JPH08145292A - Force feeding device for liquid - Google Patents

Force feeding device for liquid

Info

Publication number
JPH08145292A
JPH08145292A JP30687394A JP30687394A JPH08145292A JP H08145292 A JPH08145292 A JP H08145292A JP 30687394 A JP30687394 A JP 30687394A JP 30687394 A JP30687394 A JP 30687394A JP H08145292 A JPH08145292 A JP H08145292A
Authority
JP
Japan
Prior art keywords
shaft
float
arm
axis
valve
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
Application number
JP30687394A
Other languages
Japanese (ja)
Other versions
JP3170672B2 (en
Inventor
Hideaki Yumoto
湯本  秀昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TLV Co Ltd
Original Assignee
TLV Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TLV Co Ltd filed Critical TLV Co Ltd
Priority to JP30687394A priority Critical patent/JP3170672B2/en
Publication of JPH08145292A publication Critical patent/JPH08145292A/en
Application granted granted Critical
Publication of JP3170672B2 publication Critical patent/JP3170672B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16TSTEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/20Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
    • F16T1/22Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
    • F16T1/24Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type using levers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Float Valves (AREA)

Abstract

PURPOSE: To prevent a coil spring from being damaged which is used in a liquid force-feeding device wherein condensate generated in a steam piping system is once collected to be delivered, by providing the apring to be deformable in the expansion/contraction direction on an axis of a float arm when it is deformed interlinking with a float. CONSTITUTION: In a liquid force-feeding device wherein a float 3, a selector valve 4 and a snap mechanism 5 are incorporated in a closed vessel 2, the snap mechanism 5 is constituted to be provided with a float arm 51 and a sub-arm 52 which are rotatable around the first shaft 37 supported by the closed vessel 2. A second shaft 58 movable on an axis of the float arm 51 is provided at a point on the float arm 51 and apart from the shaft 37, and the third shaft 59 is provided at a point on the first sub-arm 52 and apart, from the shaft 37. These second and third shafts 58, 59 are connected to each other by the second sub-arm 53, which is energized to the right by a compression coil spring 54, and the selector valve 4 is connected to the third shaft 59 via a valve stem operating bar 28.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】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 device for pumping liquid such as water and fuel. The liquid pressure-feeding device of the present invention is particularly suitable as a device for once collecting the condensate generated in the steam piping system and sending the condensate to the boiler or the 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
It still has a considerable amount of heat, so for effective use of energy, condensed water is collected using a liquid pumping device, and this condensed water is sent to a boiler or waste heat utilization device to waste heat. Condensate recovery system that effectively uses water is 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。
A liquid pumping device used in a condensate recovery system temporarily recovers condensate in a closed container, switches a switching valve, and introduces a high-pressure working fluid such as steam into the closed container, and operates this operation. Condensate in the closed container 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 collect as much condensed water as possible in the closed container and reliably switch the switching valve.

【0004】そこで液体圧送装置では、一般にコイルバ
ネを利用した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。コイルバネを
利用したスナップ機構を内蔵する液体圧送装置には、例
えば米国特許5141405号に開示された構成があ
る。
Therefore, a liquid pumping device generally employs a snap mechanism utilizing a coil spring to ensure switching of the switching valve. A liquid pressure-feeding device incorporating a snap mechanism using a coil spring has a configuration disclosed in US Pat. No. 5,141,405, for example.

【0005】図6は従来技術の液体圧送装置のスナップ
機構の正面図である。前記した米国特許5141405
号に開示された液体圧送装置では、スナップ機構100
は、フロ―トア―ム101、副ア―ム102及び圧縮状
態のコイルバネ103によって構成される。そしてフロ
―トア―ム101は支持部材105に対してピン106
によって揺動可能に固定され、先端にはフロ―ト108
が取り付けられている。
FIG. 6 is a front view of a snap mechanism of a prior art liquid pumping device. US Pat. No. 5,141,405 mentioned above.
In the liquid pumping device disclosed in Japanese Patent No.
Is composed of a float arm 101, a sub arm 102, and a coil spring 103 in a compressed state. The float arm 101 is attached to the support member 105 by the pin 106.
It is swingably fixed by the
Is attached.

【0006】副ア―ム102はフロ―トア―ム101と
同一のピン106で一端が支持部材105と結合され、
他端はばね受け部材116を介してピン110によって
コイルバネ103の一端と結合されている。副ア―ム1
02の中間部にはピン107により弁軸操作棒111が
連結されている。この弁軸操作棒111は図示しない切
替え弁に連結されており、スナップ機構100は弁軸操
作棒111を介して切替え弁とリンクされている。
One end of the sub arm 102 is connected to the support member 105 by the same pin 106 as the float arm 101,
The other end is connected to one end of the coil spring 103 by a pin 110 via a spring receiving member 116. Sub Arm 1
A valve shaft operating rod 111 is connected to an intermediate portion of 02 by a pin 107. The valve shaft operating rod 111 is connected to a switching valve (not shown), and the snap mechanism 100 is linked to the switching valve via the valve shaft operating rod 111.

【0007】また図6におけるコイルバネ103の他端
はばね受け部材115を介してピン112によってフロ
―トア―ム101と結合されている。従来技術の液体圧
送装置では、図示しない密閉容器内に復水が溜まるとフ
ロ―ト108が浮上し、このフロ―ト108の浮上に連
動してコイルバネ103のバネ受け部材115側が上方
向に移動し、コイルバネ103は圧縮変形する。そして
フロ―ト108が更に上昇し、コイルバネ103と副ア
―ム102が直線状に並び、なおもフロ―ト108が上
昇してコイルバネ103と副ア―ム102の角度が18
0度を越えると、コイルバネ103は急激に変形を回復
し、コイルバネ103と副ア―ム102間の連結部(ピ
ン110)は下側にスナップ移動する。その結果弁軸操
作棒111が下側に移動し、図示しない切替え弁が急激
に切り換えられる。
The other end of the coil spring 103 in FIG. 6 is connected to the float arm 101 by a pin 112 via a spring receiving member 115. In the liquid pumping device of the prior art, the float 108 floats when condensed water is accumulated in a closed container (not shown), and the spring receiving member 115 side of the coil spring 103 moves upward in conjunction with the floating of the float 108. Then, the coil spring 103 is compressed and deformed. Then, the float 108 further rises, the coil spring 103 and the sub arm 102 are aligned in a straight line, and the float 108 still rises so that the angle between the coil spring 103 and the sub arm 102 is 18 degrees.
When it exceeds 0 degrees, the coil spring 103 rapidly recovers its deformation, and the connecting portion (pin 110) between the coil spring 103 and the sub arm 102 snaps downward. As a result, the valve shaft operating rod 111 moves downward, and the switching valve (not shown) is rapidly switched.

【0008】[0008]

【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、コイルバネ103が座
屈し易いと言う問題点があった。即ち、コイルバネ10
3はフロ―ト108に連動して変形するときに、バネ受
け部材115,116がそれぞれピン112,110を
中心に揺動する。しかしながらピン112,110がコ
イルバネ103によって常時押圧力を受けているので、
バネ受け部材115,116の回動動作が円滑性を欠
き、バネ受け部材115,116の軸線がずれ、コイル
ばね103は「S」字状に湾曲するためである。
The liquid pumping device 100 of the prior art is capable of pumping liquid relatively efficiently with a simple structure, but has a problem that the coil spring 103 is likely to buckle. there were. That is, the coil spring 10
In No. 3, the spring receiving members 115 and 116 swing about the pins 112 and 110, respectively, when deformed in conjunction with the float 108. However, since the pins 112 and 110 are constantly pressed by the coil spring 103,
This is because the rotation operation of the spring receiving members 115 and 116 lacks smoothness, the axis lines of the spring receiving members 115 and 116 are deviated, and the coil spring 103 is curved in an “S” shape.

【0009】本発明は、従来技術の上記した問題点に注
目し、コイルバネの損傷が少ない液体圧送装置を提供す
ることを目的とする。
The present invention focuses on the above-mentioned problems of the prior art, and an object of the present invention is to provide a liquid pumping device in which the coil spring is less damaged.

【0010】[0010]

【課題を解決するための技術的手段】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―トと切替え
弁及びスナップ機構が内蔵され、スナップ機構は、密閉
容器内に支持された第1の軸と、前記第1の軸の周りに
回転するフロ―トア―ム及び第1副ア―ムと、前記第1
の軸から離れた点において前記フロ―トア―ムに支持さ
れて前記フロ―トア―ムの軸線上を移動する前記第1の
軸と平行な第2の軸と、前記第1の軸から離れた点にお
いて前記第1副ア―ムに支持されて前記第1の軸と平行
な第3の軸と、前記第1及び第2の軸から離れた前記フ
ロ―トア―ムの軸線上に支持されて前記第1の軸と平行
な第4の軸と、前記第2及び第3の軸の間に取り付けら
れて両取り付け部が回転可能である第2副ア―ムと、前
記第2及び第4の軸の間に取り付けられた圧縮コイルバ
ネを有し、前記フロ―トが前記フロ―トア―ムに連結さ
れ、前記切替え弁が弁軸操作棒を介して前記第3の軸に
連結された液体圧送装置にある。
The technical features of the present invention are as follows:
A float, a switching valve, and a snap mechanism are built in a closed container having a working fluid inlet, a working fluid outlet, a pressure-feeding liquid inlet, and a pressure-feeding liquid outlet. A first axis, a float arm and a first sub-arm that rotates around the first axis, and the first axis
A second axis parallel to the first axis which is supported by the float arm and moves on the axis of the float arm at a point away from the first axis; A third axis, which is supported by the first sub-arm at a certain point and is parallel to the first axis, and an axis of the float arm, which is separated from the first and second axes. A fourth shaft parallel to the first shaft, and a second sub-arm mounted between the second and third shafts so that both mounting parts are rotatable; A compression coil spring is mounted between the fourth shaft, the float is connected to the float arm, and the switching valve is connected to the third shaft via a valve shaft operating rod. It is in a liquid pumping device.

【0011】[0011]

【作用】本発明の液体圧送装置は、従来公知のそれと同
様にフロ―トの移動に応じてコイルバネがスナップ移動
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。即ち、密閉容器内に復水が溜まるとフロ
―トが浮上し、このフロ―トの浮上に連動してフロ―ト
ア―ムが第1の軸の周りに回転する。このフロ―トア―
ムの回転に連動して第2の軸側が第4の軸方向に移動し
ながら第1の軸と第3の軸を結ぶ線に近付き、コイルバ
ネは圧縮変形する。そしてフロ―トが更に上昇し、第2
の軸が第1の軸と第3の軸を結ぶ線上に並び、なおもフ
ロ―トが上昇して第2の軸が第1の軸と第3の軸を結ぶ
線を越えると、コイルバネは急激に変形を回復し、第3
の軸が、第1の軸と第2の軸を結ぶ線に対して初期とは
反対側にスナップ移動する。その結果、第3の軸に連結
された弁軸操作棒が移動し、切替え弁が急激に切り換え
られる。
In the liquid pumping device of the present invention, the coil spring snaps in accordance with the movement of the float, and the switching valve is switched to pump the liquid accumulated in the closed container, similarly to the conventionally known device. That is, when the condensate collects in the closed container, the float floats, and the float arm rotates around the first axis in conjunction with the floating of the float. This front door
The second spring moves closer to the line connecting the first shaft and the third shaft while moving in the fourth axial direction in conjunction with the rotation of the cam, and the coil spring is compressed and deformed. And the float rises further and the second
When the axes of are aligned on the line connecting the first axis and the third axis, and the float still rises and the second axis crosses the line connecting the first axis and the third axis, the coil spring is The deformation recovers rapidly, and the third
Axis snaps to the side opposite to the initial side with respect to the line connecting the first axis and the second axis. As a result, the valve shaft operating rod connected to the third shaft moves, and the switching valve is rapidly switched.

【0012】そして本発明の液体圧送装置で採用するコ
イルバネは、フロ―トア―ムに支持されフロ―トア―ム
の軸線上を移動する第2の軸と、この第2の軸から離れ
た点においてフロ―トア―ムに支持されて第2の軸と平
行な第4の軸の間に取り付けられている。そのため、コ
イルバネは、フロ―トに連動して変形するときにフロ―
トア―ムの軸線上を伸縮方向にだけ変形し、常に直線状
態を維持し湾曲することがない。従ってコイルバネの損
傷が少ない液体圧送装置を作ることができる。
The coil spring employed in the liquid pumping device of the present invention comprises a second shaft supported by the float arm and moving on the axis of the float arm, and a point separated from the second shaft. At the front arm and is mounted between a fourth shaft parallel to the second shaft. For this reason, the coil spring is designed so that when it is deformed in conjunction with the float,
Deforms only along the axis of the torma in the direction of expansion and contraction, and always maintains a straight state and does not bend. Therefore, it is possible to make a liquid pumping device with less damage to the coil spring.

【0013】[0013]

【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、切替え弁4及びスナッ
プ機構5が配置されたものである。
EXAMPLES Specific examples of the present invention will be described below. FIG. 1 is a sectional view of a liquid pumping device according to a specific embodiment of the present invention. In FIG. 1, a liquid pressure-feeding device 1 of this embodiment
In the closed container 2, the float 3, the switching valve 4, and the snap mechanism 5 are arranged.

【0014】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る。本実施例では密
閉容器2の本体部7は単なる容器であり、本実施例の特
徴的な構成要素は、概ね密閉容器2の蓋部8に設けられ
ている。即ち蓋部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。
Explaining in sequence, the closed container 2 has a main body 7
The lid portion 8 is joined with a screw (not shown), and the liquid storage space 10 is formed inside. In this embodiment, the main body 7 of the closed container 2 is a simple container, and the characteristic components of this embodiment are generally provided on the lid 8 of the closed container 2. That is, the lid 8 is provided with four openings, specifically, a working fluid introduction port 11, a working fluid discharge port 13, a pressure-feeding liquid inflow port 16, and a pressure-feeding liquid discharge port 17.

【0015】作動流体導入口11の内側、言い換えると
密閉容器2内部側の位置に給気弁20が取り付けられて
おり、作動流体排出口13の内側には排気弁21が取り
付けられている。ここで給気弁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、該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。弁体23は、半球状であり、昇降棒24の先
端に一体的に取り付けられている。
An air supply valve 20 is attached to the inside of the working fluid inlet 11, that is, a position inside the closed container 2, and an exhaust valve 21 is attached to the inside of the working fluid outlet 13. Here, the air supply valve 20 is composed of a valve case 22, a valve body 23, and a lifting 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 portion of the valve case 22, there are provided four openings 26 that communicate the above-mentioned through hole with the outside. The valve element 23 has a hemispherical shape and is integrally attached to the tip of the elevating rod 24.

【0016】本実施例の液体圧送装置1では、給気弁2
0の弁ケ―ス22の先端が、作動流体導入口11の中に
ねじ込まれている。そして弁体23は作動流体導入口1
1側にあり、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、連設板27に当接するようにな
っている。連設板27は、弁軸操作棒28に連結されて
いる。さらに弁軸操作棒28はスナップ機構5と連結さ
れている。
In the liquid pumping apparatus 1 of this embodiment, the air supply valve 2
The tip of the 0 valve case 22 is screwed into the working fluid inlet 11. The valve body 23 is the working fluid inlet 1
On the first side, the elevating rod 24 passes through the through hole of the valve case 22 and comes out to the closed container 2 side so as to abut the continuous plate 27. The connecting plate 27 is connected to the valve shaft operating rod 28. Further, the valve shaft operating rod 28 is connected to the snap mechanism 5.

【0017】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の先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。尚、弁軸操作棒
28と昇降棒31とはピン33で連結されている。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 is composed of 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, a valve seat 32 is inside the through hole, and a valve body 30 held and fixed to the tip of the elevating rod 31 comes into contact with the valve seat 32 from below. It opens and closes. The valve shaft operating rod 28 and the lifting rod 31 are connected by a pin 33. The supply valve 20 and the exhaust valve 21 constitute the switching valve 4, and when the supply valve 20 opens, the exhaust valve 21 closes, and when the supply valve 20 closes, the exhaust valve 21 opens.

【0018】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 pressure-feeding liquid inlet 16 is located substantially in the center of the lid portion 8, and the pressure-feeding liquid outlet 17 is provided at a position corresponding to the lower portion of the closed container 2.

【0019】フロ―ト3は、レバ―34及び軸35を介
してブラケット36によって支持されており、スナップ
機構5は、第1の軸37を介してブラケット38によっ
て支持されている。そしてブラケット36とブラケット
38は図示しないネジによって結合され密閉容器2の蓋
部8に一体的に取り付けられている。レバ―34は、板
を「U」字状に曲げ加工して作られたものであり、2枚
の板が平行に対向している。そしてレバ―34の曲げ加
工された部分にフロ―ト3が結合されている。またレバ
―34の他端部には軸40が取り付けられている。
The float 3 is supported by a bracket 36 via a lever 34 and a shaft 35, and the snap mechanism 5 is supported by a bracket 38 via a first shaft 37. The bracket 36 and the bracket 38 are joined by screws (not shown) and integrally attached to the lid portion 8 of the closed container 2. The lever 34 is made by bending a plate into a "U" shape, and two plates are opposed to each other in parallel. The float 3 is connected to the bent portion of the lever 34. A shaft 40 is attached to the other end of the lever 34.

【0020】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、軸41,42及び前記した
軸35が掛け渡されて連結されたものである。軸35は
フロ―ト3の揺動軸を兼ねている。フロ―ト3は軸35
を中心として上下に揺動する。また軸41,42はそれ
ぞれフロ―ト3の上下限のストッパを兼用している。一
方ブラケット38も同様に、「L」字状をした2枚の板
よりなり、前記した第1の軸37が掛け渡されて連結さ
れたものである。
When viewed from above, the bracket 36 is composed of two "L" -shaped plates, and the shafts 41, 42 and the shaft 35 are connected to each other. The shaft 35 also serves as the swing shaft of the float 3. Float 3 has shaft 35
It swings up and down around. The shafts 41 and 42 also serve as upper and lower limit stoppers for the float 3. On the other hand, similarly, the bracket 38 is also made up of two "L" -shaped plates, and the first shaft 37 is bridged and connected.

【0021】スナップ機構5は、フロ―トア―ム51、
第1副ア―ム52、第2副ア―ム53、圧縮状態のコイ
ルバネ54、バネ受け部材55及びバネ受け部材56か
らなるものである。フロ―トア―ム51は、平行に対向
した2枚の板よりなり、2枚の板の左端部には、溝57
が設けられている。フロ―トア―ム51は前記した第1
の軸37によって右端部が回転可能に支持されている。
またフロ―トア―ム51の溝57には前記したレバ―3
4の軸40が嵌合している。そのためフロ―トア―ム5
1は、フロ―ト3の浮沈に追従し、第1の軸37を中心
として上下に揺動する。
The snap mechanism 5 includes a floating arm 51,
The first sub arm 52, the second sub arm 53, the coil spring 54 in a compressed state, the spring receiving member 55, and the spring receiving member 56 are included. The front arm 51 is composed of two plates facing each other in parallel, and a groove 57 is formed at the left end of the two plates.
Is provided. The front arm 51 is the above-mentioned first
The right end of the shaft 37 is rotatably supported.
In addition, the groove 57 of the front arm 51 is provided with the lever 3 described above.
The shaft 40 of 4 is fitted. Therefore, the front arm 5
1 follows the ups and downs of the float 3 and swings up and down about the first shaft 37.

【0022】フロ―トア―ム51の中央部には、フロ―
トア―ム51の軸方向に長孔61が設けられている。長
孔61に前記した第1の軸37と平行な第2の軸58が
掛け渡され、バネ受け部材55が第2の軸58によって
支持されている。また、前記した第1の軸37に第1副
ア―ム52の右側部が回転可能に支持されている。第1
副ア―ム52は、平行に対向した2枚の板よりなり、2
枚の板の左側部には、前記した第1及び第2の軸37,
58と平行な第3の軸59が掛け渡されている。また、
フロ―トア―ム51の左側部には、前記した第1乃至第
3の軸37,58,59と平行な第4の軸60が掛け渡
され、バネ受け部材56が第4の軸60によって支持さ
れている。そして第2及び第3の軸58,59の間に第
2副ア―ム53が取り付けられている。第2副ア―ム5
3は、平行に対向した2枚の板よりなり、第2及び第3
の軸58,59との取り付け部が回転可能である。また
両バネ受け部材55,56の間に圧縮状態のコイルバネ
54が取り付けられている。そして第3の軸59に弁軸
操作棒28の下端が連結されている。
At the center of the front arm 51, there is a flow
A long hole 61 is provided in the axial direction of the torch 51. A second shaft 58, which is parallel to the first shaft 37, is stretched over the long hole 61, and the spring receiving member 55 is supported by the second shaft 58. Further, the right side portion of the first sub arm 52 is rotatably supported by the above-mentioned first shaft 37. First
The sub arm 52 is composed of two plates facing each other in parallel.
On the left side of the plate, the first and second shafts 37,
A third axis 59 parallel to 58 is spanned. Also,
A fourth shaft 60 parallel to the above-mentioned first to third shafts 37, 58, 59 is bridged on the left side portion of the float arm 51, and the spring receiving member 56 is moved by the fourth shaft 60. It is supported. A second sub arm 53 is attached between the second and third shafts 58 and 59. Second vice arm 5
3 is composed of two plates facing each other in parallel,
The mounting portions of the shafts 58 and 59 of the are rotatable. A coil spring 54 in a compressed state is attached between the spring receiving members 55 and 56. The lower end of the valve shaft operating rod 28 is connected to the third shaft 59.

【0023】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 pressure-feeding device 1 of the present embodiment will be described by following a series of operation procedures when steam is used as the working fluid. First, in the external pipe of the liquid pumping device 1, the working fluid introduction port 11 is connected to a high-pressure steam source, and the working fluid discharge port 13 is connected to the steam circulation pipe. In addition, the pressure-feeding liquid inlet 16 is provided from the outside with the liquid storage space 1
It is connected to a load such as a steam using device via a check valve (not shown) which opens toward 0. Meanwhile, the pressure-feeding liquid discharge port 17
Is connected to a liquid pressure destination such as a boiler via a check valve (not shown) that opens outward from the liquid storage space 10.

【0024】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。
Liquid reservoir space 1 of liquid pumping apparatus 1 of this embodiment
When there is no condensate in 0, the float 3 is located at the bottom as shown in FIG. At this time, the air supply valve 20 in the switching valve 4 is closed and the exhaust valve 21 is opened. When condensate is generated in the load of the steam using device or the like, the condensate flows down from the pressure-feeding liquid inlet 16 to the liquid pressure-feeding device 1 and is accumulated in the liquid reservoir space 10.

【0025】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、レバ―34が軸35を中心に
時計回り方向に回転して軸40が下方へ移動する。この
軸40の下方への移動に連動して、フロ―トア―ム51
が第1の軸37を中心に反時計回り方向に回転する。こ
のフロ―トア―ム51の回転に連動して第2の軸58が
長孔61に沿って第4の軸60方向に移動しながら第1
の軸37と第3の軸59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が更に上昇し、
第2の軸58が第1の軸37と第3の軸59を結ぶ線上
に並び、なおもフロ―ト3が上昇して第2の軸58が第
1の軸37と第3の軸59を結ぶ線よりも下方に移動す
ると、コイルバネ54は急激に変形を回復し、第1副ア
―ム52が時計回り方向に回転して第3の軸59が上方
にスナップ移動する。その結果、第3の軸59に連結さ
れた弁軸操作棒28が上側に移動し、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 floats up due to the condensed water stored in the liquid storage space 10, the lever 34 rotates clockwise around the shaft 35 and the shaft 40 moves downward. The float arm 51 is interlocked with the downward movement of the shaft 40.
Rotates counterclockwise about the first shaft 37. The second shaft 58 moves along the elongated hole 61 in the direction of the fourth shaft 60 in association with the rotation of the float arm 51, and the first shaft 58 moves.
When the coil spring 54 approaches the line connecting the shaft 37 and the third shaft 59, the coil spring 54 is compressed and deformed. And Float 3 goes up further,
The second shaft 58 is aligned on the line connecting the first shaft 37 and the third shaft 59, the float 3 is still raised, and the second shaft 58 is moved to the first shaft 37 and the third shaft 59. When it moves below the line connecting the two, the coil spring 54 suddenly recovers its deformation, the first sub arm 52 rotates clockwise, and the third shaft 59 snaps upward. As a result, the valve shaft operating rod 28 connected to the third shaft 59 moves upward, the air supply valve 20 is opened, and the exhaust valve 21 is closed.

【0026】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 introducing port 11 is opened, high-pressure steam is introduced into the closed container 2 and the internal pressure rises,
The condensed water stored in the liquid storage space 10 is pushed by the vapor pressure and is discharged from the pressure-feeding liquid discharge port 17 to an external boiler or a waste heat utilization device via a check valve (not shown).

【0027】復水を排出した結果復水溜空間10内の水
位が低下し、フロ―ト3が降下する。すると、レバ―3
4が軸35を中心に反時計回り方向に回転して軸40が
上方へ移動する。この軸40の上方への移動に連動し
て、フロ―トア―ム51が第1の軸37を中心に時計回
り方向に回転する。このフロ―トア―ム51の回転に連
動して第2の軸58が長孔61に沿って第4の軸60方
向に移動しながら第1の軸37と第3の軸59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、第2の軸58が第1の軸37と第
3の軸59を結ぶ線上に並び、なおもフロ―ト3が降下
して第2の軸58が第1の軸37と第3の軸59を結ぶ
線よりも上方に移動すると、コイルバネ54は急激に変
形を回復し、第1副ア―ム52が反時計回り方向に回転
して第3の軸59が下方にスナップ移動する。その結
果、第3の軸59に連結された弁軸操作棒28が下側に
移動し、給気弁20が閉じ、排気弁21が開口する。
As a result of discharging the condensate, the water level in the condensate reservoir space 10 is lowered and the float 3 is lowered. Then Lever 3
4 rotates counterclockwise around the shaft 35 and the shaft 40 moves upward. The float arm 51 rotates clockwise around the first shaft 37 in conjunction with the upward movement of the shaft 40. The second shaft 58 moves along the long hole 61 in the direction of the fourth shaft 60 in conjunction with the rotation of the float arm 51 to form a line connecting the first shaft 37 and the third shaft 59. When approaching, the coil spring 54 is compressed and deformed. Then, the float 3 is further lowered, the second shaft 58 is aligned on the line connecting the first shaft 37 and the third shaft 59, and the float 3 is still lowered and the second shaft 58 is moved to the first shaft 58. When moving above the line connecting the first shaft 37 and the third shaft 59, the coil spring 54 suddenly recovers its deformation, and the first sub arm 52 rotates counterclockwise to rotate the third shaft. 59 snaps downward. As a result, the valve shaft operating rod 28 connected to the third shaft 59 moves downward, the air supply valve 20 closes, and the exhaust valve 21 opens.

【0028】[0028]

【発明の効果】本発明の液体圧送装置では、コイルバネ
がフロ―トア―ムに支持された第2の軸と第4の軸間に
取り付けられ、第2の軸がフロ―トア―ムの軸線上を移
動する。そのため、コイルバネは、フロ―トに連動して
変形するときにフロ―トア―ムの軸線上を伸縮方向にだ
け変形し湾曲することがない。そのため本発明の液体圧
送装置は、コイルバネの損傷を少なくできる優れた効果
がある。また、第3の軸に弁軸操作棒を連結したもので
あるので、第1及び第2副ア―ムを連結する第3の軸が
弁軸操作棒の連結部を兼ねることができる。そのため、
第1副ア―ムに弁軸操作棒を連結するための軸を別途必
要としない。そのため部品点数を減少して構造を簡略化
できる優れた効果がある。
In the liquid pumping device of the present invention, the coil spring is attached between the second shaft and the fourth shaft supported by the float arm, and the second shaft is the shaft of the float arm. Move on the line. Therefore, when the coil spring is deformed in conjunction with the float, the coil spring is not deformed and curved only in the expansion / contraction direction on the axis of the float arm. Therefore, the liquid pumping device of the present invention has an excellent effect of reducing damage to the coil spring. Further, since the valve shaft operating rod is connected to the third shaft, the third shaft connecting the first and second sub arms can also serve as the connecting portion of the valve shaft operating rod. for that reason,
No additional shaft is required for connecting the valve shaft operating rod to the first sub arm. Therefore, there is an excellent effect that the number of parts can be reduced and the structure can be simplified.

【図面の簡単な説明】[Brief description of drawings]

【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 device according to a specific embodiment of the present invention.

【図2】従来技術の液体圧送装置におけるスナップ機構
の断面図である。
FIG. 2 is a cross-sectional view of a snap mechanism in a liquid pumping device of the related art.

【符号の説明】[Explanation of symbols]

2 密閉容器 3 フロ―ト 4 切替え弁 5 スナップ機構 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 弁軸操作棒 37 第1の軸 51 フロ―トア―ム 52 第1副ア―ム 53 第2副ア―ム 54 圧縮状態のコイルバネ 58 第2の軸 59 第3の軸 60 第4の軸 61 長孔 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 11 Working fluid inlet 13 Working fluid discharge port 16 Pressurized liquid inlet 17 Pressurized liquid discharge port 20 Air supply valve 21 Exhaust valve 28 Valve shaft operating rod 37 First shaft 51 Float Arm 52 First Sub Arm 53 Second Sub Arm 54 Coil Spring in Compressed State 58 Second Axis 59 Third Axis 60 Fourth Axis 61 Long Hole

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 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―トと切替え弁及びスナップ機構が内蔵され、スナッ
プ機構は、密閉容器内に支持された第1の軸と、前記第
1の軸の周りに回転するフロ―トア―ム及び第1副ア―
ムと、前記第1の軸から離れた点において前記フロ―ト
ア―ムに支持されて前記フロ―トア―ムの軸線上を移動
する前記第1の軸と平行な第2の軸と、前記第1の軸か
ら離れた点において前記第1副ア―ムに支持されて前記
第1の軸と平行な第3の軸と、前記第1及び第2の軸か
ら離れた前記フロ―トア―ムの軸線上に支持されて前記
第1の軸と平行な第4の軸と、前記第2及び第3の軸の
間に取り付けられて両取り付け部が回転可能である第2
副ア―ムと、前記第2及び第4の軸の間に取り付けられ
た圧縮コイルバネを有し、前記フロ―トが前記フロ―ト
ア―ムに連結され、前記切替え弁が弁軸操作棒を介して
前記第3の軸に連結されたことを特徴とする液体圧送装
置。
1. A float, a switching valve, and a snap mechanism are built in a closed container having a working fluid inlet, a working fluid outlet, a pressure-feeding liquid inflow port, and a pressure-feeding liquid discharge port. A first shaft supported by the first shaft, a float arm rotating around the first shaft, and a first sub arm.
A second axis parallel to the first axis that is supported by the float arm at a point away from the first axis and moves on the axis of the float arm; A third axis supported by the first sub-arm at a point remote from the first axis and parallel to the first axis, and the float door remote from the first and second axes. A fourth shaft supported on the axis of the frame and parallel to the first shaft; and a second shaft mounted between the second shaft and the third shaft so that both mounting portions are rotatable.
It has a sub arm and a compression coil spring attached between the second and fourth shafts, the float is connected to the float arm, and the switching valve is a valve shaft operating rod. A liquid pressure-feeding device connected to the third shaft via the liquid pumping device.
JP30687394A 1994-11-15 1994-11-15 Liquid pumping device Expired - Fee Related JP3170672B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30687394A JP3170672B2 (en) 1994-11-15 1994-11-15 Liquid pumping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30687394A JP3170672B2 (en) 1994-11-15 1994-11-15 Liquid pumping device

Publications (2)

Publication Number Publication Date
JPH08145292A true JPH08145292A (en) 1996-06-07
JP3170672B2 JP3170672B2 (en) 2001-05-28

Family

ID=17962279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30687394A Expired - Fee Related JP3170672B2 (en) 1994-11-15 1994-11-15 Liquid pumping device

Country Status (1)

Country Link
JP (1) JP3170672B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU725027B2 (en) * 1997-06-13 2000-10-05 Tlv Co., Ltd. Liquid forced-feed apparatus
CN100412440C (en) * 2006-02-16 2008-08-20 洪有福 Pilot operated lever steam trap
CN104154300A (en) * 2014-07-30 2014-11-19 攀钢集团西昌钢钒有限公司 Automatic liquid supply or drainage device for container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU725027B2 (en) * 1997-06-13 2000-10-05 Tlv Co., Ltd. Liquid forced-feed apparatus
CN100412440C (en) * 2006-02-16 2008-08-20 洪有福 Pilot operated lever steam trap
CN104154300A (en) * 2014-07-30 2014-11-19 攀钢集团西昌钢钒有限公司 Automatic liquid supply or drainage device for container

Also Published As

Publication number Publication date
JP3170672B2 (en) 2001-05-28

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