JP2002181231A - Force feed device for liquid - Google Patents
Force feed device for liquidInfo
- Publication number
- JP2002181231A JP2002181231A JP2000381132A JP2000381132A JP2002181231A JP 2002181231 A JP2002181231 A JP 2002181231A JP 2000381132 A JP2000381132 A JP 2000381132A JP 2000381132 A JP2000381132 A JP 2000381132A JP 2002181231 A JP2002181231 A JP 2002181231A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- check valve
- inlet
- outlet
- water hammer
- 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
- Check Valves (AREA)
- Details Of Valves (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
高圧作動流体によって圧送する液体圧送装置に関し、特
に、水撃作用即ちウォーターハンマーを防止するものに
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
ある復水をボイラー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 by a high-pressure working fluid, and more particularly to a device for preventing a water hammer action, that is, a water hammer. 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. .
【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１０−６１８８５号公報に示されたものが
ある。これは、容器内に液体が溜まって液位が上昇する
とフロート３も上昇して、作動蒸気導入口６が開口する
と共に作動蒸気排出口７が閉口し、作動蒸気導入口６か
ら供給される高圧蒸気によって容器内の液体が液体排出
口９から外部に圧送されるものである。2. Description of the Related Art As a conventional liquid pumping apparatus of this kind,
For example, there is one disclosed in JP-A-10-61885. This is because when the liquid is accumulated in the container and the liquid level rises, the float 3 also rises, the working steam inlet 6 opens, the working steam outlet 7 closes, and the high pressure supplied from the working steam inlet 6 The liquid in the container is pressure-fed out from the liquid discharge port 9 by the steam.
【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、液体排出口や液体流入口の近傍でウォーターハ
ンマーが発生して、著しい衝撃振動を生じたり、場合に
よっては液体圧送装置を損傷する問題があった。In the above-described conventional liquid pumping apparatus, a water hammer is generated in the vicinity of the liquid discharge port and the liquid inflow port, causing remarkable shock vibration and possibly damaging the liquid pumping apparatus. There was a problem.
【０００４】液体排出口や液体流入口の近傍では、液体
が高速で流下する場合があり、このような場合に高速液
体が配管の曲り部や弁などに激しく衝突してウォーター
ハンマーを引き起こす。また、圧送液体が蒸気の凝縮し
た高温の復水である場合は、排出口や流入口近傍では再
蒸発した蒸気と復水の混合流体となり、蒸気が瞬間的に
凝縮してその体積が急激に減少することによってウォー
ターハンマーを引き起こす。[0004] In the vicinity of the liquid discharge port and the liquid inlet, the liquid may flow down at a high speed, and in such a case, the high-speed liquid violently collides with a bent portion of a pipe or a valve to cause a water hammer. If the pumped liquid is high-temperature condensate with vapor condensed, a mixed fluid of re-evaporated vapor and condensate is formed near the discharge port and inlet, and the vapor is instantaneously condensed and its volume rapidly increases. Causes a water hammer by reducing.
【０００５】従って本発明の技術的課題は、ウォーター
ハンマーを防止することのできる液体圧送装置を得るこ
とである。Accordingly, it is an object of the present invention to provide a liquid pumping apparatus capable of preventing a water hammer.
【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、密閉状容器に高圧の作動流体導入口
と作動流体排出口、及び、圧送される液体流入口と液体
排出口を設けて、密閉状容器内に溜まった液体の液位に
応じて作動流体導入口が開口すると共に作動流体排出口
が閉口して、密閉状容器内に溜まった液体を液体排出口
から密閉状容器の外部へ圧送するものにおいて、圧送液
体流入口と排出口にそれぞれ逆止弁を取り付けると共
に、当該逆止弁に弾性部材と緩衝室から成るウォーター
ハンマー防止手段を具備したものである。Means taken to solve the above problems include a high-pressure working fluid inlet and a working fluid outlet in a closed container, and a liquid inlet and a liquid outlet to be pumped. The working fluid inlet is opened and the working fluid outlet is closed according to the liquid level of the liquid stored in the sealed container, and the liquid stored in the sealed container is sealed from the liquid outlet through the liquid outlet. In the apparatus for feeding the pressure to the outside of the container, a check valve is attached to each of the inlet and the outlet of the liquid to be fed, and the check valve is provided with a water hammer preventing means including an elastic member and a buffer chamber.
【０００７】[0007]
【発明の実施の形態】圧送液体流入口と排出口に取り付
けた逆止弁に、弾性部材と緩衝室から成るウォーターハ
ンマー防止手段を備えたことにより、ウォーターハンマ
ーの衝撃を弾性部材と緩衝室で吸収することによってウ
ォーターハンマーを防止することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS A check valve attached to an inlet and an outlet of a pressure-feeding liquid is provided with a water hammer preventing means comprising an elastic member and a buffer chamber, so that the impact of the water hammer can be prevented by the elastic member and the buffer chamber. Water hammer can be prevented by absorbing.
【０００８】[0008]
【実施例】図１に示す液体圧送装置２３は従来例のもの
と基本構造は同じであり、作動蒸気導入口２１と排出口
２２、及び、圧送液体流入口１９と液体排出口２０を設
けると共に、流入口１９と排出口２０にそれぞれウォー
ターハンマー防止手段を備えた逆止弁３０，３１を新た
に取り付けたものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid pumping apparatus 23 shown in FIG. 1 has the same basic structure as that of a conventional apparatus, and has a working steam inlet 21 and a discharge port 22, and a pumping liquid inlet 19 and a liquid outlet 20. And check valves 30 and 31 provided with water hammer prevention means at the inflow port 19 and the discharge port 20, respectively.
【０００９】逆止弁３０，３１は図２示す構造のものを
取り付け方向を反対にして液体流入口１９側と排出口２
０側に取り付けたもので、図２において、略円筒状の本
体１と蓋部材２で逆止弁３０、３１のケーシングを形成
して内部には中空円筒状の緩衝室４を設ける。この緩衝
室４を介して、本体１に入口５を設け、蓋部材２に出口
６を設ける。The check valves 30 and 31 are of the structure shown in FIG.
In FIG. 2, the casings of the check valves 30 and 31 are formed by a substantially cylindrical main body 1 and a cover member 2, and a hollow cylindrical buffer chamber 4 is provided therein. An inlet 5 is provided in the main body 1 and an outlet 6 is provided in the lid member 2 through the buffer chamber 4.
【００１０】緩衝室４内に弾性部材としての部分圧縮状
態のコイルバネ８，９を介在して、摺動可能に円筒状の
逆止弁ユニット７を配置する。緩衝室４とコイルバネ
８，９でウォーターハンマー防止手段を構成する。A cylindrical check valve unit 7 is slidably disposed in the buffer chamber 4 with coil springs 8 and 9 in a partially compressed state as elastic members interposed therebetween. The buffer chamber 4 and the coil springs 8 and 9 constitute water hammer prevention means.
【００１１】逆止弁ユニット７は、中空円筒状で入口５
側に貫通孔１６を形成した弁ユニット本体１０と、弁ユ
ニット本体１０の内端に設けた環状の弁座１１と、環状
弁座１１に対向して配置した円板状の弁体１２と、弁体
１２を弁座１１方向に弾性付勢する圧縮コイルバネ１
３、及び、弁ユニット本体１０に固着され圧縮コイルバ
ネ１３の一端部を保持するバネ受け部材１４とで構成す
る。The check valve unit 7 has a hollow cylindrical shape and an inlet 5.
A valve unit main body 10 having a through hole 16 formed on a side thereof, an annular valve seat 11 provided at an inner end of the valve unit main body 10, a disc-shaped valve body 12 disposed to face the annular valve seat 11, Compression coil spring 1 for elastically urging valve body 12 in the direction of valve seat 11
3 and a spring receiving member 14 fixed to the valve unit main body 10 and holding one end of the compression coil spring 13.
【００１２】バネ受け部材１４の中央には貫通孔１５を
設ける。また、円板状弁体１２のコイルバネ１３側端部
には凸部１８を形成して、コイルバネ１３が最大圧縮し
た場合のストッパーとする。A through hole 15 is provided at the center of the spring receiving member 14. A protrusion 18 is formed at the end of the disc-shaped valve element 12 on the side of the coil spring 13 to serve as a stopper when the coil spring 13 is compressed to the maximum.
【００１３】逆止弁ユニット７は、入口５から流体が流
入してくると、その流体圧力によってコイルバネ１３が
圧縮して弁体１２が弁座１１から離座することによっ
て、流体を出口６へと流下させ、入口５からの流体の流
入がなくなると、コイルバネ１３の弾性力によって弁体
１２が弁座１１に着座して、流体の逆流を防止するもの
である。When the fluid flows in from the inlet 5, the check valve unit 7 compresses the coil spring 13 by the fluid pressure, and the valve body 12 separates from the valve seat 11. When the inflow of the fluid from the inlet 5 stops, the valve body 12 is seated on the valve seat 11 by the elastic force of the coil spring 13 to prevent the fluid from flowing backward.
【００１４】弁ユニット本体１０の中央外周部には摺動
リング１７を嵌め込んで、本体１の内周面と摺動可能
に、且つ、流体の漏洩は防止するように配置する。A sliding ring 17 is fitted on the central outer peripheral portion of the valve unit main body 10 so as to be slidable on the inner peripheral surface of the main body 1 and to prevent fluid leakage.
【００１５】図１における逆止弁３１は、図２に示す方
向通り、即ち、図２の入口５側を図１の液体排出口２０
側と連通し、一方、図１の逆止弁３０は、液体流入口１
９側と図２の出口６側とを連通する。The check valve 31 in FIG. 1 is arranged in the direction shown in FIG. 2, ie, the inlet 5 side of FIG.
1 while the check valve 30 of FIG.
9 and the outlet 6 in FIG.
【００１６】本実施例においては、液体圧送装置２３に
液体圧送正否検出手段２４、及び、この液体圧送正否検
出手段２４と双方向通信が可能な遠隔監視装置２５を配
置する。In this embodiment, a liquid pressure feeding device 23 is provided with a liquid pressure feeding correct / unsuccessful detector 24, and a remote monitoring device 25 capable of two-way communication with the liquid pressure feeding right / wrong detecting device 24.
【００１７】液体圧送正否検出手段２４は、液体圧送装
置２３が正常に作動して液体を圧送しているのか否かが
検出できるものであり、 正常作動又は異常作動を表示
部２６に表示することができるようにする。また、液体
圧送正否検出手段２４には、検出結果をワイヤレスでア
ンテナ２７から遠隔監視装置２５に通信できる通信手段
を内蔵する。The liquid pressure sending correct / incorrect detecting means 24 can detect whether the liquid feeding device 23 is operating normally and pumping the liquid, and displays a normal operation or an abnormal operation on the display unit 26. To be able to In addition, the liquid pressure feeding correctness detection means 24 has a built-in communication means capable of wirelessly communicating the detection result from the antenna 27 to the remote monitoring device 25.
【００１８】遠隔監視装置２５は、液体圧送装置２３か
ら離れた位置、例えば工場プラントの集中制御監視室に
配置され、液体圧送正否検出手段２４からの信号をアン
テナ２８で受信して液体圧送装置２３の作動が正常か否
かを表示部２９に表示することができるものである。ま
た、遠隔監視装置２５から検出結果や警報等を液体圧送
正否検出手段２４に通信して表示することができるよう
にすることもできる。The remote monitoring device 25 is disposed at a position distant from the liquid pressure feeding device 23, for example, in a centralized control monitoring room of a factory plant. Can be displayed on the display unit 29 as to whether or not the operation is normal. Further, the detection result, the alarm, and the like can be communicated from the remote monitoring device 25 to the liquid pressure feeding correctness detection means 24 and displayed.
【００１９】液体圧送装置２３の例えば液体排出口２０
の近傍でウォーターハンマーが発生した場合、その衝撃
振動は逆止弁３１に伝わり、まず、弁体１２の凸部１８
がバネ受け部材１４に接する位置まで変位し、続いて逆
止弁ユニット７が蓋部材２側に変位してコイルバネ９を
圧縮することによって、衝撃振動を緩衝してウォーター
ハンマーを吸収し防止することができる。For example, the liquid outlet 20 of the liquid pumping device 23
When a water hammer is generated in the vicinity of the valve body, the impact vibration is transmitted to the check valve 31, and first, the convex portion 18 of the valve body 12
Is displaced to a position where it comes into contact with the spring receiving member 14, and then the check valve unit 7 is displaced toward the lid member 2 to compress the coil spring 9, thereby absorbing the impact vibration and absorbing and preventing the water hammer. Can be.
【００２０】また逆止弁３１は、液体排出口２０とは反
対側で発生したウォーターハンマーも、逆止弁ユニット
７が入口５側に変位してコイルバネ８を圧縮することに
よってそのウォーターハンマーを吸収し防止することが
できる。一方の逆止弁３０も同様に両側のウォーターハ
ンマーを吸収し防止することができる。The check valve 31 absorbs the water hammer generated on the side opposite to the liquid discharge port 20 by displacing the check valve unit 7 toward the inlet 5 and compressing the coil spring 8. Can be prevented. Similarly, one check valve 30 can also absorb and prevent water hammer on both sides.
【００２１】本実施例においては、逆止弁ユニット７と
して円板状の弁体１２を有する逆止弁を用いた例を示し
たが、逆止弁としてはこの形状のものに限られることは
なく、例えばプレート逆止弁やバタフライ逆止弁あるい
はボール、スイング、リフト等の逆止弁を同様に用いる
ことができる。In this embodiment, an example is shown in which a check valve having a disc-shaped valve element 12 is used as the check valve unit 7, but the check valve is not limited to this shape. Instead, for example, a check valve such as a plate check valve, a butterfly check valve, or a check valve such as a ball, a swing, and a lift can be similarly used.
【００２２】[0022]
【発明の効果】本発明によれば、圧送液体流入口と排出
口に取り付けた逆止弁に、弾性部材と緩衝室から成るウ
ォーターハンマー防止手段を備えたことにより、ウォー
ターハンマーの衝撃をこの弾性部材と緩衝室で吸収する
ことによってウォーターハンマーを防止することができ
る。According to the present invention, the check valve attached to the inlet and the outlet of the pressure-feeding liquid is provided with a water-hammer preventing means comprising an elastic member and a buffer chamber. Water hammer can be prevented by absorbing in the member and the buffer chamber.
【図１】本発明の液体圧送装置の構成図。FIG. 1 is a configuration diagram of a liquid pressure feeding device of the present invention.
【図２】本発明の液体圧送装置に用いる逆止弁の断面
図。FIG. 2 is a sectional view of a check valve used in the liquid pressure feeding device of the present invention.
１ 本体 ４ 緩衝室 ５ 入口 ６ 出口 ７ 逆止弁ユニット ８，９ コイルバネ １１ 弁座 １２ 弁体 １９ 液体流入口 ２０ 液体排出口 ２１ 作動流体導入口 ２２ 作動流体排出口 ２３ 液体圧送装置 ３０，３１ 逆止弁 DESCRIPTION OF SYMBOLS 1 Main body 4 Buffer chamber 5 Inlet 6 Outlet 7 Check valve unit 8, 9 Coil spring 11 Valve seat 12 Valve element 19 Liquid inlet 20 Liquid outlet 21 Working fluid inlet 22 Working fluid outlet 23 Liquid pumping device 30, 31 Reverse Stop valve
Claims (1)
動流体排出口、及び、圧送される液体流入口と液体排出
口を設けて、密閉状容器内に溜まった液体の液位に応じ
て作動流体導入口が開口すると共に作動流体排出口が閉
口して、密閉状容器内に溜まった液体を液体排出口から
密閉状容器の外部へ圧送するものにおいて、圧送液体流
入口と排出口にそれぞれ逆止弁を取り付けると共に、当
該逆止弁に弾性部材と緩衝室から成るウォーターハンマ
ー防止手段を具備したことを特徴とする液体圧送装置。1. A closed container is provided with a high-pressure working fluid inlet and a working fluid outlet, and a liquid inlet and a liquid outlet to be fed under pressure, according to the liquid level of the liquid stored in the sealed container. The working fluid inlet is opened and the working fluid outlet is closed, and the liquid accumulated in the sealed container is pumped from the liquid outlet to the outside of the sealed container. A liquid pumping device, wherein a check valve is attached to each of the check valves, and the check valves are provided with a water hammer preventing means including an elastic member and a buffer chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000381132A JP2002181231A (en) | 2000-12-15 | 2000-12-15 | Force feed device for liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000381132A JP2002181231A (en) | 2000-12-15 | 2000-12-15 | Force feed device for liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002181231A true JP2002181231A (en) | 2002-06-26 |
Family
ID=18849203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000381132A Pending JP2002181231A (en) | 2000-12-15 | 2000-12-15 | Force feed device for liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002181231A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012121054A1 (en) * | 2011-03-07 | 2012-09-13 | 株式会社ミクニ | Means for mounting check valve into housing comprising fluid path therein |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534036U (en) * | 1978-08-23 | 1980-03-05 | ||
| JPH05187565A (en) * | 1992-01-10 | 1993-07-27 | Inax Corp | Check valve having pressure relaxation structure |
| JPH10288298A (en) * | 1997-04-15 | 1998-10-27 | Tlv Co Ltd | Liquid force-feeding device |
| JPH1163391A (en) * | 1997-06-13 | 1999-03-05 | Tlv Co Ltd | Liquid force-feeder |
-
2000
- 2000-12-15 JP JP2000381132A patent/JP2002181231A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534036U (en) * | 1978-08-23 | 1980-03-05 | ||
| JPH05187565A (en) * | 1992-01-10 | 1993-07-27 | Inax Corp | Check valve having pressure relaxation structure |
| JPH10288298A (en) * | 1997-04-15 | 1998-10-27 | Tlv Co Ltd | Liquid force-feeding device |
| JPH1163391A (en) * | 1997-06-13 | 1999-03-05 | Tlv Co Ltd | Liquid force-feeder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012121054A1 (en) * | 2011-03-07 | 2012-09-13 | 株式会社ミクニ | Means for mounting check valve into housing comprising fluid path therein |
| JP2012184820A (en) * | 2011-03-07 | 2012-09-27 | Mikuni Corp | Means for mounting check valve into housing comprising fluid path therein |
| CN103415732A (en) * | 2011-03-07 | 2013-11-27 | 株式会社三国 | Means for mounting check valve into housing comprising fluid path therein |
| CN103415732B (en) * | 2011-03-07 | 2015-03-11 | 株式会社三国 | Means for mounting check valve into housing comprising fluid path therein |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2186063C (en) | Internal relief and bypass valve for pumps and piping systems | |
| CA2946431A1 (en) | Electromechanical pressure relief valve | |
| JP2002181231A (en) | Force feed device for liquid | |
| JP4762316B2 (en) | Transient pressure spike remover in stationary fluid systems | |
| JP3360232B2 (en) | Liquid pumping device | |
| JP4847385B2 (en) | Liquid pumping device | |
| JP4607694B2 (en) | Liquid pumping device | |
| US4725208A (en) | Positive shut off electromagnetic fluid pump | |
| JP5839665B2 (en) | Liquid pumping device monitoring system | |
| JP4372612B2 (en) | Liquid pumping device | |
| WO2019058730A1 (en) | State determination device of liquid pumping apparatus, and liquid pumping apparatus | |
| JP4624880B2 (en) | Liquid pumping device | |
| KR101861651B1 (en) | A Pump Pipe Header Including Internal Check Valve And A Booster Pump System With Pump Pipe Header Including Internal Check Thereof | |
| JP4732066B2 (en) | Liquid pumping device | |
| JP4854844B2 (en) | Liquid pumping device monitoring system | |
| JP5937820B2 (en) | Liquid pumping device | |
| JP2002181230A (en) | Water hammer preventer | |
| JP2005325772A (en) | Liquid force feed device | |
| JP2007046738A (en) | Liquid force feed apparatus | |
| JPH08576Y2 (en) | Condensate recovery device | |
| JP4738939B2 (en) | Liquid pumping device | |
| JP5117216B2 (en) | Liquid pumping device | |
| JP4372613B2 (en) | Liquid pumping device | |
| JPS6141003Y2 (en) | ||
| JP5020702B2 (en) | Liquid pumping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070918 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091022 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091110 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100316 |