JPH08170793A - Equipment for forcibly feeding liquid - Google Patents

Equipment for forcibly feeding liquid

Info

Publication number
JPH08170793A
JPH08170793A JP6333946A JP33394694A JPH08170793A JP H08170793 A JPH08170793 A JP H08170793A JP 6333946 A JP6333946 A JP 6333946A JP 33394694 A JP33394694 A JP 33394694A JP H08170793 A JPH08170793 A JP H08170793A
Authority
JP
Japan
Prior art keywords
shaft
arm
float
axis
sub
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
JP6333946A
Other languages
Japanese (ja)
Other versions
JP3364702B2 (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 JP33394694A priority Critical patent/JP3364702B2/en
Priority to US08/529,966 priority patent/US5655888A/en
Priority to TW084110117A priority patent/TW342423B/en
Priority to AU33000/95A priority patent/AU681540B2/en
Priority to EP02078275A priority patent/EP1265013B1/en
Priority to EP02078276A priority patent/EP1265014B1/en
Priority to BR9504388A priority patent/BR9504388A/en
Priority to DE1995634070 priority patent/DE69534070T2/en
Priority to DK95202747T priority patent/DK0709607T3/en
Priority to DE1995635497 priority patent/DE69535497T2/en
Priority to DE1995629875 priority patent/DE69529875T2/en
Priority to EP19950202747 priority patent/EP0709607B1/en
Priority to ES95202747T priority patent/ES2194886T3/en
Priority to NO954065A priority patent/NO309624B1/en
Priority to KR1019950035491A priority patent/KR0157722B1/en
Priority to CN95109585A priority patent/CN1069956C/en
Priority to CA 2160629 priority patent/CA2160629C/en
Publication of JPH08170793A publication Critical patent/JPH08170793A/en
Priority to US08/735,302 priority patent/US5755560A/en
Priority to AU16223/97A priority patent/AU683200B2/en
Priority to US08/908,849 priority patent/US6244828B1/en
Application granted granted Critical
Publication of JP3364702B2 publication Critical patent/JP3364702B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE: To provide a liquid forcibly feeding equipment capable of surely switching a switch valve by a small float, and preventing a coil spring from being damaged. CONSTITUTION: A float 3, a switch valve 4 and a snap mechanism 5 are built in a sealed container 2. The snap mechanism is provided with a first shaft 37 supported in the sealed container, a float arm 51 and a first auxiliary arm 52 to turn around the first shaft, a second shaft 58 to be supported by the float arm, a third shaft 59 to be supported by the first auxiliary arm, a fourth shaft 63 to be supported by the first auxiliary arm and movable in the direction of the third shaft, a second auxiliary arm 53 to be fitted between the second and fourth shafts, and whose each fitting end is turnable, and a compressive coil 54 fitted between the third and fourth shafts, and the distance between the first and fourth shafts is formed longer than the distance between the first and second shafts. The float is connected to the float arm, and the switch valve is connected to the auxiliary arm through the valve stem operating rod 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2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. 2 is a front view of a snap mechanism of a conventional 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2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、副ア
―ムに連結された弁軸操作棒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 shown in FIG. 2 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 connected to the sub arm 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、切替え弁を確実に切り
換えるだけの力を得るために、大きな浮力、即ち大きな
フロ―トを必要とする問題があった。これは、従来技術
の液体圧送装置100では、ピン106とピン110及
びピン112で形成される三角形において、ピン106
とピン112間の距離がピン106とピン110間の距
離よりも長く、即ちピン106とピン112間の距離が
長いものであるために、副ア―ム102に伝達するフロ
―トア―ム101による浮力の拡大比が小さいためであ
る。またピン106とピン110間の距離が短いもので
あるために、弁軸操作棒111に伝達する副ア―ム10
2による拡大比も小さいためである。
The liquid pumping device 100 of the prior art is capable of pumping liquid relatively efficiently with a simple structure, but obtains a force sufficient to reliably switch the switching valve. Therefore, there is a problem that a large buoyancy, that is, a large float is required. This is because in the prior art liquid pumping device 100, in the triangle formed by the pins 106, 110 and 112, the pin 106
Since the distance between the pin 112 and the pin 112 is longer than the distance between the pin 106 and the pin 110, that is, the distance between the pin 106 and the pin 112 is longer, the floating arm 101 transmitting to the sub arm 102 causes This is because the expansion ratio of buoyancy is small. Further, since the distance between the pin 106 and the pin 110 is short, the auxiliary arm 10 that transmits to the valve shaft operating rod 111.
This is because the enlargement ratio by 2 is also small.

【0009】また従来技術の液体圧送装置100は、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103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、コイルバネ103は「S」字状に湾曲するた
めである。
Further, the conventional liquid pressure-feeding apparatus 100 has a problem that the coil spring 103 is apt to buckle. That is, when the coil spring 103 is deformed in conjunction with the float 108, the spring receiving members 115 and 116 swing around the pins 112 and 110, respectively. However, since the pins 112 and 110 are constantly pressed by the coil spring 103, 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 operates as "S". It is because it is curved like a letter.

【0010】本発明は、従来技術の上記した問題点に注
目し、小さな浮力であっても強力な力で切替え弁を切り
換えて、動作が確実であると共に、コイルバネの損傷を
防止して、故障の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 pays attention to the above-mentioned problems of the prior art. Even if the buoyancy is small, the switching valve is switched with a strong force to ensure the operation, and the coil spring is prevented from being damaged to cause a failure. It is an object of the present invention to provide a liquid pumping device having a small amount.

【0011】[0011]

【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3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3の軸方向に移動可能である前記第1の軸と平行な第
4の軸と、前記第2及び第4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
3及び第4の軸の間に取り付けられた圧縮コイルバネを
有すると共に、前記第1の軸と前記第4の軸間の距離が
前記第1の軸と前記第2の軸間の距離よりも長く形成さ
れ、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1副ア―ムに連
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 and supported by the float arm at a point away from the first axis and a first sub-arm at a point away from the first axis. And a third axis parallel to the first axis, and supported by the first sub-arm at a point distant from the first and third axes and movable in the third axial direction. A fourth axis parallel to the first axis; a second sub-arm mounted between the second and fourth axes such that both mounting parts are rotatable; and the third and third axes. And a distance between the first shaft and the fourth shaft is longer than a distance between the first shaft and the second shaft. Liquid pumping in which the float is connected to the float arm and the switching valve is connected to the first sub arm via a valve shaft operating rod. It is in the location.

【0012】[0012]

【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―
ムの回転によって第2副ア―ムの一方の連結部である第
2の軸が第1の軸と第4の軸を結ぶ線に近付くと共に、
第2副ア―ムの他方の連結部である第4の軸が第3の軸
方向に移動し、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4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4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1副ア―ムが第1の軸の周りに回転し、第1
副ア―ムに連結された弁軸操作棒が移動して、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 rotation of the arm causes the second shaft, which is one of the connecting parts of the second sub arm, to approach the line connecting the first shaft and the fourth shaft,
The fourth shaft, which is the other connecting portion of the second sub arm, moves in the third axial direction, and the coil spring is compressed and deformed. Then the float further rises, the second shaft is aligned on the line connecting the first shaft and the fourth shaft, and the float still rises so that the second shaft becomes the first shaft and the fourth shaft. When the coil spring crosses the line connecting the axes, the coil spring rapidly recovers its deformation, and the third shaft snaps to the side opposite to the initial line with respect to the line connecting the first axis and the second axis. As a result, the first sub-arm rotates about the first axis,
The valve stem operating rod connected to the sub arm moves to rapidly switch the switching valve.

【0013】そして本発明の液体圧送装置で採用するス
ナップ機構は、第1の軸と第4の軸間の距離を第1の軸
と第2の軸間の距離よりも長くしたものであるので、即
ち、第1の軸と第2の軸及び第4の軸で形成される三角
形において、第1の軸と第2の軸間の距離が短く、第1
の軸と第4の軸間の距離が長いものであるので、第1副
ア―ムに伝達するフロ―トア―ムによる浮力の拡大比が
大きくなり、また弁軸操作棒に伝達する第1副ア―ムに
よる拡大比も大きくなる。従って、小さな浮力、即ち小
さなフロ―トを用いたものであっても強力な力で切替え
弁を切り換えることができる。
In the snap mechanism adopted in the liquid pumping device of the present invention, the distance between the first shaft and the fourth shaft is made longer than the distance between the first shaft and the second shaft. That is, in the triangle formed by the first axis, the second axis and the fourth axis, the distance between the first axis and the second axis is short,
Since the distance between the shaft and the fourth shaft is long, the expansion ratio of the buoyancy by the float arm transmitted to the first sub arm becomes large, and the first sub transmission transmitted to the valve shaft operating rod becomes large. The expansion ratio by the arm is also large. Therefore, even if a small buoyancy, that is, a small float is used, the switching valve can be switched with a strong force.

【0014】また本発明の液体圧送装置で採用するスナ
ップ機構は、コイルバネを第1副ア―ムに支持された第
3の軸と、第1副ア―ムに支持されて第3の軸方向に移
動可能である第4の軸の間に取り付けたものである。そ
のため、コイルバネは、フロ―トに連動して変形すると
きに第3の軸方向に、即ち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
バネの損傷を防止することができる。
In the snap mechanism adopted in the liquid pumping device of the present invention, the coil spring has a third shaft supported by the first sub arm and a third axial direction supported by the first sub arm. It is mounted between a fourth shaft that is movable. Therefore, the coil spring is deformed only in the third axial direction, that is, in the expansion / contraction direction when deformed in conjunction with the float, and is always maintained in a linear state and is not curved. Therefore, damage to the coil spring can be prevented.

【0015】[0015]

【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.

【0016】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.

【0017】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 inside the working fluid inlet 11, in other words, a position inside the closed container 2, and an exhaust valve 21 is attached inside 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.

【0018】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.

【0019】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.

【0020】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.

【0021】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.

【0022】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、軸43及び前記した第1の軸37が掛け渡さ
れて連結されたものである。軸43は下記の第1副ア―
ム52のストッパ―を兼ねている。
When viewed from above, the bracket 36 is made up of two "L" -shaped plates, and the shafts 41, 42 and the shaft 35 described above are bridged and connected. 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 shaft 43 and the above-mentioned first shaft 37 are bridged and connected. Axis 43 is the first auxiliary arm below
It also serves as a stopper for the frame 52.

【0023】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、それぞれの板は、正面から見る
と「L」字状をしている。フロ―トア―ム51の左端部
には、溝57が設けられ、前記したレバ―34の軸40
が嵌合している。またフロ―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。そのためフロ―トア―ム51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 each plate has an "L" shape when viewed from the front. A groove 57 is provided at the left end of the float arm 51, and the shaft 40 of the lever 34 described above is provided.
Are fitted. The right end of the float arm 51 is rotatably supported by the first shaft 37. Therefore, the float arm 51 follows the ups and downs of the float 3 and swings up and down about the first shaft 37.

【0024】フロ―トア―ム51の下端部には、前記し
た第1の軸37と平行な第2の軸58が掛け渡されてい
る。また前記した第1の軸37に第1副ア―ム52の上
端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、それぞれの板
は、正面から見ると「L」字状をしている。
A second shaft 58, which is parallel to the above-mentioned first shaft 37, is stretched over the lower end of the float arm 51. The upper end of the first sub arm 52 is rotatably supported by the first shaft 37 described above. First subarm 52
Consists of two plates facing each other in parallel, and each plate has an “L” shape when viewed from the front.

【0025】第1副ア―ム52の下端部には、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、バネ受け部材55が支持されている。また第
1副ア―ム52の中央部には、前記した第3の軸59方
向に延びる長孔61が設けられ、前記した第1乃至第3
の軸37,58,59と平行な第4の軸63が掛け渡さ
れている。第4の軸63は、長孔61に案内されて第3
の軸59方向に移動可能である。第4の軸63にはバネ
受け部材56が支持されている。そして両バネ受け部材
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。第1の軸37と第4の軸63間の距離は、
第1の軸37と第2の軸58間の距離よりも長く形成さ
れている。また第2及び第4の軸58,63の間に第2
副ア―ム53が取り付けられている。第2副ア―ム53
は、平行に対向した2枚の板よりなり、第2及び第4の
軸58,63との取り付け部が回転可能である。また第
1副ア―ム52の上端部に軸60が掛け渡され、弁軸操
作棒28の下端が連結されている。フロ―トア―ム51
には、軸60の動きを妨げないように、窓62が開けら
れている。
A third shaft 59, which is parallel to the first and second shafts 37 and 58, is stretched around the lower end of the first sub arm 52 to support the spring receiving member 55. . Further, an elongated hole 61 extending in the direction of the third axis 59 is provided in the central portion of the first sub arm 52, and the first to the third
A fourth shaft 63, which is parallel to the shafts 37, 58, and 59, is bridged. The fourth shaft 63 is guided by the long hole 61 and
Can be moved in the direction of the axis 59. The spring bearing member 56 is supported by the fourth shaft 63. The compressed coil spring 54 is attached between the spring receiving members 55 and 56. The distance between the first axis 37 and the fourth axis 63 is
It is formed longer than the distance between the first shaft 37 and the second shaft 58. In addition, the second and the fourth shafts 58, 63 are provided with a second
The sub arm 53 is attached. Second vice arm 53
Is composed of two plates that face each other in parallel, and the mounting portions for the second and fourth shafts 58 and 63 are rotatable. Further, a shaft 60 is stretched over the upper end of the first sub arm 52, and the lower end of the valve shaft operating rod 28 is connected. Front arm 51
A window 62 is opened in the shaft so as not to hinder the movement of the shaft 60.

【0026】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.

【0027】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 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.

【0028】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、第1の軸37と第4の軸63を結ぶ線に近付くと共
に第4の軸63が長孔61に沿って第3の軸59方向に
移動し、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4
の軸63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4の軸63を結ぶ線
よりも右方に移動すると、コイルバネ54は急激に変形
を回復し、第3の軸59が左方にスナップ移動する。そ
の結果、第1副ア―ム52が時計回り方向に回転して、
第1副ア―ム52の軸60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 is interlocked with the rotation of the float arm 51.
However, the coil spring 54 is compressed and deformed by approaching the line connecting the first shaft 37 and the fourth shaft 63 and moving the fourth shaft 63 along the elongated hole 61 in the direction of the third shaft 59. And flow
3 further rises, the second shaft 58 and the first shaft 37 and the fourth shaft 58
When the second shaft 58 moves to the right of the line connecting the first shaft 37 and the fourth shaft 63, the coil spring 54 becomes The deformation is rapidly recovered, and the third shaft 59 snaps to the left. As a result, the first sub arm 52 rotates clockwise,
The valve shaft operating rod 28 connected to the shaft 60 of the first auxiliary arm 52.
Moves to the upper side, the air supply valve 20 is opened, and the exhaust valve 21 is closed.

【0029】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 to increase the internal pressure,
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).

【0030】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、第1の軸37と第4の軸63を
結ぶ線に近付くと共に第4の軸63が長孔61に沿って
第3の軸59方向に移動し、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4の軸63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
4の軸63を結ぶ線よりも左方に移動すると、コイルバ
ネ54は急激に変形を回復し、第3の軸59が右方にス
ナップ移動する。その結果、第1副ア―ム52が反時計
回り方向に回転して、第1副ア―ム52の軸60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 approaches the line connecting the first shaft 37 and the fourth shaft 63 in conjunction with the rotation of the float arm 51, and the fourth shaft 63 moves along the slot 61 along the first hole. 3, the coil spring 54 is compressed and deformed. Then, the float 3 further descends, the second shaft 58 is aligned on the line connecting the first shaft 37 and the fourth shaft 63, and the float 3 still descends so that the second shaft 58 becomes When moving to the left of the line connecting the first shaft 37 and the fourth shaft 63, the coil spring 54 rapidly recovers its deformation, and the third shaft 59 snaps to the right. As a result, the first sub arm 52 rotates counterclockwise, the valve shaft operating rod 28 connected to the shaft 60 of the first sub arm 52 moves downward, and the air supply valve 20 Is closed and the exhaust valve 21 is opened.

【0031】[0031]

【発明の効果】本発明の液体圧送装置では、第1の軸と
第4の軸間の距離を第1の軸と第2の軸間の距離よりも
長くしている。そのため第1の軸と第2の軸間の距離を
短く、第1の軸と第4の軸間の距離を長くでき、第1副
ア―ムに伝達するフロ―トア―ムによる浮力の拡大比が
大きくなり、また弁軸操作棒に伝達する第1副ア―ムに
よる拡大比も大きくなる。そのため本発明の液体圧送装
置は、小さなフロ―トを用いたものであっても強力な力
で切替え弁を切り換えて、確実に液体を圧送できる優れ
た効果がある。
In the liquid pumping apparatus of the present invention, the distance between the first shaft and the fourth shaft is longer than the distance between the first shaft and the second shaft. Therefore, the distance between the first axis and the second axis can be shortened, the distance between the first axis and the fourth axis can be increased, and the buoyancy can be increased by the float arm transmitted to the first sub arm. The ratio is increased, and the expansion ratio by the first auxiliary arm transmitted to the valve shaft operating rod is also increased. Therefore, the liquid pumping device of the present invention has an excellent effect that the switching valve can be switched with a strong force to reliably pump the liquid even if a small float is used.

【0032】また本発明の液体圧送装置では、コイルバ
ネを第1副ア―ムに支持された第3の軸と、第1副ア―
ムに支持されて第3の軸方向に移動可能である第4の軸
の間に取り付けている。そのためフロ―トに連動してコ
イルバネが変形するときに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防止し
て、確実に液体を圧送できる優れた効果がある。
Further, in the liquid pumping apparatus of the present invention, the coil spring is supported by the third sub-arm and the first sub-arm.
It is mounted between a fourth shaft supported by a frame and movable in the third axial direction. Therefore, when the coil spring is deformed in conjunction with the float, it does not bend. Therefore, the liquid pumping device of the present invention has an excellent effect that the coil spring is prevented from being damaged and the liquid can be pumped reliably.

【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 61 長孔 63 第4の軸 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 11 Working fluid inlet 13 Working fluid discharge port 16 Pressure feed liquid inlet 17 Pressure feed liquid discharge port 20 Air supply valve 21 Exhaust valve 28 Valve shaft operating rod 37 First shaft 51 Float Arm 52 First Auxiliary Arm 53 Second Auxiliary Arm 54 Coil Spring in Compressed State 58 Second Axis 59 Third Axis 61 Long Hole 63 Fourth Axis

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3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3の軸方向に移動可能である前記第1
の軸と平行な第4の軸と、前記第2及び第4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3及び第4の軸の間に取り付けられた圧
縮コイルバネを有すると共に、前記第1の軸と前記第4
の軸間の距離が前記第1の軸と前記第2の軸間の距離よ
りも長く形成され、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
1副ア―ム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.
And a second axis supported by the float arm at a point distant from the first axis and parallel to the first axis,
A third axis which is supported by the first sub-arm at a point away from the first axis and is parallel to the first axis;
And the first sub-arm which is supported by the first sub-arm and is movable in the third axial direction at a point away from the third axis.
A fourth axis parallel to the axis of the second axis, a second sub-arm mounted between the second and fourth axes and having both mounting parts rotatable, and a third axis of the third and fourth axes. And a compression coil spring mounted between the first shaft and the fourth shaft.
A distance between the shafts of the first shaft and the second shaft is longer than the distance between the first shaft and the second shaft, the float is connected to the float arm, and the switching valve operates the valve shaft operating rod. A liquid pressure-feeding device, which is connected to the first sub-arm via a liquid.
JP33394694A 1994-10-14 1994-12-15 Liquid pumping device Expired - Fee Related JP3364702B2 (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
JP33394694A JP3364702B2 (en) 1994-12-15 1994-12-15 Liquid pumping device
US08/529,966 US5655888A (en) 1994-10-14 1995-09-19 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve
TW084110117A TW342423B (en) 1994-10-14 1995-09-27 Pump and over-center snap mechanism
AU33000/95A AU681540B2 (en) 1994-10-14 1995-09-29 Pump and over-centre snap link
DE1995629875 DE69529875T2 (en) 1994-10-14 1995-10-11 Pump and self-locking snap connection
EP02078276A EP1265014B1 (en) 1994-10-14 1995-10-11 Pump and over-center snap link
BR9504388A BR9504388A (en) 1994-10-14 1995-10-11 Pump and over-center spring linkage
DE1995634070 DE69534070T2 (en) 1994-10-14 1995-10-11 Pump and self-locking snap connection
DK95202747T DK0709607T3 (en) 1994-10-14 1995-10-11 Pump and self-inhibiting snap connection
DE1995635497 DE69535497T2 (en) 1994-10-14 1995-10-11 Pump and self-locking snap connection
EP02078275A EP1265013B1 (en) 1994-10-14 1995-10-11 Pump and over-center snap link
EP19950202747 EP0709607B1 (en) 1994-10-14 1995-10-11 Pump and over-center snap link
ES95202747T ES2194886T3 (en) 1994-10-14 1995-10-11 PUMP AND DISCENTRATED INSTANT CLOSURE CONNECTION.
NO954065A NO309624B1 (en) 1994-10-14 1995-10-13 Pump with snap joint device
KR1019950035491A KR0157722B1 (en) 1994-10-14 1995-10-14 Pump and combination pump and trap with snap-over mechanism and double seal outlet valve
CN95109585A CN1069956C (en) 1994-10-14 1995-10-16 Pump and over-center snap link
CA 2160629 CA2160629C (en) 1994-10-14 1995-10-16 Pump and over-center snap link
US08/735,302 US5755560A (en) 1994-10-14 1996-10-22 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve
AU16223/97A AU683200B2 (en) 1994-10-14 1997-03-11 Pump and over-center snap link
US08/908,849 US6244828B1 (en) 1994-10-14 1997-08-08 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33394694A JP3364702B2 (en) 1994-12-15 1994-12-15 Liquid pumping device

Publications (2)

Publication Number Publication Date
JPH08170793A true JPH08170793A (en) 1996-07-02
JP3364702B2 JP3364702B2 (en) 2003-01-08

Family

ID=18271751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33394694A Expired - Fee Related JP3364702B2 (en) 1994-10-14 1994-12-15 Liquid pumping device

Country Status (1)

Country Link
JP (1) JP3364702B2 (en)

Also Published As

Publication number Publication date
JP3364702B2 (en) 2003-01-08

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