管１との接合部に亀裂が発生したり、上流供給管３と主管１との熱伸び差により上流供給管３と主管１との接合部に亀裂が発生して、高温流体や低温流体、あるいは混合流体が外に漏れだしてしまうおそれがある。   In addition, when a fluid having a temperature difference between the low temperature fluid and the high temperature fluid of several hundred degrees Celsius (for example, 500 degrees Celsius) or more is caused to flow, the intersection is caused by the difference in thermal expansion between the intersecting supply pipe 4 and the main pipe 1. Cracks occur in the joint between the supply pipe 4 and the main pipe 1, or cracks occur in the joint between the upstream supply pipe 3 and the main pipe 1 due to the difference in thermal expansion between the upstream supply pipe 3 and the main pipe 1. Or low temperature fluid or mixed fluid may leak out.

本発明は、このような事情に鑑みてなされたものであって、温度の異なる低温流体と高温流体とを均一に混合することのできる二温流体混合器を提供することを目的とする。   This invention is made | formed in view of such a situation, Comprising: It aims at providing the two temperature fluid mixer which can mix the low temperature fluid and high temperature fluid from which temperature differs uniformly.

本発明は、上記課題を解決するため、以下の手段を採用した。
本発明に係る二温流体混合器は、第１の流体が流入する第１の流体流入部、内管接続部、および流体混合部が、上流側から軸方向に沿って順に配置された外管と、第２の流体が流入する第２の流体流入部、転向部、第２の流体流出部が、上流側から軸方向に沿って順に配置された内管と、混合流体流入部および混合流体流出部が、上流側から軸方向に沿って順に配置された混合流体排出管と、を備え、前記第２の流体流出部が、前記流体混合部内に、前記外管の軸方向に沿って延びるようにして配置され、前記混合流体流入部が、前記流体混合部内の前記第２の流体流出部よりも下流側に、前記外管の軸方向と直交する方向に沿って延びるようにして配置されているとともに、前記第２の流体流出部に導かれた第２の流体を、前記外管の軸方向と直交する方向に向かって放射状に放出させる第２の流体放出口が、前記第２の流体流出部の周方向に沿って一列設けられており、前記流体混合部内で混合された混合流体を、半径方向外側から半径方向内側に向かって前記混合流体流入部に流入させる混合流体流入口が、前記混合流体流入部の周方向に沿って一列設けられている。 The present invention employs the following means in order to solve the above problems.
The two-temperature fluid mixer according to the present invention includes an outer tube in which a first fluid inflow portion into which a first fluid flows, an inner tube connection portion, and a fluid mixing portion are sequentially arranged from the upstream side along the axial direction. A second fluid inflow portion into which the second fluid flows, a turning portion, and a second fluid outflow portion are arranged in order along the axial direction from the upstream side, and the mixed fluid inflow portion and the mixed fluid And a second fluid outflow portion extending in the fluid mixing portion along the axial direction of the outer tube. Arranged so that the mixed fluid inflow portion extends downstream of the second fluid outflow portion in the fluid mixing portion along a direction perpendicular to the axial direction of the outer tube. And the second fluid guided to the second fluid outflow portion is disposed in the axial direction of the outer tube. A second fluid discharge port that discharges radially in a direction orthogonal to the first fluid outlet is provided in a row along the circumferential direction of the second fluid outflow portion, and the mixed fluid mixed in the fluid mixing portion is A mixed fluid inflow port for flowing into the mixed fluid inflow portion from the radially outer side toward the radially inner side is provided in a row along the circumferential direction of the mixed fluid inflow portion.

本発明に係る二温流体混合器によれば、外管の軸方向に沿って流れる第１の流体が、流体混合部内において、外管の軸方向と直交する方向に高温流体放出口から放射状に放出される第２の流体により撹拌され、第１の流体と第２の流体との均一な混合が図られるとともに、第１の流体と第２の流体との混合流体が、混合流体流入口に流入する際に、第１の流体と第２の流体とのさらなる均一な混合が図られることになる。
これにより、温度の異なる第１の流体と第２の流体とを均一に混合することができる。
また、本発明に係る二温流体混合器によれば、外管と混合流体排出管とが、直交するようにして配置されることになる。
これにより、当該二温流体混合器の軸方向の寸法を小さくすることができ、当該二温流体混合器の小型化を図ることができる。 According to the two-temperature fluid mixer according to the present invention, the first fluid flowing along the axial direction of the outer tube is radially radiated from the high-temperature fluid discharge port in a direction perpendicular to the axial direction of the outer tube in the fluid mixing unit. The first fluid and the second fluid are agitated by the released second fluid, and the first fluid and the second fluid are uniformly mixed, and the mixed fluid of the first fluid and the second fluid is supplied to the mixed fluid inlet. As it flows in, further uniform mixing of the first fluid and the second fluid will be achieved.
Thereby, the 1st fluid and 2nd fluid from which temperature differs can be mixed uniformly.
Further, according to the two-temperature fluid mixer according to the present invention, the outer pipe and the mixed fluid discharge pipe are arranged so as to be orthogonal to each other.
Thereby, the dimension of the axial direction of the said 2 warm fluid mixer can be made small, and size reduction of the said 2 warm fluid mixer can be achieved.

上記二温流体混合器において、第２の流体放出口が、前記第２の流体流出部の軸方向に沿って複数列設けられており、前記混合流体流入口が、前記混合流体流入部の軸方向に沿って複数列設けられているとさらに好適である。   In the two-temperature fluid mixer, the second fluid discharge ports are provided in a plurality of rows along the axial direction of the second fluid outflow portion, and the mixed fluid inflow port is an axis of the mixed fluid inflow portion. More preferably, a plurality of rows are provided along the direction.

このような二温流体混合器によれば、外管の軸方向に沿って流れる第１の流体が、流体混合部内において、外管の軸方向と直交する方向に放射状に放出される第２の流体により複数段階で撹拌され、第１の流体と第２の流体とのより均一な混合が図られるとともに、第１の流体と第２の流体との混合流体が、混合流体流入口に流入する際に、第１の流体と第２の流体とのさらなる均一な混合が図られることになる。
これにより、温度の異なる第１の流体と第２の流体とをより一層均一に混合することができる。 According to such a two-temperature fluid mixer, the first fluid flowing along the axial direction of the outer tube is discharged radially in the direction perpendicular to the axial direction of the outer tube in the fluid mixing section. The fluid is agitated in multiple stages to achieve more uniform mixing of the first fluid and the second fluid, and the mixed fluid of the first fluid and the second fluid flows into the mixed fluid inlet. In this case, further uniform mixing of the first fluid and the second fluid is achieved.
Thereby, the 1st fluid and 2nd fluid from which temperature differs can be mixed much more uniformly.

上記二温流体混合器において、前記第１の流体流入部と前記内管接続部とが伸縮継手を介して結合されており、前記内管接続部と前記流体混合部とが伸縮継手を介して結合されているとさらに好適である。   In the two-temperature fluid mixer, the first fluid inflow part and the inner pipe connection part are coupled via an expansion joint, and the inner pipe connection part and the fluid mixing part are connected via an expansion joint. More preferably it is bonded.

このような二温流体混合器によれば、第１の流体と第２の流体との温度差が数１００℃（例えば、５００℃）以上もあるような流体を流そうとした場合でも、外管と内管との熱伸び差が伸縮継手により吸収されることになる。
これにより、外管と内管との接合部に亀裂が発生するのを防止することができ、第１の流体や第２の流体、あるいは混合流体が当該二温流体混合器の外に漏れだしてしまうことを防止することができる。 According to such a two-temperature fluid mixer, even when a fluid having a temperature difference between the first fluid and the second fluid of several hundred degrees Celsius (for example, 500 degrees Celsius) or more is caused to flow, The thermal expansion difference between the pipe and the inner pipe is absorbed by the expansion joint.
As a result, cracks can be prevented from occurring at the joint between the outer tube and the inner tube, and the first fluid, the second fluid, or the mixed fluid leaks out of the two-temperature fluid mixer. Can be prevented.

上記二温流体混合器において、一端が前記内管接続部の内周面に結合され、他端が前記内管の外周面に接するようにして前記内管を支持する板バネが、周方向に沿うとともに等間隔離間するようにして少なくとも二枚設けられているとさらに好適である。   In the two-temperature fluid mixer, a leaf spring that supports the inner pipe in the circumferential direction is connected to the inner peripheral surface of the inner pipe connecting portion and the other end is in contact with the outer peripheral surface of the inner pipe. It is more preferable that at least two are provided so as to be along the same distance.

このような二温流体混合器によれば、自由端とされた内管の先端部が板バネにより支持されることになる。
これにより、自由端とされた内管の先端部の振動を低減させることができ、振動による内管の損傷を防止することができる。 According to such a two-temperature fluid mixer, the distal end portion of the inner tube that is a free end is supported by the leaf spring.
Thereby, the vibration of the front-end | tip part of the inner tube made into the free end can be reduced, and the damage of the inner tube by vibration can be prevented.

上記二温流体混合器において、前記第１の流体として、温度数１０℃の低温流体が流され、前記第２の流体として、温度数１００℃の高温流体が流されるとさらに好適である。   In the two-temperature fluid mixer, it is more preferable that a low temperature fluid having a temperature of several tens of degrees Celsius is flown as the first fluid, and a high temperature fluid having a temperature of several hundred degrees Celsius is flowed as the second fluid.

このような二温流体混合器によれば、流体混合部内において、高温流体である第２の流体が、低温流体である第１の流体に包み込まれるようにして移動していくことになる。
これにより、内管よりもボリュームのある外管の温度上昇を抑制することができ、外管の材料として耐熱性の低い材料を採用することができて、製造コストを低減させることができる。 According to such a two-temperature fluid mixer, the second fluid, which is a high-temperature fluid, moves within the fluid mixing section so as to be encased in the first fluid, which is a low-temperature fluid.
Thereby, the temperature rise of the outer tube having a larger volume than that of the inner tube can be suppressed, and a material having low heat resistance can be adopted as the material of the outer tube, and the manufacturing cost can be reduced.

本発明に係る二温流体混合器によれば、温度の異なる低温流体と高温流体とを均一に混合することのできるという効果を奏する。   According to the two-temperature fluid mixer according to the present invention, there is an effect that a low-temperature fluid and a high-temperature fluid having different temperatures can be uniformly mixed.

本発明の第１実施形態に係る二温流体混合器を、流体の流れ方向に沿って切った断面図である。It is sectional drawing which cut the 2 temperature fluid mixer which concerns on 1st Embodiment of this invention along the flow direction of the fluid. 本発明の第２実施形態に係る二温流体混合器を、流体の流れ方向に沿って切った断面図である。It is sectional drawing which cut the 2 temperature fluid mixer which concerns on 2nd Embodiment of this invention along the flow direction of the fluid.

〔第１実施形態〕
本発明の第１実施形態に係る二温流体混合器について、図１を参照しながら説明する。
図１は本実施形態に係る二温流体混合器を、流体の流れ方向に沿って切った断面図である。 [First Embodiment]
A two-temperature fluid mixer according to a first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a cross-sectional view of the two-temperature fluid mixer according to the present embodiment cut along the fluid flow direction.

図１に示すように、二温流体混合器（「混合流配管構造」または「混合流体用管路」といってもよい。）１は、外管（第１の流入管）２と、内管（第２の流入管）３と、混合流体排出管（流出管）４とを備えている。
外管２は、低温（第１の）流体流入部５と、内管接続部６と、流体混合部７とを備え、内管３は、高温（第２の）流体流入部８と、転向部（曲がり部：湾曲部）９と、高温（第２の）流体流出（放出）部１０とを備えており、混合流体排出管４は、混合流体流入部１１と、混合流体流出部１２とを備えている。 As shown in FIG. 1, a two-temperature fluid mixer (also referred to as “mixed flow piping structure” or “mixed fluid pipe line”) 1 includes an outer pipe (first inflow pipe) 2 and an inner pipe. A pipe (second inflow pipe) 3 and a mixed fluid discharge pipe (outflow pipe) 4 are provided.
The outer tube 2 includes a low temperature (first) fluid inflow portion 5, an inner tube connection portion 6, and a fluid mixing portion 7, and the inner tube 3 includes a high temperature (second) fluid inflow portion 8 and a turning direction. Portion (bending portion: curved portion) 9 and a high temperature (second) fluid outflow (discharge) portion 10, and the mixed fluid discharge pipe 4 includes a mixed fluid inflow portion 11, a mixed fluid outflow portion 12, It has.

低温流体流入部５は、その内部を低温流体（例えば、温度数１０℃、流速数ｍ／sec、圧力数百ＫＰａの空気）が流れてくる配管（図示せず）の下流端に、その上流端が接続される直管またはエルボ管であり、配管の下流端と低温流体流入部５の上流端とは、図示しないフランジおよびボルト・ナットを介して結合されている。   The cryogenic fluid inflow portion 5 has an inside at a downstream end of a pipe (not shown) through which a cryogenic fluid (for example, air having a temperature of several tens of degrees Celsius, a flow velocity of several m / sec, and a pressure of several hundred KPa) flows. It is a straight pipe or an elbow pipe to which the end is connected, and the downstream end of the pipe and the upstream end of the cryogenic fluid inflow portion 5 are coupled via a flange and bolts and nuts (not shown).

内管接続部６は、低温流体流入部５の下流端に、その上流端が伸縮継手１３を介して接続されるとともに、流体混合部７の上流端に、その下流端が伸縮継手１４を介して接続される本管６ａと、本管６ａの、軸方向（図１において上下方向）において中央部に位置する外周面から外方に向かって突出する枝管６ｂとを備えたＴ字管である。また、枝管６ｂの先端（開口端）と、転向部９の上流側近傍に位置する高温流体流入部８（すなわち、内管３）の外周面とは、枝管６ｂの先端と高温流体流入部８（すなわち、内管３）の外周面との間に形成された開口を閉塞する閉塞板（閉塞部材）６ｃを介して結合されている。
伸縮継手１３，１４は、例えば、断面視蛇腹状を呈する継手であり、軸方向（図１において上下方向）、およびこの軸方向と直交する方向（例えば、図１において左右方向）へ伸縮可能に構成されている。また、伸縮継手１３，１４を作製する材料としては、高強度で薄板構造であり、バネ定数を低く（小さく）することができる材料（例えば、インコネル（登録商標））が好ましい。 The inner pipe connecting portion 6 is connected to the downstream end of the low-temperature fluid inflow portion 5 via the expansion joint 13 and the upstream end thereof is connected to the upstream end of the fluid mixing portion 7 via the expansion joint 14. And a branch pipe 6b projecting outward from an outer peripheral surface located in the central portion in the axial direction (vertical direction in FIG. 1) of the main pipe 6a. is there. The tip (open end) of the branch pipe 6b and the outer peripheral surface of the high-temperature fluid inflow portion 8 (that is, the inner pipe 3) located in the vicinity of the upstream side of the turning portion 9 are connected to the tip of the branch pipe 6b and the high-temperature fluid inflow. It is connected via a closing plate (closing member) 6c that closes an opening formed between the outer peripheral surface of the portion 8 (that is, the inner tube 3).
The expansion joints 13 and 14 are, for example, joints having a bellows shape in cross section, and can be expanded and contracted in the axial direction (vertical direction in FIG. 1) and in a direction perpendicular to the axial direction (for example, horizontal direction in FIG. 1). It is configured. Moreover, as a material for producing the expansion joints 13 and 14, a material (for example, Inconel (registered trademark)) that has a high-strength and thin plate structure and can have a low (small) spring constant is preferable.

流体混合部７は、低温流体流入部５および本管６ａの内径よりも大きい内径を有するとともに、その内部に低温流体と高温流体（例えば、温度数１００℃、流速１０ｍ／sec、圧力数百ＫＰａの空気）とを混合する混合空間Ｓを有する直管である。流体混合部７の一端（上流端：開口端）には、その中央部に平面視円形状を呈するとともに板厚方向に貫通する開口（貫通穴）７ａを有する端板（側板）７ｂが結合されており、流体混合部７の他端（下流端）には、流体混合部７の他端に形成された開口を閉塞する閉塞板（閉塞部材）７ｃが結合されている。
一方、流体混合部７の他端部外周面には、平面視円形状を呈するとともに板厚方向に貫通して、混合流体流入部１１（すなわち、混合流体排出管４）を支持する貫通穴７ｄが二つ、周方向において反対側に位置するようにして（１８０度離間するようにして）設けられている。 The fluid mixing section 7 has an inner diameter larger than the inner diameter of the cold fluid inflow section 5 and the main pipe 6a, and a low temperature fluid and a high temperature fluid (for example, a temperature of 100 ° C., a flow rate of 10 m / sec, a pressure of several hundred KPa). It is a straight pipe having a mixing space S for mixing the air. One end (upstream end: opening end) of the fluid mixing unit 7 is coupled to an end plate (side plate) 7b having a circular shape in plan view at the center and having an opening (through hole) 7a penetrating in the plate thickness direction. A closing plate (closing member) 7c for closing an opening formed at the other end of the fluid mixing unit 7 is coupled to the other end (downstream end) of the fluid mixing unit 7.
On the other hand, on the outer peripheral surface of the other end of the fluid mixing portion 7, a through hole 7d that has a circular shape in plan view and penetrates in the thickness direction to support the mixed fluid inflow portion 11 (that is, the mixed fluid discharge pipe 4). Are provided so as to be located on the opposite side in the circumferential direction (so as to be separated by 180 degrees).

なお、端板７ｂの内周面（すなわち、開口７ａを形成する面）と、この内周面の半径方向内側に位置する転向部９または高温流体流出部１０（すなわち、内管３）の外周面との間には、平面視環形状を呈する隙間Ｇが形成され、この隙間Ｇを通って低温流体が混合空間Ｓ内に流入するようになっている。
また、製造（組立）工程において、二つの貫通穴７ｄに混合流体流入部１１（すなわち、混合流体排出管４）が挿通された後、貫通穴７ｄと、混合流体流入部１１（すなわち、混合流体排出管４）の外周面との間に形成される隙間は、溶接ビード等により閉塞されるため、当該隙間から混合流体が漏れ出すことはない。 Note that the inner peripheral surface of the end plate 7b (that is, the surface that forms the opening 7a) and the outer periphery of the turning portion 9 or the high-temperature fluid outflow portion 10 (that is, the inner tube 3) that is located radially inside the inner peripheral surface. A gap G having a ring shape in plan view is formed between the surfaces, and the low-temperature fluid flows into the mixing space S through the gap G.
Further, in the manufacturing (assembly) process, after the mixed fluid inflow portion 11 (that is, the mixed fluid discharge pipe 4) is inserted into the two through holes 7d, the through hole 7d and the mixed fluid inflow portion 11 (that is, the mixed fluid) Since the gap formed between the outer peripheral surface of the discharge pipe 4) is closed by a weld bead or the like, the mixed fluid does not leak from the gap.

高温流体流入部８は、その内部を高温流体が流れてくる配管（図示せず）の下流端に、その上流端が接続される直管またはエルボ管であり、配管の下流端と高温流体流入部８の上流端とは、図示しないフランジおよびボルト・ナットを介して結合されている。
転向部９は、上流側の端部に設けられた高温流体流入部８と、下流側の端部に設けられた高温流体流出部１０とを連結するエルボ管であり、本実施形態では、内管接続部６内において、高温流体の流れ方向を９０度変えて、高温流体の流れ方向が、低温流体の流れ方向と一致するように曲げられている。 The high-temperature fluid inflow portion 8 is a straight pipe or an elbow pipe whose upstream end is connected to the downstream end of a pipe (not shown) through which the high-temperature fluid flows. The upstream end of the portion 8 is coupled via a flange and bolts and nuts (not shown).
The turning portion 9 is an elbow pipe that connects the high-temperature fluid inflow portion 8 provided at the upstream end portion and the high-temperature fluid outflow portion 10 provided at the downstream end portion. In the pipe connection portion 6, the flow direction of the high temperature fluid is changed by 90 degrees, and the flow direction of the high temperature fluid is bent so as to coincide with the flow direction of the low temperature fluid.

高温流体流出部１０は、周方向および軸方向に沿って、平面視円形状を呈するとともに板厚方向に貫通して、高温流体を半径方向外側に向かって放射状に放出（噴出）させる高温（第２の）流体放出（噴出）口１０ａが千鳥状に多数設けられており、高温流体流出部１０の先端（下流端）には、高温流体流出部１０の先端に形成された開口を閉塞する閉塞板（閉塞部材）１０ｂが結合されている。   The high-temperature fluid outflow portion 10 has a circular shape in plan view along the circumferential direction and the axial direction and penetrates in the plate thickness direction to discharge (spout) the high-temperature fluid radially outward (injection). 2) A large number of fluid discharge (spout) ports 10a are provided in a zigzag shape, and the front end (downstream end) of the high temperature fluid outflow portion 10 is closed to close the opening formed at the front end of the high temperature fluid outflow portion 10. A plate (blocking member) 10b is coupled.

混合流体流入部１１は、周方向および軸方向に沿って、平面視円形状を呈するとともに板厚方向に貫通して、混合流体を半径方向外側から半径方向内側に向かって流入させる（取り入れる）混合流体流入（取入）口１１ａが千鳥状に多数設けられており、混合流体流入部１１の先端（上流端）には、混合流体流入部１１の先端に形成された開口を閉塞する閉塞板（閉塞部材）１１ｂが結合されている。
混合流体流出部１２は、その内部を混合流体が流れていく配管（図示せず）の上流端に、その下流端が接続される直管またはエルボ管であり、配管の上流端と混合流体流出部１２の上流端とは、図示しないフランジおよびボルト・ナットを介して結合されている。 The mixed fluid inflow portion 11 has a circular shape in plan view along the circumferential direction and the axial direction and penetrates in the plate thickness direction so that the mixed fluid flows in (takes in) from the radially outer side to the radially inner side. A large number of fluid inflow (intake) ports 11a are provided in a staggered manner, and a closed plate (blocking plate) that closes an opening formed at the front end of the mixed fluid inflow portion 11 is provided at the front end (upstream end) of the mixed fluid inflow portion 11. The closing member 11b is coupled.
The mixed fluid outflow portion 12 is a straight pipe or an elbow pipe whose downstream end is connected to an upstream end of a pipe (not shown) through which the mixed fluid flows. The upstream end of the portion 12 is coupled via a flange and bolts and nuts (not shown).

なお、高温流体放出口１０ａの穴径（口径）は、高温流体放出口１０ａを通過する際の流体の圧力損失が数ＫＰａとなり、内管３の高温流体流出部１０における励振周波数が内管３の固有振動数よりも大きくなるように設定されており、混合流体流入口１１ａの穴径（口径）は、混合流体流入口１１ａを通過する際の流体の圧力損失が数ＫＰａとなるように設定されている。   Note that the hole diameter (diameter) of the high temperature fluid discharge port 10a is such that the pressure loss of the fluid when passing through the high temperature fluid discharge port 10a is several KPa, and the excitation frequency in the high temperature fluid outflow portion 10 of the inner tube 3 is the inner tube 3. Is set so as to be larger than the natural frequency of the fluid, and the hole diameter (port diameter) of the mixed fluid inlet 11a is set so that the pressure loss of the fluid when passing through the mixed fluid inlet 11a is several KPa. Has been.

また、図１中の符号１５は、二温流体混合器１を図示しない設置面または設置面に設置された基台（土台）に固定するための固定点を示している。すなわち、本実施形態においては、流体混合部７の一端部（上流側の端部）のみが設置面または設置面に設置された基台（土台）に固定されていることになる。そして、低温流体流入部５、内管接続部６、および内管３は、設置面または設置面に設置された基台（土台）に拘束されることなく、流体混合部７に対する、軸方向（図１において上下方向）、およびこの軸方向と直交する方向（例えば、図１において左右方向）へ移動が許容されるようになっている。   Moreover, the code | symbol 15 in FIG. 1 has shown the fixing point for fixing the two-temperature fluid mixer 1 to the base (base) installed in the installation surface which is not shown in figure, or an installation surface. That is, in the present embodiment, only one end (upstream end) of the fluid mixing unit 7 is fixed to the installation surface or a base (base) installed on the installation surface. And the low-temperature fluid inflow part 5, the inner pipe connection part 6, and the inner pipe 3 are not restrained by the base (base) installed on the installation surface or the installation surface, but are axially directed to the fluid mixing unit 7 ( Movement in the vertical direction in FIG. 1 and in a direction orthogonal to the axial direction (for example, the horizontal direction in FIG. 1) is allowed.

本実施形態に係る二温流体混合器１によれば、外管２の軸方向に沿って流れる低温流体が、流体混合部７内において、外管２の軸方向と直交する方向に高温流体放出口１０ａから放射状に放出される高温流体により撹拌され、低温流体と高温流体との均一な混合が図られるとともに、低温流体と高温流体との混合流体が、混合流体流入口１１ａに流入する際に、低温流体と高温流体とのさらなる均一な混合が図られることになる。
これにより、温度の異なる低温流体と高温流体とを均一に混合することができる。 According to the two-temperature fluid mixer 1 according to the present embodiment, the low-temperature fluid flowing along the axial direction of the outer tube 2 is discharged in the direction perpendicular to the axial direction of the outer tube 2 in the fluid mixing unit 7. The mixture is stirred by the high-temperature fluid discharged radially from the outlet 10a, and the low-temperature fluid and the high-temperature fluid are uniformly mixed, and the mixed fluid of the low-temperature fluid and the high-temperature fluid flows into the mixed fluid inlet 11a. Thus, further uniform mixing of the low temperature fluid and the high temperature fluid will be achieved.
Thereby, the low temperature fluid and high temperature fluid from which temperature differs can be mixed uniformly.

また、本実施形態に係る二温流体混合器１よれば、２外管と混合流体排出管４とが、直交するようにして配置されることになる。
これにより、二温流体混合器１の軸方向の寸法を小さくすることができ、二温流体混合器１の小型化を図ることができる。 Further, according to the two-temperature fluid mixer 1 according to this embodiment, the two outer pipes and the mixed fluid discharge pipe 4 are arranged so as to be orthogonal to each other.
Thereby, the dimension of the axial direction of the 2 temperature fluid mixer 1 can be made small, and size reduction of the 2 temperature fluid mixer 1 can be achieved.

さらに、本実施形態に係る二温流体混合器１によれば、低温流体と高温流体との温度差が数１００℃（例えば、５００℃）以上もあるような流体を流そうとした場合でも、外管２と内管３との熱伸び差が伸縮継手１３，１４により吸収されることになる。
これにより、外管２と内管３との接合部に亀裂が発生するのを防止することができ、低温流体や高温流体、あるいは混合流体が二温流体混合器１の外に漏れだしてしまうことを防止することができる。 Furthermore, according to the two-temperature fluid mixer 1 according to the present embodiment, even when trying to flow a fluid having a temperature difference between the low temperature fluid and the high temperature fluid of several hundred degrees Celsius (for example, 500 degrees Celsius) or more, The thermal expansion difference between the outer tube 2 and the inner tube 3 is absorbed by the expansion joints 13 and 14.
Thereby, it can prevent that a crack generate | occur | produces in the junction part of the outer tube | pipe 2 and the inner tube | pipe 3, and a low temperature fluid, a high temperature fluid, or mixed fluid will leak out of the two temperature fluid mixer 1. FIG. This can be prevented.

さらにまた、本実施形態に係る二温流体混合器１によれば、流体混合部７内において、高温流体が低温流体に包み込まれるようにして移動していくことになる。
これにより、内管３よりもボリュームのある外管２の温度上昇を抑制することができ、外管２の材料として耐熱性の低い材料を採用することができて、製造コストを低減させることができる。 Furthermore, according to the two-temperature fluid mixer 1 according to the present embodiment, the high-temperature fluid moves in the fluid mixing unit 7 so as to be encased in the low-temperature fluid.
Thereby, the temperature rise of the outer tube 2 having a larger volume than the inner tube 3 can be suppressed, and a material having low heat resistance can be adopted as the material of the outer tube 2, thereby reducing the manufacturing cost. it can.

〔第２実施形態〕
本発明の第２実施形態に係る二温流体混合器について、図２を参照しながら説明する。
図２は本実施形態に係る二温流体混合器を、流体の流れ方向に沿って切った断面図である。 [Second Embodiment]
A two-temperature fluid mixer according to a second embodiment of the present invention will be described with reference to FIG.
FIG. 2 is a cross-sectional view of the two-temperature fluid mixer according to the present embodiment cut along the fluid flow direction.

図２に示すように、本実施形態に係る二温流体混合器２１は、板バネ２２を備えているという点で上述した第１実施形態のものと異なる。その他の構成要素については上述した第１実施形態のものと同じであるので、ここではそれら構成要素についての説明は省略する。
なお、上述した第１実施形態と同一の部材には同一の符号を付している。 As shown in FIG. 2, the two-temperature fluid mixer 21 according to this embodiment is different from that of the first embodiment described above in that a leaf spring 22 is provided. Since other components are the same as those of the first embodiment described above, description of these components is omitted here.
In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment mentioned above.

板バネ２２は、一端（上流端）が本管６ａ（すなわち、内管接続部６）の内周面に結合され、他端（下流端）が転向部９の下流側の端部または高温流体流出部１０（すなわち、内管３）の外周面に接するようにして転向部９の下流側の端部または高温流体流出部１０（すなわち、内管３）を支持する、平面視矩形状を呈する薄板状の部材であり、周方向に沿って少なくとも二枚（本実施形態では周方向において反対側に位置するようにして（１８０度離間するようにして）二枚）設けられている。   One end (upstream end) of the leaf spring 22 is coupled to the inner peripheral surface of the main pipe 6a (that is, the inner pipe connection portion 6), and the other end (downstream end) is an end portion on the downstream side of the turning portion 9 or a high-temperature fluid. It has a rectangular shape in plan view that supports the downstream end of the turning portion 9 or the high-temperature fluid outflow portion 10 (that is, the inner tube 3) so as to contact the outer peripheral surface of the outflow portion 10 (that is, the inner tube 3). It is a thin plate-like member, and at least two sheets are provided along the circumferential direction (in the present embodiment, two sheets are positioned so as to be opposite to each other in the circumferential direction (with a separation of 180 degrees)).

本実施形態に係る二温流体混合器２１によれば、自由端とされた内管３の高温流体流出部１０が板バネ２２により支持されることになる。
これにより、自由端とされた内管３の高温流体流出部１０の振動を低減させることができ、振動による内管３の損傷を防止することができる。
その他の作用効果は、上述した第１実施形態のものと同じであるので、ここではその説明を省略する。 According to the two-temperature fluid mixer 21 according to the present embodiment, the high-temperature fluid outflow portion 10 of the inner pipe 3 that is a free end is supported by the leaf spring 22.
Thereby, the vibration of the high-temperature fluid outflow portion 10 of the inner pipe 3 that is a free end can be reduced, and damage to the inner pipe 3 due to vibration can be prevented.
Other functions and effects are the same as those of the above-described first embodiment, and thus description thereof is omitted here.

なお、本発明は上述した実施形態に限定されるものではなく、適宜必要に応じて変形・変更実施可能である。
例えば、上述した実施形態においては、外管２の上流端から低温流体を流入させ、内管３の上流端から高温流体を流入させるものを一具体例として挙げて説明したが、本発明はこのようなものに限定されるものではなく、外管２の上流端から高温流体を流入させ、内管３の上流端から低温流体を流入させるようにしてもよい。 Note that the present invention is not limited to the above-described embodiment, and can be modified and changed as necessary.
For example, in the above-described embodiment, the low temperature fluid is introduced from the upstream end of the outer tube 2 and the high temperature fluid is introduced from the upstream end of the inner tube 3 as one specific example. The high temperature fluid may be introduced from the upstream end of the outer tube 2 and the low temperature fluid may be introduced from the upstream end of the inner tube 3.

１ 二温流体混合器
２ 外管
３ 内管
４ 混合流体排出管
５ 低温（第１の）流体流入部
６ 内管接続部
７ 流体混合部
８ 高温（第２の）流体流入部
９ 転向部
１０ 高温（第２の）流体流出部
１０ａ 高温（第２の）流体放出口
１１ 混合流体流入部
１１ａ 混合流体流入口
１２ 混合流体流出部
１３ 伸縮継手
１４ 伸縮継手
２１ 二温流体混合器
２２ 板バネ DESCRIPTION OF SYMBOLS 1 Two temperature fluid mixer 2 Outer pipe 3 Inner pipe 4 Mixed fluid discharge pipe 5 Low temperature (first) fluid inflow part 6 Inner pipe connection part 7 Fluid mixing part 8 High temperature (second) fluid inflow part 9 Turning part 10 High temperature (second) fluid outlet 10a High temperature (second) fluid outlet 11 Mixed fluid inlet 11a Mixed fluid inlet 12 Mixed fluid outlet 13 Expansion joint 14 Expansion joint 21 Two temperature fluid mixer 22 Leaf spring

Claims (5)

第１の流体が流入する第１の流体流入部、内管接続部、および流体混合部が、上流側から軸方向に沿って順に配置された外管と、
第２の流体が流入する第２の流体流入部、転向部、第２の流体流出部が、上流側から軸方向に沿って順に配置された内管と、
混合流体流入部および混合流体流出部が、上流側から軸方向に沿って順に配置された混合流体排出管と、を備え、
前記第２の流体流出部が、前記流体混合部内に、前記外管の軸方向に沿って延びるようにして配置され、
前記混合流体流入部が、前記流体混合部内の前記第２の流体流出部よりも下流側に、前記外管の軸方向と直交する方向に沿って延びるようにして配置されているとともに、
前記第２の流体流出部に導かれた第２の流体を、前記外管の軸方向と直交する方向に向かって放射状に放出させる第２の流体放出口が、前記第２の流体流出部の周方向に沿って一列設けられており、
前記流体混合部内で混合された混合流体を、半径方向外側から半径方向内側に向かって前記混合流体流入部に流入させる混合流体流入口が、前記混合流体流入部の周方向に沿って一列設けられていることを特徴とする二温流体混合器。 An outer pipe in which a first fluid inflow part into which a first fluid flows, an inner pipe connection part, and a fluid mixing part are sequentially arranged from the upstream side along the axial direction;
An inner pipe in which a second fluid inflow portion into which a second fluid flows, a turning portion, and a second fluid outflow portion are sequentially arranged from the upstream side along the axial direction;
A mixed fluid inflow section and a mixed fluid outflow section, which are arranged in order along the axial direction from the upstream side, and a mixed fluid discharge pipe,
The second fluid outflow portion is disposed in the fluid mixing portion so as to extend along the axial direction of the outer tube;
The mixed fluid inflow portion is arranged on the downstream side of the second fluid outflow portion in the fluid mixing portion so as to extend along a direction orthogonal to the axial direction of the outer tube,
A second fluid discharge port that discharges the second fluid guided to the second fluid outflow portion radially in a direction orthogonal to the axial direction of the outer tube is provided in the second fluid outflow portion. A line is provided along the circumferential direction,
A mixed fluid inlet for allowing the mixed fluid mixed in the fluid mixing portion to flow into the mixed fluid inflow portion from the radially outer side toward the radially inner side is provided in a row along the circumferential direction of the mixed fluid inflow portion. A two-temperature fluid mixer characterized by comprising: 第２の流体放出口が、前記第２の流体流出部の軸方向に沿って複数列設けられており、
前記混合流体流入口が、前記混合流体流入部の軸方向に沿って複数列設けられていることを特徴とする請求項１に記載の二温流体混合器。 A plurality of second fluid discharge ports are provided along the axial direction of the second fluid outflow portion;
2. The two-temperature fluid mixer according to claim 1, wherein the mixed fluid inflow ports are provided in a plurality of rows along an axial direction of the mixed fluid inflow portion. 前記第１の流体流入部と前記内管接続部とが伸縮継手を介して結合されており、前記内管接続部と前記流体混合部とが伸縮継手を介して結合されていることを特徴とする請求項１または２に記載の二温流体混合器。   The first fluid inflow part and the inner pipe connection part are coupled via an expansion joint, and the inner pipe connection part and the fluid mixing part are coupled via an expansion joint. The two-temperature fluid mixer according to claim 1 or 2. 一端が前記内管接続部の内周面に結合され、他端が前記内管の外周面に接するようにして前記内管を支持する板バネが、周方向に沿うとともに等間隔離間するようにして少なくとも二枚設けられていることを特徴とする請求項１から３のいずれか一項に記載の二温流体混合器。   The leaf springs supporting the inner tube with one end coupled to the inner circumferential surface of the inner tube connecting portion and the other end in contact with the outer circumferential surface of the inner tube are arranged along the circumferential direction and at equal intervals. The two-temperature fluid mixer according to any one of claims 1 to 3, wherein at least two are provided. 前記第１の流体として、温度数１０℃の低温流体が流され、前記第２の流体として、温度数１００℃の高温流体が流されることを特徴とする請求項１に記載の二温流体混合器。   The two-temperature fluid mixing according to claim 1, wherein a low-temperature fluid having a temperature of several tens of degrees Celsius is flowed as the first fluid, and a high-temperature fluid having a temperature of several hundred degrees Celsius is flowed as the second fluid. vessel.
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