JPH10227407A - Liquid forced feeding device - Google Patents
Liquid forced feeding deviceInfo
- Publication number
- JPH10227407A JPH10227407A JP4740997A JP4740997A JPH10227407A JP H10227407 A JPH10227407 A JP H10227407A JP 4740997 A JP4740997 A JP 4740997A JP 4740997 A JP4740997 A JP 4740997A JP H10227407 A JPH10227407 A JP H10227407A
- Authority
- JP
- Japan
- Prior art keywords
- temperature liquid
- liquid container
- cooling fluid
- pipe
- compressed air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は燃料や水等の液体を
圧送する液体圧送装置に関し、特に、高温の液体を圧送
する場合に発生する再蒸発蒸気を低減するものに関す
る。本発明の液体圧送装置は、蒸気系で発生した蒸気の
凝縮水としての復水を一旦集めて、この高温液体である
復水をボイラ―や排熱利用装置へ圧送する装置として特
に適するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid pumping device for pumping a liquid such as fuel or water, and more particularly to a device for reducing reevaporation vapor generated when a high-temperature liquid is pumped. The liquid pumping device of the present invention is particularly suitable as a device for once collecting condensed water as condensed water of steam generated in a steam system and for pumping the condensed water which is a high-temperature liquid to a boiler or a waste heat utilization device. is there.
【0002】[0002]
【従来の技術】従来のこの種の液体圧送装置としては、
例えば特開平7−139705号公報に示されたものが
ある。これは、蒸気使用装置の二次側にスチ―ムエゼク
タと復水タンクと流体圧送式のポンプ手段とを順次接続
したもので、蒸気使用装置で発生した高温液体としての
復水をスチ―ムエゼクタで吸引して復水タンクへ溜め置
き、この復水タンク内の復水をポンプ手段でボイラ―等
の所定箇所へ圧送するものである。2. Description of the Related Art As a conventional liquid pumping apparatus of this kind,
For example, there is one disclosed in JP-A-7-139705. This is a steam ejector in which a steam ejector, a condensate tank, and a fluid pressure pump type pump are sequentially connected to the secondary side of the steam-using device. The water is sucked and stored in a condensate tank, and the condensate in the condensate tank is pumped to a predetermined location such as a boiler by a pump means.
【0003】[0003]
【発明が解決しようとする課題】上記従来の液体圧送装
置では、高温液体としての復水を溜め置く復水タンクで
大量の再蒸発蒸気が発生し、タンク周辺にモヤモヤと立
ち込めて環境条件を悪化させる問題があった。In the above-mentioned conventional liquid pumping apparatus, a large amount of re-evaporated steam is generated in a condensate tank for storing condensed water as a high-temperature liquid. There was a problem.
【0004】また、モヤモヤと立ち込める再蒸発蒸気を
確実に凝縮させて環境の悪化を防止する程度に再蒸発蒸
気を低減させるためには大量の冷却水を必要とする問題
があった。[0004] Further, there is a problem that a large amount of cooling water is required in order to reliably condense the re-evaporated steam that is trapped in the mist and reduce the re-evaporated steam to such an extent that the deterioration of the environment is prevented.
【0005】従って本発明の技術的課題は、大量の冷却
流体を要することなく、再蒸発蒸気を低減することので
きる液体圧送装置を得ることである。[0005] Accordingly, it is an object of the present invention to provide a liquid pumping apparatus which can reduce re-evaporated steam without requiring a large amount of cooling fluid.
【0006】[0006]
【課題を解決するための手段】上記の課題を解決するた
めに講じた手段は、高温液体を容器に溜めて所定箇所へ
圧送するものにおいて、高温液体を溜め置く高温液体容
器に少なくとも2種類の流体を混合する混合器を取り付
け、当該混合器に圧縮空気供給管と冷却流体供給管を接
続すると共に、当該圧縮空気供給管に渦流管を介在させ
て当該渦流管の低温空気取出し口と混合器を接続し、且
つ、混合器の出口を高温液体容器の内部と連通したもの
である。Means taken to solve the above problem is to store at least two kinds of high-temperature liquids in a high-temperature liquid container for storing the high-temperature liquid. A mixer for mixing a fluid is attached, a compressed air supply pipe and a cooling fluid supply pipe are connected to the mixer, and a vortex pipe is interposed between the compressed air supply pipe and a low-temperature air outlet of the vortex pipe and the mixer. And the outlet of the mixer is communicated with the inside of the high-temperature liquid container.
【0007】[0007]
【発明の実施の形態】圧縮空気供給管に渦流管を介在さ
せて、渦流管の低温空気取出し口を混合器と接続したこ
とにより、渦流管で発生した低温空気が混合器へ供給さ
れる。渦流管は従来周知の通り、圧縮空気を円筒形の渦
管の中に渦状の流れになるように流入させ、この回転運
動する空気の流れが円筒内壁近くに増圧域を作り出し、
軸線近くに減圧域を作り出して、増圧された空気は断熱
圧縮により高温となり、一方低圧域の空気は断熱膨脹に
より低温となって、それぞれ渦流管の両端から外部へ流
出するものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS By connecting a low-temperature air outlet of a vortex tube to a mixer with a vortex tube interposed in a compressed air supply tube, low-temperature air generated in the vortex tube is supplied to the mixer. As is well known in the art, the vortex tube allows compressed air to flow into the cylindrical vortex tube in a vortex flow, and this rotating air flow creates a pressure-increasing zone near the inner wall of the cylinder.
A depressurized zone is created near the axis, and the intensified air becomes hot due to adiabatic compression, while air in the low pressure zone becomes cold due to adiabatic expansion, and flows out from both ends of the vortex tube to the outside.
【0008】渦流管で発生した低温空気は、高温液体容
器に取り付けた混合器で冷却流体と混合されて高温液体
容器の内部へ供給される。この場合、高温液体容器内へ
至る圧縮空気は渦流管で断熱膨脹により極めて低温状態
となっており、混合された冷却流体も熱を奪われて低温
状態となり、高温液体容器内の再蒸発蒸気を急速に冷却
し凝縮させることができる。The low-temperature air generated in the vortex tube is mixed with a cooling fluid by a mixer attached to the high-temperature liquid container and supplied to the inside of the high-temperature liquid container. In this case, the compressed air reaching the high-temperature liquid container is in an extremely low temperature state due to adiabatic expansion in the vortex tube, and the mixed cooling fluid is also deprived of heat to a low temperature state, and the re-evaporated vapor in the high-temperature liquid container is removed. Can be rapidly cooled and condensed.
【0009】渦流管で圧縮空気が断熱膨脹して冷却流体
を冷却する割合だけ蒸気の凝縮が進むこととなり、只単
に冷却流体だけを供給して再蒸発蒸気を凝縮する場合と
比較して、より少ない冷却流体でもって蒸気を確実に凝
縮させることができ、モヤモヤと立ち込める再蒸発蒸気
を低減することができる。[0009] Condensing of the steam proceeds by the rate at which the compressed air adiabatically expands in the vortex tube and cools the cooling fluid, which is greater than the case where only the cooling fluid is supplied and the re-evaporated steam is condensed. Steam can be surely condensed with a small amount of cooling fluid, and the amount of re-evaporated steam that can accumulate can be reduced.
【0010】圧縮空気と冷却流体を混合する混合器とし
ては、例えば、ノズルを内蔵したエゼクタを用いること
ができる。即ち、ノズルに圧縮空気供給管を接続して、
エゼクタの吸引口に冷却流体供給管を接続すると共に、
エゼクタの出口を高温液体容器の内部と連通することに
より、ノズルを通過する圧縮空気は冷却流体を吸引しつ
つこの通過時においても更に断熱膨脹をして高温液体容
器へ供給され、容器内の再蒸発蒸気を凝縮させてモヤモ
ヤを低減することができる。As a mixer for mixing the compressed air and the cooling fluid, for example, an ejector having a built-in nozzle can be used. That is, connect the compressed air supply pipe to the nozzle,
Connect the cooling fluid supply pipe to the suction port of the ejector,
By communicating the outlet of the ejector with the inside of the high-temperature liquid container, the compressed air passing through the nozzle is further adiabatically expanded during this passage while sucking the cooling fluid, and is supplied to the high-temperature liquid container. Evaporation steam can be condensed to reduce mist.
【0011】[0011]
【実施例】図1において、高温液体容器1と、高温液体
容器1に復水等の高温液体を供給する復水供給管2と、
高温液体容器1に取り付けた混合器としてのエゼクタ3
と、エゼクタ3に接続した冷却流体供給管5と、同じく
エゼクタ3と接続した渦流管30と、渦流管30に接続
した圧縮空気供給管4、及び、液体圧送手段としてのポ
ンプ手段6で液体圧送装置を構成する。1, a high-temperature liquid container 1, a condensate supply pipe 2 for supplying a high-temperature liquid such as condensate to the high-temperature liquid container 1,
Ejector 3 as a mixer attached to high-temperature liquid container 1
, A cooling fluid supply pipe 5 connected to the ejector 3, a vortex pipe 30 also connected to the ejector 3, a compressed air supply pipe 4 connected to the vortex pipe 30, and liquid pumping by a pump means 6 as a liquid pumping means. Configure the device.
【0012】圧縮空気供給管4は図示しない高圧圧縮空
気の供給源と接続して、バルブ7を介して渦流管30と
接続すると共に、バルブ31を介して混合器としてのエ
ゼクタ3の入口側とも接続する。渦流管30下部の低温
空気出口32をバルブ33を介してエゼクタ3のノズル
部8と接続する。渦流管30の上部の高温空気出口35
には導出管36を接続して所定箇所へ高温空気を導く。The compressed air supply pipe 4 is connected to a high-pressure compressed air supply source (not shown), is connected to the vortex pipe 30 via a valve 7, and is also connected to the inlet side of the ejector 3 as a mixer via a valve 31. Connecting. The low-temperature air outlet 32 below the vortex tube 30 is connected to the nozzle 8 of the ejector 3 via a valve 33. Hot air outlet 35 at the top of vortex tube 30
Is connected to an outlet pipe 36 to guide hot air to a predetermined location.
【0013】混合器としてのエゼタ3のノズル部8の内
部には絞り部を内蔵すると共に、その外周部に吸引口9
を設ける。吸引口9にはバルブ10を介して冷却流体供
給管5を接続する。A throttle section is built in the nozzle section 8 of the ejector 3 as a mixer, and a suction port 9 is formed in an outer peripheral section thereof.
Is provided. The cooling fluid supply pipe 5 is connected to the suction port 9 via a valve 10.
【0014】ノズル部8の下方にディフュ―ザ部11を
設けて、高温液体容器1の上部開口部12に取り付け
る。ディフュ―ザ部11の下部に、圧縮空気又は圧縮空
気と冷却流体との混合流体をディフュ―ザ部11下方全
周に噴射する噴射口13,14を取り付ける。この噴射
口13,14から噴射される圧縮空気又は混合流体は、
高温液体容器1内の再蒸発蒸気を開口部12から外部に
排出しないようにすると共に、再蒸発蒸気をディフュ―
ザ部11下方に集めて凝縮を促進するためのものであ
る。ディフュ―ザ部11の下方で高温液体容器1内の上
方には、圧縮空気と冷却流体の混合流体を高温液体容器
1内のほぼ全体にわたって分散する分散板15を取り付
ける。分散板15は略円錐形状で複数の連通孔16を設
けたものである。A diffuser section 11 is provided below the nozzle section 8 and is attached to the upper opening 12 of the high temperature liquid container 1. At the lower part of the diffuser 11, injection ports 13, 14 for injecting compressed air or a mixed fluid of the compressed air and the cooling fluid all around the lower part of the diffuser 11 are attached. The compressed air or the mixed fluid injected from the injection ports 13 and 14 is
The re-evaporated vapor in the high-temperature liquid container 1 is prevented from being discharged to the outside from the opening 12 and the re-evaporated vapor is diffused.
It is collected under the part 11 to promote condensation. A dispersing plate 15 for dispersing a mixed fluid of compressed air and cooling fluid over substantially the entire inside of the high-temperature liquid container 1 is attached below the diffuser section 11 and above the high-temperature liquid container 1. The dispersion plate 15 has a substantially conical shape and a plurality of communication holes 16.
【0015】復水供給管2はスチ―ムトラップ17を介
して図示しない蒸気使用装置の出口側や再蒸発タンク等
と接続して高温液体としての復水を高温液体容器1内へ
供給する。高温液体容器1内に至った復水は容器1内で
再蒸発する。The condensate supply pipe 2 is connected via a steam trap 17 to the outlet side of a steam-using device (not shown), a re-evaporation tank, or the like, and supplies condensate as a high-temperature liquid into the high-temperature liquid container 1. The condensed water that has reached the high-temperature liquid container 1 is re-evaporated in the container 1.
【0016】高温液体容器1の下端には、凝縮した再蒸
発蒸気と冷却流体を液体圧送手段としてのポンプ手段6
へ流下させるための管18を、バルブ19と逆止弁20
を介して接続する。逆止弁20は、高温液体容器1から
ポンプ手段6への流体の流下のみを許容し、その反対の
流体の通過は阻止するものである。At the lower end of the high-temperature liquid container 1, pump means 6 serving as a liquid pumping means for supplying condensed reevaporated vapor and cooling fluid is provided.
The pipe 18 for flowing down to the valve 19 and the check valve 20
Connect through. The check valve 20 permits only the flow of the fluid from the high-temperature liquid container 1 to the pump means 6, and prevents the passage of the fluid opposite thereto.
【0017】ポンプ手段6は、管18から液体が流下す
ると共に、同じく逆止弁21を設けた管22から液体を
所定箇所へ圧送するものであり、管22は途中で分岐し
て冷却流体供給管5と接続する。ポンプ手段6には、バ
ルブ23を介して高圧の圧送用流体を供給する高圧圧送
流体管24を接続すると共に、圧送終了後の高圧圧送流
体を外部に排出する排出管25をバルブ26を介して接
続する。高圧圧送流体管24には、圧縮空気供給管4を
分岐して接続することもできる。The pump means 6 serves to flow the liquid down from the pipe 18 and to pump the liquid from the pipe 22 provided with the check valve 21 to a predetermined location. Connect to tube 5. The pump means 6 is connected to a high-pressure pumping fluid pipe 24 for supplying a high-pressure pumping fluid via a valve 23, and a discharge pipe 25 for discharging the high-pressure pumping fluid after the pumping to the outside via a valve 26. Connecting. The compressed air supply pipe 4 can also be branched and connected to the high-pressure pumping fluid pipe 24.
【0018】高温液体容器1から逆止弁20を通ってポ
ンプ手段6内へ流下した液体が所定の液位に達すると、
内部に設けた液位検出機構が働いてポンプ手段6内部と
高圧圧送流体管24が連通すると共に、排出管25が遮
断され、ポンプ手段6の内部に溜っていた液体は高圧圧
送流体管24からの流体により、逆止弁21を経て管2
2から所定の箇所へ圧送されるものである。When the liquid flowing from the high-temperature liquid container 1 into the pump means 6 through the check valve 20 reaches a predetermined liquid level,
The inside of the pump means 6 communicates with the high-pressure pumping fluid pipe 24 by operating the liquid level detecting mechanism provided therein, and the discharge pipe 25 is shut off. Pipe 2 through the check valve 21
2 to a predetermined location.
【0019】高温液体容器1内で発生する再蒸発蒸気を
低減させる場合は、渦流管30で発生した低温空気を出
口32から混合器としてのエゼクタ3で冷却流体と混合
させ高温液体容器1内へ供給することにより、再蒸発蒸
気を凝縮させてモヤモヤを低減する。即ち、圧縮空気供
給管4から供給される圧縮空気は、渦流管30で断熱膨
脹により低温化してエゼクタ3のノズル部8で流速を増
し吸引力を発生して吸引口9から冷却流体を吸引し混合
されて高温液体容器1内へ供給される。この場合、低温
化した圧縮空気によって冷却流体が冷却されながら圧縮
空気と混合される。圧縮空気と冷却流体の混合流体は分
散板15により高温液体容器1内全体に行き渡るように
供給される。供給された混合流体は、高温液体容器1内
に充満している再蒸発蒸気と熱交換し、再蒸発蒸気を凝
縮させて下端の管18からポンプ手段6へ流下する。In order to reduce the re-evaporated vapor generated in the high-temperature liquid container 1, the low-temperature air generated in the vortex tube 30 is mixed with the cooling fluid from the outlet 32 by the ejector 3 serving as a mixer, and is mixed into the high-temperature liquid container 1. By supplying, the re-evaporated steam is condensed to reduce the mist. That is, the compressed air supplied from the compressed air supply pipe 4 is cooled down by adiabatic expansion in the vortex pipe 30, the flow velocity is increased in the nozzle portion 8 of the ejector 3, a suction force is generated, and the cooling fluid is sucked from the suction port 9. The mixture is supplied to the high-temperature liquid container 1. In this case, the cooling fluid is mixed with the compressed air while being cooled by the low-temperature compressed air. The mixed fluid of the compressed air and the cooling fluid is supplied by the dispersion plate 15 so as to be distributed throughout the high-temperature liquid container 1. The supplied mixed fluid exchanges heat with the re-evaporated steam filled in the high-temperature liquid container 1, condenses the re-evaporated steam, and flows down from the pipe 18 at the lower end to the pump means 6.
【0020】ポンプ手段6へ流下して溜った液体は前述
した通り管22から所定箇所へ圧送される。本実施例に
おいては、冷却流体供給管5と管22を接続したことに
より、ポンプ手段6からの圧送液体の一部を、高温液体
容器1へ供給する冷却流体として利用することができ
る。The liquid flowing down to the pump means 6 is pumped from the pipe 22 to a predetermined location as described above. In this embodiment, since the cooling fluid supply pipe 5 and the pipe 22 are connected, a part of the pumping liquid from the pump unit 6 can be used as a cooling fluid to be supplied to the high-temperature liquid container 1.
【0021】本実施例においては、高温液体容器1内に
1台の混合器としてのエゼクタ3を配置した例を示した
が、高温液体容器1の大きさや凝縮させる再蒸発蒸気の
量に応じてエゼクタ3の数は1台に限られることはな
く、2台以上の複数台を配置することもできる。In this embodiment, an example is shown in which the ejector 3 as a single mixer is disposed in the high-temperature liquid container 1, but it depends on the size of the high-temperature liquid container 1 and the amount of re-evaporated vapor to be condensed. The number of ejectors 3 is not limited to one, and two or more ejectors 3 can be arranged.
【0022】[0022]
【発明の効果】本発明によれば、渦流管における圧縮空
気の断熱膨脹によって冷却流体を低温状態として高温液
体容器内へ供給することができ、より少ない冷却流体で
もって再蒸発蒸気を確実に低減させることができる。According to the present invention, the cooling fluid can be supplied to the high-temperature liquid container in a low temperature state by the adiabatic expansion of the compressed air in the vortex tube, and the re-evaporation steam can be reliably reduced with less cooling fluid. Can be done.
【0023】また、混合器からは冷却流体のみならず、
断熱膨脹して低温化した圧縮空気も混合して供給される
こととなり、更に確実に高温液体容器内の蒸気を凝縮さ
せ低減することができる。Further, not only the cooling fluid from the mixer,
The compressed air which has been adiabatically expanded and cooled to a low temperature is also supplied in a mixed state, so that the vapor in the high-temperature liquid container can be more reliably condensed and reduced.
【図1】本発明の液体圧送装置の実施例を示す一部断面
構成図である。FIG. 1 is a partial sectional configuration view showing an embodiment of a liquid pressure feeding device of the present invention.
1 高温液体容器 2 復水供給管 3 エゼクタ 4 圧縮空気供給管 5 冷却流体供給管 6 ポンプ手段 8 ノズル部 9 吸引口 11 ディフュ―ザ 15 分散板 20,21 逆止弁 24 高圧圧送流体管 30 渦流管 32 低温空気出口 35 高温空気出口 DESCRIPTION OF SYMBOLS 1 High temperature liquid container 2 Condensate supply pipe 3 Ejector 4 Compressed air supply pipe 5 Cooling fluid supply pipe 6 Pump means 8 Nozzle part 9 Suction port 11 Diffuser 15 Dispersion plate 20 and 21 Check valve 24 High pressure pressurized fluid pipe 30 Swirl Pipe 32 Low temperature air outlet 35 High temperature air outlet
Claims (1)
するものにおいて、高温液体を溜め置く高温液体容器に
少なくとも2種類の流体を混合する混合器を取り付け、
当該混合器に圧縮空気供給管と冷却流体供給管を接続す
ると共に、当該圧縮空気供給管に渦流管を介在させて当
該渦流管の低温空気取出し口と混合器を接続し、且つ、
混合器の出口を高温液体容器の内部と連通したことを特
徴とする液体圧送装置。An apparatus for storing a high-temperature liquid in a container and pumping the high-temperature liquid to a predetermined location, wherein a high-temperature liquid container for storing the high-temperature liquid is provided with a mixer for mixing at least two types of fluids,
A compressed air supply pipe and a cooling fluid supply pipe are connected to the mixer, and a low temperature air outlet of the swirl pipe and the mixer are connected with a swirl pipe interposed in the compressed air supply pipe, and
A liquid pumping device characterized in that an outlet of the mixer communicates with the inside of the high temperature liquid container.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4740997A JPH10227407A (en) | 1997-02-14 | 1997-02-14 | Liquid forced feeding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4740997A JPH10227407A (en) | 1997-02-14 | 1997-02-14 | Liquid forced feeding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10227407A true JPH10227407A (en) | 1998-08-25 |
Family
ID=12774339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4740997A Pending JPH10227407A (en) | 1997-02-14 | 1997-02-14 | Liquid forced feeding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10227407A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010024902A (en) * | 2008-07-16 | 2010-02-04 | Tlv Co Ltd | Liquid pressure feeder |
KR20190075543A (en) * | 2017-12-21 | 2019-07-01 | 동명대학교산학협력단 | Direct Contact Type Of Oil Cooling Device Using Vortex Tube |
-
1997
- 1997-02-14 JP JP4740997A patent/JPH10227407A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010024902A (en) * | 2008-07-16 | 2010-02-04 | Tlv Co Ltd | Liquid pressure feeder |
KR20190075543A (en) * | 2017-12-21 | 2019-07-01 | 동명대학교산학협력단 | Direct Contact Type Of Oil Cooling Device Using Vortex Tube |
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