JPH1163391A - Liquid force-feeder - Google Patents
Liquid force-feederInfo
- Publication number
- JPH1163391A JPH1163391A JP10048698A JP4869898A JPH1163391A JP H1163391 A JPH1163391 A JP H1163391A JP 10048698 A JP10048698 A JP 10048698A JP 4869898 A JP4869898 A JP 4869898A JP H1163391 A JPH1163391 A JP H1163391A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- float
- shaft
- valve
- snap mechanism
- 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
Landscapes
- Float Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水や燃料等の液体
を圧送する液体圧送装置に関するものである。本発明の
液体圧送装置は、蒸気配管系で発生した復水を一旦集
め、この復水をボイラ―や廃熱利用装置に送る装置とし
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 apparatus for pumping a liquid such as water or fuel. The liquid pressure feeding device of the present invention is particularly suitable as a device for once collecting condensed water generated in a steam piping system and sending the condensed water to a boiler or a waste heat utilization device.
【０００２】[0002]
【従来の技術】蒸気配管系で凝縮して発生した復水は、
まだ相当の熱量を有していることが多く、そのためエネ
ルギ―の有効活用のため、液体圧送装置を用いて復水を
回収し、この復水をボイラ―や廃熱利用装置に送って廃
熱を有効利用する復水回収システムが広く普及してい
る。2. Description of the Related Art Condensate generated by condensation in a steam piping system is:
It often still has a considerable amount of heat, so condensed water is collected using a liquid pumping device for effective use of energy, and this condensed water is sent to a boiler or waste heat utilization device to waste heat. Condensate recovery systems that make effective use of water are widely used.
【０００３】復水回収システムに利用される液体圧送装
置は、復水を一旦密閉容器内に回収し、更に切替え弁を
切り換えて密閉容器内に蒸気等の高圧の作動流体を導入
し、この作動流体の圧力によって密閉容器内の復水を強
制的に排出するものである。そのため液体圧送装置を高
効率で稼働させるためには、密閉容器内にできるだけ多
量の復水を溜め、切替え弁を確実に切り換える必要があ
る。[0003] A liquid pressure feeding device used in a condensate recovery system collects condensed water in a closed container, and switches a switching valve to introduce a high-pressure working fluid such as steam into the closed container. The condensate in the closed vessel is forcibly discharged by the pressure of the fluid. Therefore, in order to operate the liquid pumping device with high efficiency, it is necessary to store as much condensed water as possible in a closed vessel and to switch the switching valve reliably.
【０００４】そこで液体圧送装置では、スナップ機構が
採用され、切替え弁の切り換えを確実にすることが行な
われてきた。以下従来技術の液体圧送装置について説明
する。図５は従来技術の液体圧送装置の一部断面斜視図
である。図５において、液体圧送装置１００は、密閉容
器１０１内にフロ―ト１２０、切替え弁１３０、スナッ
プ機構１４０等が内蔵されたものである。[0004] Therefore, in the liquid pressure feeding device, a snap mechanism has been adopted to ensure that the switching valve is switched. Hereinafter, a conventional liquid pumping apparatus will be described. FIG. 5 is a partial cross-sectional perspective view of a conventional liquid pumping apparatus. In FIG. 5, the liquid pumping apparatus 100 has a float 120, a switching valve 130, a snap mechanism 140, and the like built in a closed container 101.
【０００５】密閉容器１０１は、底近くに圧送液体流入
口１０２と圧送液体排出口１０３が設けられ、それぞれ
に逆止弁１０５，１０６が取り付けられている。逆止弁
１０５は密閉容器１０１への復水の流入を許す向きに取
り付けられ、逆止弁１０６は、密閉容器１０１から外部
への復水の圧送を許す向きに取り付けられている。[0005] The closed container 101 is provided with a pressure-feeding liquid inlet 102 and a pressure-feeding liquid outlet 103 near the bottom, and has check valves 105 and 106 respectively attached thereto. The check valve 105 is mounted in a direction that allows the condensate to flow into the closed vessel 101, and the check valve 106 is mounted in a direction that allows the condensate to be pumped from the closed vessel 101 to the outside.
【０００６】また密閉容器１０１の頂部には作動流体導
入口１０８と作動流体排出口１０９が設けられ、給気弁
１１０と排気弁１１１からなる切替え弁１３０が取り付
けられている。給気弁１１０と排気弁１１１はいずれも
昇降棒１１２，１１３を上下移動することによって弁の
開閉を行うものであり、給気弁１１０は昇降棒１１２を
上げた時に開となり、排気弁１１１は昇降棒１１３を上
げた時に閉となる。そして昇降棒１１２，１１３は連設
板１１５によって並列に結合され、連設板１１５を上下
することにより給気弁１１０と排気弁１１１は同時に開
閉される。[0006] A working fluid inlet 108 and a working fluid outlet 109 are provided at the top of the closed vessel 101, and a switching valve 130 including an air supply valve 110 and an exhaust valve 111 is attached. Each of the supply valve 110 and the exhaust valve 111 opens and closes the valve by moving the lifting rods 112 and 113 up and down. The supply valve 110 is opened when the lifting rod 112 is raised, and the exhaust valve 111 is opened. It is closed when the lifting bar 113 is raised. The lifting rods 112 and 113 are connected in parallel by a connecting plate 115, and the supply valve 110 and the exhaust valve 111 are simultaneously opened and closed by moving the connecting plate 115 up and down.
【０００７】従来技術の液体圧送装置１００は、圧送液
体流入口１０２が逆止弁１０５を介して蒸気の負荷に接
続され、圧送液体排出口１０３が逆止弁１０６を介して
ボイラ―や廃熱利用装置に接続される。そして作動流体
導入口１０８は高圧流体源に接続される。液体圧送装置
１００では、密閉容器１０１内に復水が無い場合は、フ
ロ―ト１２０は下の位置にあり、連設板１１５は下がっ
ている。そのため、給気弁１１０は作動流体導入口１０
８を塞ぎ、排気弁１１１は作動流体排出口１０９を開放
している。In the prior art liquid pumping apparatus 100, a pumping liquid inlet 102 is connected to a steam load via a check valve 105, and a pumping liquid outlet 103 is connected via a check valve 106 to a boiler or waste heat. Connected to the user device. The working fluid inlet 108 is connected to a high-pressure fluid source. In the liquid pumping apparatus 100, when there is no condensate in the closed container 101, the float 120 is located at the lower position, and the continuous plate 115 is lowered. Therefore, the air supply valve 110 is connected to the working fluid inlet 10.
8, the exhaust valve 111 opens the working fluid outlet 109.
【０００８】液体圧送装置１００が接続される蒸気の負
荷内で復水が発生すると、復水は逆止弁１０５から密閉
容器１０１内に流れ込んで溜まる。そして、復水の量が
増加するのに従って、フロ―ト１２０が上昇し、これに
連れてア―ム１１８の一端が上昇する。そしてア―ム１
１８が一定の位置を越えると、スナップ機構１４０が反
転し、弁軸操作棒１２１が上に移動し、連設板１１５が
持ち上げられる。When condensed water is generated within the steam load to which the liquid pumping device 100 is connected, the condensed water flows from the check valve 105 into the closed vessel 101 and accumulates. Then, as the amount of condensed water increases, the float 120 rises, and accordingly, one end of the arm 118 rises. And arm 1
When 18 exceeds a certain position, the snap mechanism 140 is reversed, the valve stem operating rod 121 moves upward, and the connecting plate 115 is lifted.
【０００９】すると給気弁１１０は作動流体導入口１０
８を開放する。一方この時排気弁１１１は作動流体排出
口１０９を閉じるので、密閉容器１０１内の圧力が上昇
し、当該圧力に押されて圧送液体排出口１０３から復水
が圧送される。Then, the supply valve 110 is connected to the working fluid inlet 10.
Release 8. On the other hand, at this time, since the exhaust valve 111 closes the working fluid discharge port 109, the pressure in the closed vessel 101 rises, and the condensed water is pumped from the pumping liquid discharge port 103 by the pressure.
【００１０】[0010]
【発明が解決しようとする課題】従来技術の液体圧送装
置１００は、簡単な構成で比較的効率良く液体の圧送を
行うことができるものであるが、スナップ機構が密閉容
器内に配されているために、流体に混在しているゴミや
スケ―ル等の異物を噛み込みやすく、比較的短期間に動
作の円滑性を欠くと言う問題点があった。The prior art liquid pumping apparatus 100 is capable of relatively efficiently pumping a liquid with a simple structure, but has a snap mechanism disposed in a closed container. Therefore, there is a problem that foreign matter such as dust and scale mixed in the fluid is easily bitten, and the operation lacks smoothness in a relatively short time.
【００１１】本発明は、従来技術の上記した問題点に注
目し、動作が円滑である液体圧送装置を提供することを
目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid pumping device which operates smoothly, noting the above-mentioned problems of the prior art.
【００１２】[0012]
【課題を解決するための手段】本発明の特徴は、作動流
体導入口と作動流体排出口と圧送液体流入口及び圧送液
体排出口を有する密閉容器内にフロ―トが内蔵され、フ
ロ―トの昇降に応じてスナップ機構を動作させて作動流
体導入口と作動流体排出口の開閉を切り換えることによ
り、密閉容器内に溜まった液体を圧送液体排出口から圧
送する液体圧送装置において、フロ―トの昇降をスナッ
プ機構に伝達する動力伝達軸を密閉容器外に導出してス
ナップ機構を密閉容器外に配した液体圧送装置にある。SUMMARY OF THE INVENTION A feature of the present invention is that a float is built in a closed container having a working fluid inlet, a working fluid outlet, a pumping liquid inlet, and a pumping liquid outlet, In a liquid pumping device that pumps liquid accumulated in a sealed container from a pumping liquid outlet by operating a snap mechanism in accordance with the rise and fall of the liquid and switching between opening and closing of a working fluid inlet and a working fluid outlet. There is a liquid pressure feeding device in which a power transmission shaft for transmitting the lifting / lowering to the snap mechanism is led out of the closed container and the snap mechanism is disposed outside the closed container.
【００１３】[0013]
【発明の実施の形態】本発明の液体圧送装置は、従来公
知のそれと同様にフロ―トの昇降に応じてスナップ機構
が動作し、切替え弁が切り換えられて密閉容器内に溜ま
った液体を圧送する。そして、本発明の液体圧送装置
は、フロ―トの昇降をスナップ機構に伝達する動力伝達
軸を密閉容器外に導出してスナップ機構を密閉容器外に
配したものである。そのため、密閉容器外に位置するス
ナップ機構は、異物の影響を受けにくくなり円滑な動作
を行うことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a liquid pumping apparatus according to the present invention, a snap mechanism operates in accordance with the rise and fall of a float, and a switching valve is switched to pump a liquid collected in a closed container in the same manner as in the prior art. I do. In the liquid pressure feeding device of the present invention, the power transmission shaft for transmitting the elevation of the float to the snap mechanism is led out of the closed container, and the snap mechanism is disposed outside the closed container. Therefore, the snap mechanism located outside the closed container is less affected by foreign matter, and can perform a smooth operation.
【００１４】[0014]
【実施例】以下に本発明の具体的実施例について説明す
る。図１は、本発明の具体的実施例の液体圧送装置の断
面図である。図２は、図１のＡ−Ａ拡大断面図である。
図３は、スナップ機構の拡大断面図である。図１におい
て、本実施例の液体圧送装置１は、密閉容器２内にフロ
―ト３と切替え弁４が配され、密閉容器２外にスナップ
機構５が配されたものである。EXAMPLES Specific examples of the present invention will be described below. FIG. 1 is a sectional view of a liquid pumping apparatus according to a specific embodiment of the present invention. FIG. 2 is an enlarged sectional view taken along the line AA of FIG.
FIG. 3 is an enlarged sectional view of the snap mechanism. In FIG. 1, a liquid pressure feeding device 1 of this embodiment has a float 3 and a switching valve 4 disposed inside a closed container 2 and a snap mechanism 5 disposed outside the closed container 2.
【００１５】順次説明すると、密閉容器２は、本体部７
と蓋部８が図示しないネジによって結合され、内部に液
体溜空間１０が形成されたものであり、液体溜空間１０
にフロ―ト３と切替え弁４が配されている。蓋部８にキ
ャップ６が図示しないネジによって結合され、蓋部８と
キャップ６の間の外部空間９にスナップ機構５が配され
ている。蓋部８とキャップ６の間には気密保持のために
ガスケット１２が介在されている。蓋部８には、４つの
開口、具体的には作動流体導入口１１，作動流体排出口
１３，圧送液体流入口１６，圧送液体排出口１７が設け
られている。To be described sequentially, the closed container 2 includes a main body 7
And the lid portion 8 are connected by a screw (not shown) to form a liquid storage space 10 therein.
Float 3 and switching valve 4 are arranged. A cap 6 is connected to the lid 8 by a screw (not shown), and a snap mechanism 5 is disposed in an external space 9 between the lid 8 and the cap 6. A gasket 12 is interposed between the lid 8 and the cap 6 to maintain airtightness. The lid 8 is provided with four openings, specifically, a working fluid inlet 11, a working fluid outlet 13, a pumping liquid inlet 16, and a pumping liquid outlet 17.
【００１６】図２に拡大して示すように、作動流体導入
口１１の内側に給気弁２０が取り付けられ、作動流体排
出口１３の内側に排気弁２１が取り付けられている。給
気弁２０は、弁ケ―ス２２と弁体２３及び昇降棒２４に
よって構成される。弁ケ―ス２２は、軸方向に貫通孔を
有し、貫通孔の上端面は弁座２５として機能する。弁ケ
―ス２２の中間部には、前記した貫通孔と外部とを連通
する４つの開口２６が設けられている。2, an air supply valve 20 is mounted inside the working fluid inlet 11 and an exhaust valve 21 is mounted inside the working fluid outlet 13. As shown in FIG. The air supply valve 20 includes a valve case 22, a valve body 23, and an elevating rod 24. The valve case 22 has a through hole in the axial direction, and the upper end surface of the through hole functions as a valve seat 25. In the middle part of the valve case 22, there are provided four openings 26 for communicating the aforementioned through holes with the outside.
【００１７】給気弁２０の弁ケ―ス２２の先端は、作動
流体導入口１１の中にねじ込まれている。弁体２３は、
球状で作動流体導入口１１側にあり、昇降棒２４の上端
が当接することにより開閉される。昇降棒２４は、弁ケ
―ス２２の貫通孔を通って密閉容器２側に抜け、下端に
形成した溝に連設板２７が連結されている。連設板２７
は、動力伝達軸２８に連結されている。The distal end of the valve case 22 of the air supply valve 20 is screwed into the working fluid inlet 11. The valve element 23 is
It is spherical and is on the working fluid inlet 11 side, and is opened and closed by the upper end of the lifting rod 24 abutting. The lifting rod 24 passes through the through hole of the valve case 22 to the closed container 2 side, and a continuous plate 27 is connected to a groove formed at the lower end. Continuous plate 27
Are connected to a power transmission shaft 28.
【００１８】排気弁２１は、弁ケ―ス２９と弁体３０と
昇降棒３１によって構成される。弁ケ―ス２９は、軸方
向に貫通孔を有し、該貫通孔の内部に弁座３２があり、
弁座３２の下から昇降棒３１の上端に保持固定された弁
体３０が当接して開閉を行うものである。昇降棒３１の
下端には、溝が形成され連設板２７が連結されている。
連設板２７の下面と昇降棒３１の溝の下壁との間には隙
間３３が形成されている。給気弁２０と排気弁２１とで
切替え弁４が構成され、給気弁２０が開くと排気弁２１
は閉じ、給気弁２０が閉じると排気弁２１は開く。The exhaust valve 21 includes a valve case 29, a valve body 30, and a lifting rod 31. The valve case 29 has a through hole in the axial direction, and a valve seat 32 is provided inside the through hole.
The valve body 30 held and fixed from below the valve seat 32 to the upper end of the elevating rod 31 contacts and opens and closes. A groove is formed at the lower end of the elevating rod 31 and the connecting plate 27 is connected thereto.
A gap 33 is formed between the lower surface of the continuous plate 27 and the lower wall of the groove of the lifting rod 31. The switching valve 4 is constituted by the air supply valve 20 and the exhaust valve 21, and when the air supply valve 20 is opened, the exhaust valve 21 is opened.
Is closed, and when the air supply valve 20 is closed, the exhaust valve 21 is opened.
【００１９】圧送液体流入口１６は蓋部８のほぼ中央に
あり、圧送液体排出口１７は密閉容器２の下部に相当す
る位置に設けられている。The pumping liquid inlet 16 is located substantially at the center of the lid 8, and the pumping liquid outlet 17 is provided at a position corresponding to the lower part of the closed container 2.
【００２０】フロ―ト３は、フロ―トア―ム３４と揺動
軸３５を介してブラケット３６によって支持されてい
る。ブラケット３６は、図示しないネジによって密閉容
器２の蓋部８に一体的に取り付けられている。ブラケッ
ト３６は、上から見ると、「Ｌ」字状をした２枚の板よ
りなり、揺動軸３５が掛け渡されて連結されたものであ
る。フロ―トア―ム３４は、板を「Ｕ」字状に曲げ加工
して作られたもので、２枚の板が平行に対向し、左端に
フロ―ト３が結合されている。フロ―トア―ム３４に
は、長孔３７が設けられ、長孔３７内に軸３８が掛け渡
されている。そして軸３８に動力伝達軸２８の下端が連
結されている。フロ―ト３は、揺動軸３５を中心として
上下に揺動し、所定量揺動した後に動力伝達軸２８が上
下に変位する。The float 3 is supported by a bracket 36 via a float arm 34 and a swing shaft 35. The bracket 36 is integrally attached to the lid 8 of the closed container 2 by screws (not shown). The bracket 36 is made of two “L” shaped plates when viewed from above, and is connected with a swinging shaft 35 being stretched over. The float arm 34 is formed by bending a plate into a “U” shape. Two plates are opposed in parallel, and a float 3 is joined to the left end. A long hole 37 is provided in the float arm 34, and a shaft 38 is extended in the long hole 37. The lower end of the power transmission shaft 28 is connected to the shaft 38. The float 3 swings up and down about the swinging shaft 35, and after swinging a predetermined amount, the power transmission shaft 28 is displaced up and down.
【００２１】動力伝達軸２８の上端は、密閉容器２の蓋
部８から上方に突出し、蓋部８とキャップ６の間の外部
空間９に位置している。動力伝達軸２８の上部に摺動部
材５１がねじ結合されている。摺動部材５１は、円筒状
で外周に上下２つの環状の窪み部５２，５３が形成され
たものである。摺動部材５１の外周には、キャップ６の
内壁の環状段部とガスケット１２の間に固定された保持
部材５４が配置されている。保持部材５４は、等間隔に
形成された４つの開口を有し、それぞれの開口に硬球５
５が配置されている。硬球５５は、断面「Ｃ」字状の輪
ばね５６，５７で内方に付勢され、一部が窪み部５２に
嵌まり込んでいる。ガスケット１２の内周と摺動部材５
１の外周は、流体が殆ど出入しないように、微少な隙間
に形成されている。上記の窪み部５２，５３と硬球５５
と輪ばね５６，５７によってスナップ機構５が構成され
る。そしてスナップ機構５を構成する部材には潤滑剤と
してのグリスを塗布して摺動抵抗を軽減させている。The upper end of the power transmission shaft 28 projects upward from the lid 8 of the closed casing 2 and is located in the external space 9 between the lid 8 and the cap 6. A sliding member 51 is screwed to the upper part of the power transmission shaft 28. The sliding member 51 is a cylindrical member having two upper and lower annular recesses 52 and 53 formed on the outer periphery. A holding member 54 fixed between the annular step portion of the inner wall of the cap 6 and the gasket 12 is arranged on the outer periphery of the sliding member 51. The holding member 54 has four openings formed at equal intervals, and each opening has a hard sphere 5.
5 are arranged. The hard sphere 55 is urged inward by ring springs 56 and 57 having a “C” -shaped cross section, and a part of the hard sphere 55 is fitted into the recess 52. Inner circumference of gasket 12 and sliding member 5
The outer periphery of 1 is formed in a minute gap so that almost no fluid flows in and out. The depressions 52 and 53 and the hard ball 55
And the ring springs 56 and 57 constitute the snap mechanism 5. Grease as a lubricant is applied to the members constituting the snap mechanism 5 to reduce sliding resistance.
【００２２】次に本実施例の液体圧送装置１の作用につ
いて、作動流体として蒸気を用いた場合の一連の動作手
順を追うことによって説明する。まず液体圧送装置１の
外部配管は、作動流体導入口１１が高圧の蒸気源に接続
され、作動流体排出口１３は、蒸気循環配管に接続され
る。また圧送液体流入口１６は、外部から液体溜空間１
０に向かって開く逆止弁（図示せず）を介して蒸気使用
装置等の負荷に接続される。一方圧送液体排出口１７
は、液体溜空間１０から外部に向かって開く逆止弁（図
示せず）を介してボイラ―等の液体圧送先へ接続され
る。Next, the operation of the liquid pumping apparatus 1 of the present embodiment will be described by following a series of operation procedures when steam is used as a working fluid. First, the working fluid introduction port 11 is connected to a high-pressure steam source, and the working fluid discharge port 13 is connected to a steam circulation pipe. Further, the pressure-feeding liquid inlet 16 is connected to the liquid storage space 1 from outside.
It is connected to a load such as a steam-using device via a check valve (not shown) that opens toward zero. On the other hand, the pumping liquid discharge port 17
Is connected to a liquid pressure destination such as a boiler via a check valve (not shown) which opens outward from the liquid storage space 10.
【００２３】本実施例の液体圧送装置１の液体溜空間１
０内に復水が無い場合は、図１に示す様にフロ―ト３は
底部に位置する。このとき、切替え弁４における給気弁
２０が閉じられ、排気弁２１が開かれている。そして蒸
気使用装置等の負荷内で復水が発生すると、復水は圧送
液体流入口１６から液体圧送装置１に流下して、液体溜
空間１０内に溜まる。The liquid storage space 1 of the liquid pumping device 1 of the present embodiment.
If there is no condensate within 0, the float 3 is located at the bottom as shown in FIG. At this time, the air supply valve 20 of the switching valve 4 is closed, and the exhaust valve 21 is open. Then, when condensed water is generated in a load such as a steam-using device, the condensed water flows down from the pumping liquid inlet 16 to the liquid pumping device 1 and accumulates in the liquid storage space 10.
【００２４】液体溜空間１０内に溜まった復水によって
フロ―ト３が浮上すると、フロ―トア―ム３４が揺動軸
３５を中心に時計回り方向に回転し、長孔３７の下端が
軸３８に当接した後、動力伝達軸２８が上方に持ち上げ
られる。この動力伝達軸２８に連動して摺動部材５１が
上動し、硬球５５が窪み部５２から抜け出し、輪ばね５
６，５７は押し拡げられる。そしてフロ―ト３が更に上
昇して、硬球５５が窪み部５３内に入りかけると、輪ば
ね５６，５７は急激に変形を回復し、硬球５５を窪み部
５３に急激に押し込んで動力伝達軸２８を上側にスナッ
プ移動させる。その結果、給気弁２０が開口されると共
に排気弁２１が閉じられる。When the float 3 rises due to the condensed water collected in the liquid storage space 10, the float arm 34 rotates clockwise about the swing shaft 35, and the lower end of the long hole 37 is pivoted. After contacting the power transmission shaft 38, the power transmission shaft 28 is lifted upward. In conjunction with the power transmission shaft 28, the sliding member 51 moves upward, and the hard ball 55 comes out of the recess 52, and the ring spring 5
6, 57 are pushed out. When the float 3 further rises and the hard sphere 55 enters the recess 53, the ring springs 56 and 57 rapidly recover from the deformation, and the hard sphere 55 is rapidly pushed into the recess 53 and the power transmission shaft is pressed. 28 is snapped upward. As a result, the air supply valve 20 is opened and the exhaust valve 21 is closed.
【００２５】作動流体導入口１１が開放されると、密閉
容器２内に高圧蒸気が導入され、内部の圧力が上昇し、
液体溜空間１０に溜まった復水は、蒸気圧に押されて圧
送液体排出口１７から図示しない逆止弁を介して外部の
ボイラ―や廃熱利用装置へ排出される。When the working fluid inlet 11 is opened, high-pressure steam is introduced into the closed vessel 2 and the internal pressure rises.
The condensed water collected in the liquid storage space 10 is pushed by the vapor pressure and discharged from the pumping liquid discharge port 17 to an external boiler or waste heat utilization device via a check valve (not shown).
【００２６】復水の排出によって復水溜空間１０内の水
位が低下すると、フロ―ト３が降下して、フロ―トア―
ム３４が揺動軸３５を中心に反時計回り方向に回転し、
長孔３７の上端が軸３８に当接した後、動力伝達軸２８
が下方に押し下げられる。この動力伝達軸２８に連動し
て摺動部材５１が下動し、硬球５５が窪み部５３から抜
け出し、輪ばね５６，５７は押し拡げられる。そしてフ
ロ―ト３が更に降下して、硬球５５が窪み部５２内に入
りかけると、輪ばね５６，５７は急激に変形を回復し、
硬球５５を窪み部５２に急激に押し込んで動力伝達軸２
８を下側にスナップ移動させる。また、このスナップ移
動の過程で、連設板２７の下面が排気弁２１の昇降棒３
１の溝の下壁に当接する。その結果、給気弁２０が閉じ
らると共に排気弁２１が開口される。When the water level in the condensate storage space 10 decreases due to the discharge of the condensate water, the float 3 descends,
The arm 34 rotates counterclockwise about the pivot shaft 35,
After the upper end of the long hole 37 contacts the shaft 38, the power transmission shaft 28
Is pushed down. The sliding member 51 moves downward in conjunction with the power transmission shaft 28, the hard ball 55 comes out of the concave portion 53, and the ring springs 56, 57 are expanded. When the float 3 further descends and the hard ball 55 enters the recess 52, the ring springs 56 and 57 rapidly recover from the deformation.
The hard ball 55 is suddenly pushed into the recess 52 so that the power transmission shaft 2
8 is snapped down. In the process of the snap movement, the lower surface of the connecting plate 27 is
Abuts the lower wall of groove 1. As a result, the air supply valve 20 is closed and the exhaust valve 21 is opened.
【００２７】次に本発明の他の具体的実施例の液体圧送
装置について説明する。図４は、本発明の他の具体的実
施例の液体圧送装置の断面図である。尚、以下に述べる
実施例では、先の実施例と同一の作用を行う部材につい
ては同一の番号を付し、重複説明を避けることとする。
本実施例のスナップ機構５は、圧縮状態のコイルばね６
１、ばね受け部材６２，６３、第１ア―ム６４及び第２
ア―ム６５からなり、蓋部８とキャップ６の間の外部空
間９に配されている。そしてスナップ機構５を構成する
部材には潤滑剤としてのグリスを塗布して摺動抵抗を軽
減させている。Next, a liquid pumping apparatus according to another embodiment of the present invention will be described. FIG. 4 is a sectional view of a liquid pumping apparatus according to another specific embodiment of the present invention. In the embodiments described below, members performing the same operations as those in the previous embodiment are denoted by the same reference numerals, and redundant description will be avoided.
The snap mechanism 5 of the present embodiment includes a coil spring 6 in a compressed state.
1, spring receiving members 62 and 63, first arm 64 and second
An arm 65 is provided in the outer space 9 between the lid 8 and the cap 6. Grease as a lubricant is applied to the members constituting the snap mechanism 5 to reduce sliding resistance.
【００２８】密閉容器２の蓋部８から上方に突出した動
力伝達軸２８の上端に軸６６が取り付けられ、軸６６に
ばね受け部材６２が回転可能に支持されている。また軸
６６には、平行に対向した２枚の板よりなる第１ア―ム
６４の左端部が回転可能に支持されている。第１ア―ム
６４の右端部は、キャップ６に一体的に取り付けられた
ブラケット６７に支持された軸６８に回転可能に支持さ
れている。また軸６７には、平行に対向した２枚の板よ
りなる第２ア―ム６５の中間部が回転可能に支持されて
いる。第２ア―ム６５の左端部には、軸６９が掛け渡さ
れ、軸６９にばね受け部材６３が回転可能に支持されて
いる。そして両ばね受け部材６２，６３の間に圧縮状態
のコイルバネ６１が取り付けられている。また第２ア―
ム６５の右端部に軸７０が掛け渡され、軸７０に弁軸操
作棒７１の上端が連結されている。弁軸操作棒７１は、
蓋部８を貫通して密閉容器２側に抜け、下端に連設板２
７が連結されている。そして連設板２７に切替え弁４が
連結されている。動力伝達軸２８及び弁軸操作棒７１の
外周と蓋部８との間は、流体が殆ど出入しないように、
微少な隙間に形成されている。A shaft 66 is attached to the upper end of the power transmission shaft 28 projecting upward from the lid 8 of the closed casing 2, and the spring receiving member 62 is rotatably supported on the shaft 66. A left end portion of a first arm 64 composed of two plates facing in parallel is rotatably supported on the shaft 66. The right end of the first arm 64 is rotatably supported by a shaft 68 supported by a bracket 67 integrally attached to the cap 6. The shaft 67 rotatably supports an intermediate portion of a second arm 65 composed of two plates facing in parallel. A shaft 69 is wound around the left end of the second arm 65, and a spring receiving member 63 is rotatably supported on the shaft 69. A coil spring 61 in a compressed state is mounted between the spring receiving members 62 and 63. The second arc
A shaft 70 is wound around the right end of the valve 65, and the upper end of the valve shaft operating rod 71 is connected to the shaft 70. The valve stem operating rod 71 is
It penetrates through the lid 8 and comes out to the closed container 2 side, and the lower end of the
7 are connected. The switching valve 4 is connected to the connecting plate 27. Between the outer circumference of the power transmission shaft 28 and the valve shaft operating rod 71 and the lid 8, fluid hardly enters and exits.
It is formed in a minute gap.
【００２９】フロ―ト３が浮上して動力伝達軸２８が持
ち上げられると、第１ア―ム６４が軸６８を中心に時計
回り方向に回転し、コイルバネ６１との連結部である軸
６６が軸６８と軸６９を結ぶ線に近付き、コイルバネ５
４は圧縮変形する。そしてフロ―ト３が更に上昇し、軸
６６が軸６８と軸６９を結ぶ線を越えると、コイルバネ
５４は急激に変形を回復し、第２ア―ム６５が反時計回
り方向に回転して軸７０が上方に急激に移動する。その
結果、軸６０に連結された弁軸操作棒７１が上側にスナ
ップ移動し、連設板２７を介して切替え弁４の開閉が切
り換えられる。When the float 3 rises and the power transmission shaft 28 is lifted, the first arm 64 rotates clockwise about the shaft 68, and the shaft 66, which is a connection portion with the coil spring 61, is turned. When approaching the line connecting the shaft 68 and the shaft 69, the coil spring 5
4 undergoes compression deformation. When the float 3 further rises and the shaft 66 crosses the line connecting the shaft 68 and the shaft 69, the coil spring 54 rapidly recovers from the deformation, and the second arm 65 rotates counterclockwise. The shaft 70 moves rapidly upward. As a result, the valve stem operating rod 71 connected to the shaft 60 snaps upward, and the switching valve 4 is switched between open and closed via the connecting plate 27.
【００３０】フロ―ト３が降下して動力伝達軸２８が押
し下げられると、第１ア―ム６４が軸６８を中心に反時
計回り方向に回転し、コイルバネ６１との連結部である
軸６６が軸６８と軸６９を結ぶ線に近付き、コイルバネ
５４は圧縮変形する。そしてフロ―ト３が更に降下し、
軸６６が軸６８と軸６９を結ぶ線を越えると、コイルバ
ネ５４は急激に変形を回復し、第２ア―ム６５が時計回
り方向に回転して軸７０が下方に急激に移動する。その
結果、軸６０に連結された弁軸操作棒７１が下側にスナ
ップ移動し、連設板２７を介して切替え弁４の開閉が切
り換えられる。When the float 3 is lowered and the power transmission shaft 28 is depressed, the first arm 64 rotates counterclockwise about the shaft 68, and the shaft 66, which is a connecting portion with the coil spring 61, is rotated. Approaches the line connecting the shaft 68 and the shaft 69, and the coil spring 54 is compressed and deformed. Float 3 descends further,
When the shaft 66 crosses the line connecting the shaft 68 and the shaft 69, the coil spring 54 rapidly recovers from the deformation, the second arm 65 rotates clockwise, and the shaft 70 moves rapidly downward. As a result, the valve shaft operating rod 71 connected to the shaft 60 snaps downward, and the switching valve 4 is opened and closed via the connecting plate 27.
【００３１】[0031]
【発明の効果】本発明の液体圧送装置では、フロ―トの
昇降をスナップ機構に伝達する動力伝達軸を密閉容器外
に導出してスナップ機構を密閉容器外に配している。そ
のため、密閉容器外に位置するスナップ機構が異物の影
響を受けにくく、動作が円滑で確実に液体を圧送できる
と言う優れた効果がある。According to the liquid pressure feeding device of the present invention, the power transmission shaft for transmitting the elevation of the float to the snap mechanism is led out of the closed container, and the snap mechanism is disposed outside the closed container. Therefore, there is an excellent effect that the snap mechanism located outside the closed container is hardly affected by foreign matter, and the operation is smooth and the liquid can be reliably pumped.
【図１】本発明の具体的実施例の液体圧送装置の断面図
である。FIG. 1 is a sectional view of a liquid pumping apparatus according to a specific embodiment of the present invention.
【図２】図１のＡ−Ａ拡大断面図である。FIG. 2 is an enlarged sectional view taken along line AA of FIG.
【図３】図１のスナップ機構の拡大断面図である。FIG. 3 is an enlarged sectional view of the snap mechanism of FIG. 1;
【図４】本発明の他の具体的実施例の液体圧送装置の断
面図である。FIG. 4 is a sectional view of a liquid pumping apparatus according to another specific embodiment of the present invention.
【図５】従来技術の液体圧送装置の一部断面斜視図であ
る。FIG. 5 is a partial cross-sectional perspective view of a conventional liquid pumping device.
１ 液体圧送装置 ２ 密閉容器 ３ フロ―ト ４ 切替え弁 ５ スナップ機構 ６ キャップ ９ 外部空間 １１ 作動流体導入口 １３ 作動流体排出口 １６ 圧送液体流入口 １７ 圧送液体排出口 ２０ 給気弁 ２１ 排気弁 ２８ 動力伝達軸 DESCRIPTION OF SYMBOLS 1 Liquid pumping apparatus 2 Closed container 3 Float 4 Switching valve 5 Snap mechanism 6 Cap 9 External space 11 Working fluid introduction port 13 Working fluid discharge port 16 Pumping liquid inflow port 17 Pumping liquid discharge port 20 Supply valve 21 Exhaust valve 28 Power transmission shaft
Claims (1)
液体流入口及び圧送液体排出口を有する密閉容器内にフ
ロ―トが内蔵され、フロ―トの昇降に応じてスナップ機
構を動作させて作動流体導入口と作動流体排出口の開閉
を切り換えることにより、密閉容器内に溜まった液体を
圧送液体排出口から圧送する液体圧送装置において、フ
ロ―トの昇降をスナップ機構に伝達する動力伝達軸を密
閉容器外に導出してスナップ機構を密閉容器外に配した
ことを特徴とする液体圧送装置。A float is incorporated in a closed container having a working fluid inlet, a working fluid outlet, a pumping liquid inlet, and a pumping liquid outlet, and a snap mechanism is operated according to the rise and fall of the float. In a liquid pumping device that pumps the liquid stored in a sealed container from the pumping liquid outlet by switching the opening and closing of the working fluid inlet and the working fluid outlet, the power transmission that transmits the elevation of the float to the snap mechanism A liquid pumping device characterized in that a shaft is led out of a sealed container and a snap mechanism is arranged outside the sealed container.
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04869898A JP3983370B2 (en) | 1997-06-13 | 1998-02-13 | Liquid pumping device |
| AU69856/98A AU709740B2 (en) | 1997-06-13 | 1998-06-02 | Liquid forced-feed apparatus |
| NO19982644A NO324477B1 (en) | 1997-06-13 | 1998-06-09 | Apparatus for feeding a liquid under pressure |
| US09/093,895 US6244829B1 (en) | 1997-06-13 | 1998-06-09 | Liquid forced-feed apparatus |
| EP19980201942 EP0884520B1 (en) | 1997-06-13 | 1998-06-10 | Liquid forced-feed apparatus |
| DE1998631191 DE69831191T2 (en) | 1997-06-13 | 1998-06-10 | Forced feeding device for liquids |
| CA002240364A CA2240364C (en) | 1997-06-13 | 1998-06-11 | Liquid forced-feed apparatus |
| TW087109364A TW392040B (en) | 1997-06-13 | 1998-06-12 | Liquid forced-feed apparatus |
| BR9803707A BR9803707A (en) | 1997-06-13 | 1998-06-12 | Forced liquid feeding device |
| CNB981024335A CN1143976C (en) | 1997-06-13 | 1998-06-12 | Liquid forced-feed apparatus |
| KR1019980021874A KR100331353B1 (en) | 1997-06-13 | 1998-06-12 | Liquid forced-feed apparatus |
| HK99102461A HK1017410A1 (en) | 1997-06-13 | 1999-06-03 | Hydraulic pressure transfer device |
| AU36780/99A AU3678099A (en) | 1997-06-13 | 1999-06-25 | Liquid forced-feed apparatus |
| AU36833/99A AU3683399A (en) | 1997-06-13 | 1999-06-28 | Liquid forced-feed apparatus |
| KR1020000036324A KR100310965B1 (en) | 1997-06-13 | 2000-06-29 | Snap mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17280997 | 1997-06-13 | ||
| JP9-172809 | 1997-06-13 | ||
| JP04869898A JP3983370B2 (en) | 1997-06-13 | 1998-02-13 | Liquid pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1163391A true JPH1163391A (en) | 1999-03-05 |
| JP3983370B2 JP3983370B2 (en) | 2007-09-26 |
Family
ID=26389000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04869898A Expired - Lifetime JP3983370B2 (en) | 1997-06-13 | 1998-02-13 | Liquid pumping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3983370B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181231A (en) * | 2000-12-15 | 2002-06-26 | Tlv Co Ltd | Force feed device for liquid |
| JP2016223476A (en) * | 2015-05-27 | 2016-12-28 | 株式会社テイエルブイ | Liquid forcibly feeding device |
-
1998
- 1998-02-13 JP JP04869898A patent/JP3983370B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181231A (en) * | 2000-12-15 | 2002-06-26 | Tlv Co Ltd | Force feed device for liquid |
| JP2016223476A (en) * | 2015-05-27 | 2016-12-28 | 株式会社テイエルブイ | Liquid forcibly feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3983370B2 (en) | 2007-09-26 |
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