JP3341200B2 - Liquid pumping device - Google Patents

Liquid pumping device

Info

Publication number
JP3341200B2
JP3341200B2 JP11368295A JP11368295A JP3341200B2 JP 3341200 B2 JP3341200 B2 JP 3341200B2 JP 11368295 A JP11368295 A JP 11368295A JP 11368295 A JP11368295 A JP 11368295A JP 3341200 B2 JP3341200 B2 JP 3341200B2
Authority
JP
Japan
Prior art keywords
float
shaft
arm
valve
liquid
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.)
Expired - Fee Related
Application number
JP11368295A
Other languages
Japanese (ja)
Other versions
JPH08285185A (en
Inventor
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 JP11368295A priority Critical patent/JP3341200B2/en
Priority to US08/529,966 priority patent/US5655888A/en
Priority to AU33000/95A priority patent/AU681540B2/en
Priority to DK95202747T priority patent/DK0709607T3/en
Priority to ES95202747T priority patent/ES2194886T3/en
Priority to DE1995629875 priority patent/DE69529875T2/en
Priority to BR9504388A priority patent/BR9504388A/en
Priority to EP19950202747 priority patent/EP0709607B1/en
Priority to KR1019950035491A priority patent/KR0157722B1/en
Priority to CN95109585A priority patent/CN1069956C/en
Priority to CA 2160629 priority patent/CA2160629C/en
Priority to US08/735,302 priority patent/US5755560A/en
Publication of JPH08285185A publication Critical patent/JPH08285185A/en
Priority to AU16223/97A priority patent/AU683200B2/en
Priority to US08/908,849 priority patent/US6244828B1/en
Application granted granted Critical
Publication of JP3341200B2 publication Critical patent/JP3341200B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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 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
効率で稼動させるためには、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 container and to switch the switching valve reliably.

【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, in the liquid pressure feeding device, a snap mechanism using a coil spring is generally adopted, and the switching of the switching valve has been surely performed. 2. Description of the Related Art An example of a liquid pumping device including a snap mechanism using a coil spring includes a configuration disclosed in US Pat. No. 5,141,405.

【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。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ている。そしてフロ―トア―ム1
01の先端には、フロ―ト108が固着されたねじ部材
の先端がねじ結合されている。
FIG. 2 is a front view of a snap mechanism of a conventional liquid pressure feeding device. The above-mentioned U.S. Pat.
In the liquid pumping device disclosed in Japanese Patent Application Publication No.
Is constituted by a float arm 101, a sub arm 102 and a coil spring 103 in a compressed state. The float arm 101 is swingably fixed to the support member 105 by a pin 106. And Float Arm 1
The tip of the screw member to which the float 108 is fixed is screwed to the tip of 01.

【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。
[0006] 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. Secondary arm 1
A valve shaft operating rod 111 is connected to an intermediate portion of the valve 02 by a pin 107. The valve stem 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 stem 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 in FIG. 2 is connected to the float arm 101 by a pin 112 via a spring receiving member 115. In the prior art liquid pumping apparatus, when condensed water is collected in a closed container (not shown), the float 108 floats, and the spring receiving member 115 side of the coil spring 103 moves upward in conjunction with the float 108 floating. Then, the coil spring 103 is compressed and deformed. Then, the float 108 further rises, and the coil spring 103 and the sub arm 102 are arranged in a straight line. The float 108 still rises, and the angle between the coil spring 103 and the sub arm 102 becomes 18.
When the angle exceeds 0 degrees, the coil spring 103 rapidly recovers from the 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、フロ―ト108が固着された
ねじ部材とフロ―トア―ム101をねじ結合したもので
あるので、所定の上下二位置で切替え弁を切り換えるた
めに、フロ―トア―ムあるいはねじ部材を長く形成しな
ければならない問題があった。
The prior art liquid pumping apparatus is capable of relatively efficiently pumping a liquid with a simple structure. However, the liquid pumping apparatus has a screw member to which a float 108 is fixed and a flow member. Since the arm 101 is screw-coupled, there is a problem that the float arm or the screw member must be formed long in order to switch the switching valve between predetermined upper and lower positions.

【0009】本発明は、従来技術の上記した問題点に注
目し、フロ―トア―ムとフロ―トの連結部を長くしなく
ても所定の上下二位置で切替え弁を切り換えることがで
きる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 is capable of switching a switching valve between two predetermined upper and lower positions without lengthening a connecting portion between a float arm and a float. An object is to provide a pumping device.

【0010】[0010]

【課題を解決するための技術的手段】本発明の特徴は、
密閉容器に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が設けられ、密閉容器内にフ
ロ―トと切替え弁及びフロ―トア―ムを有するスナップ
機構が内蔵され、スナップ機構によってフロ―トの上下
二位置で切替え弁を切り換える液体圧送装置において、
フロ―トア―ムの先端が挿入される短管をフロ―トに固
着し、フロ―トア―ムの先端に支持された軸に短管を回
転可能に取り付け、短管先端がフロ―トア―ムに当接し
て所定以上の回転を禁止するようにした液体圧送装置に
ある。
Technical features of the present invention:
A working fluid inlet, a working fluid outlet, a pumping liquid inlet and a pumping liquid outlet are provided in the closed container, and a snap mechanism having a float, a switching valve, and a floating arm is built in the closed container, In a liquid pumping device that switches a switching valve between upper and lower positions of a float by a snap mechanism,
The short pipe into which the tip of the float arm is inserted is fixed to the float, and the short pipe is rotatably mounted on a shaft supported by the tip of the float arm, and the tip of the short pipe is floated. The liquid pressure feeding device is configured to prohibit rotation of a predetermined amount or more by contacting the liquid pressure feeding device.

【0011】[0011]

【作用】本発明の液体圧送装置では、フロ―トア―ムの
先端が挿入される短管をフロ―トに固着し、フロ―トア
―ムの先端に支持された軸に短管を回転可能に取り付
け、短管先端がフロ―トア―ムに当接して所定以上の回
転を禁止するようにしている。そのため、密閉容器内の
液面に応じて、先ず短管が固着されたフロ―トがフロ―
トア―ムに支持された軸を中心として上下に揺動し、所
定量揺動した後に短管先端がフロ―トア―ムに当接す
る。そして、その後はフロ―トに連動してフロ―トア―
ムが変位し、所定位置でスナップ動作が生じて切替え弁
が急激に切り換えられる。このように、本発明の液体圧
送装置では、フロ―トがフロ―トア―ムとは別に所定角
度、すなわち所定量上下に変位できるので、フロ―トと
フロ―トア―ムの連結部が短くても所定の上下二位置で
切替え弁を切り換えることができる。
In the liquid pumping device of the present invention, the short pipe into which the tip of the float arm is inserted is fixed to the float, and the short pipe can be rotated on the shaft supported by the tip of the float arm. , The tip of the short tube abuts on the float arm to prohibit the rotation beyond a predetermined value. Therefore, according to the liquid level in the closed container, the float to which the short pipe is fixed first flows.
It swings up and down around the shaft supported by the torm, and after swinging a predetermined amount, the tip of the short tube comes into contact with the float arm. And then, in conjunction with the float,
The system is displaced, a snap operation occurs at a predetermined position, and the switching valve is rapidly switched. As described above, in the liquid pumping apparatus of the present invention, the float can be displaced up and down by a predetermined angle, that is, by a predetermined amount separately from the float arm, so that the connecting portion between the float and the float arm is short. However, the switching valve can be switched between two predetermined upper and lower positions.

【0012】[0012]

【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 apparatus according to a specific embodiment of the present invention. In FIG. 1, a liquid pressure feeding device 1 of the present embodiment is shown.
In the figure, a float 3, a switching valve 4, and a snap mechanism 5 are arranged in a closed container 2.

【0013】順次説明すると、密閉容器2は、側筒7に
底板8と頂板9が溶接された本体部10に蓋部11がボ
ルトによって結合され、内部に液体溜空間12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10
の下部に圧送液体流入口13,圧送液体排出口14が設
けられ、蓋部11に作動蒸気導入口15,作動蒸気排出
口16が設けられている。
To be described in order, the airtight container 2 comprises a main body 10 in which a bottom plate 8 and a top plate 9 are welded to a side cylinder 7, a lid 11 is connected by bolts, and a liquid storage space 12 is formed inside. is there. In this embodiment, the main body 10 of the closed container 2 is used.
A liquid feed inlet 13 and a liquid discharge outlet 14 are provided at the lower part of the space 11, and a working steam inlet 15 and a working steam outlet 16 are provided on the lid 11.

【0014】作動蒸気導入口15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、作動蒸気排出口16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 mounted inside the working steam inlet 15, in other words, inside the sealed container 2, and an exhaust valve 21 is mounted inside the working steam outlet 16. Here, the air supply valve 20 is constituted by 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 part of the valve case 22, there are provided four openings 26 for communicating the aforementioned through holes with the outside. The valve element 23 has a hemispherical shape, and is integrally attached to the tip of the lifting rod 24.

【0015】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、作動蒸気導入口11の中に
ねじ込まれている。そして弁体23は作動蒸気導入口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 pressure feeding device 1 of the present embodiment, the air supply valve 2
The leading end of the zero valve case 22 is screwed into the working steam inlet 11. And the valve body 23 is the working steam inlet 1
On one side, the lifting rod 24 passes through the through hole of the valve case 22 to the closed container 2 side, and comes into contact with 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.

【0016】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 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. A valve seat 32 is provided inside the through hole, and a valve body 30 held and fixed to the tip of an elevating rod 31 from below the valve seat 32 is brought into contact therewith. It opens and closes. Note that the valve shaft operating rod 28 and the elevating rod 31 are connected by a pin 33. The switching valve 4 is constituted by the air supply valve 20 and the exhaust valve 21. The exhaust valve 21 is closed when the air supply valve 20 is opened, and the exhaust valve 21 is opened when the air supply valve 20 is closed.

【0017】スナップ機構5は、フロ―トア―ム51、
副ア―ム52、圧縮状態のコイルバネ53、バネ受け部
材54,55からなるものであり、フロ―トア―ム51
が揺動軸56を介してブラケット57によって回転可能
に支持されている。ブラケット57は、密閉容器2の側
筒7に一体的に取り付けられ、軸58,59,60及び
前記した揺動軸56が掛け渡されて連結されたものであ
る。軸58,59は、それぞれフロ―トア―ム51の上
下限のストッパを兼ね、軸60は副ア―ム52のストッ
パを兼ねている。
The snap mechanism 5 has a float arm 51,
The auxiliary arm 52 includes a sub arm 52, a coil spring 53 in a compressed state, and spring receiving members 54 and 55.
Are rotatably supported by a bracket 57 via a swing shaft 56. The bracket 57 is integrally attached to the side cylinder 7 of the sealed container 2, and is connected with the shafts 58, 59, 60 and the swing shaft 56 as described above. The shafts 58 and 59 also serve as upper and lower stoppers for the float arm 51, respectively, and the shaft 60 also serves as a stopper for the sub arm 52.

【0018】フロ―トア―ム51は、平行に対向した2
枚の板よりなり、2枚の板の左端部が、フロ―ト3に溶
接によって固着された短管62内に挿入されている。そ
してフロ―トア―ム51と短管62が軸61によって回
転可能に連結されている。これにより、フロ―ト3は、
軸61を中心として上下に揺動し、短管62の先端上側
がフロ―トア―ム51の上面に当接した位置で時計回り
方向の回転が禁止され、短管62の先端下側がフロ―ト
ア―ム51の下面に当接した位置で反時計回り方向の回
転が禁止される。その後、フロ―トア―ム51がフロ―
ト3に連動して揺動軸56を中心として上下に揺動す
る。
The float arm 51 is composed of two opposing parallel members.
The left ends of the two plates are inserted into a short tube 62 fixed to the float 3 by welding. The float arm 51 and the short pipe 62 are rotatably connected by a shaft 61. Thus, Float 3
It swings up and down around the shaft 61, and the clockwise rotation is prohibited at a position where the upper end of the short tube 62 is in contact with the upper surface of the float arm 51, and the lower end of the short tube 62 is flowable. Rotation in the counterclockwise direction is prohibited at the position where it abuts on the lower surface of the arm 51. After that, the Float Arm 51
And swings up and down around the swing shaft 56 in conjunction with the third axis.

【0019】フロ―トア―ム51の右端部は下方に突出
し、その先端部には、前記した揺動軸56と平行な軸6
3が掛け渡され、この軸63にバネ受け部材54が回転
可能に支持されている。また、前記した揺動軸56に副
ア―ム52の上端部が回転可能に支持されている。副ア
―ム52は、平行に対向した2枚の板よりなり、夫々の
板は「T」字状をしている。副ア―ム52の下端部に
は、前記した揺動軸56および軸63と平行な軸64が
掛け渡され、この軸64にバネ受け部材55が回転可能
に支持されている。そして両バネ受け部材54,55の
間に圧縮状態のコイルバネ53が取り付けられている。
また副ア―ム52の上右端部に軸65が掛け渡され、弁
軸操作棒28の下端が連結されている。
The right end of the float arm 51 protrudes downward, and the front end thereof has a shaft 6 parallel to the swing shaft 56 described above.
3, and a spring receiving member 54 is rotatably supported on the shaft 63. The upper end of the sub arm 52 is rotatably supported by the swing shaft 56 described above. The sub arm 52 is composed of two plates facing each other in parallel, and each plate has a "T" shape. A shaft 64 parallel to the swing shaft 56 and the shaft 63 is wound around the lower end of the sub arm 52, and a spring receiving member 55 is rotatably supported on the shaft 64. A coil spring 53 in a compressed state is attached between the two spring receiving members 54 and 55.
A shaft 65 is wound around the upper right end of the sub arm 52, and the lower end of the valve shaft operating rod 28 is connected.

【0020】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15が高圧の蒸気源に接続
され、作動流体排出口16は、蒸気循環配管に接続され
る。また圧送液体流入口13は、外部から液体溜空間1
2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14
は、液体溜空間12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 15 is connected to a high-pressure steam source, and the working fluid discharge port 16 is connected to a steam circulation pipe. In addition, the pumping liquid inlet 13 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) which opens toward 2. On the other hand, pumping liquid discharge port 14
Is connected to a liquid pressure destination such as a boiler via a check valve (not shown) which opens from the liquid storage space 12 to the outside.

【0021】本実施例の液体圧送装置1の液体溜空間1
2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13から液体圧送装置1に流下して、液体溜
空間12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 inside 2, 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 13 to the liquid pumping device 1 and accumulates in the liquid storage space 12.

【0022】液体溜空間12内に溜まった復水によって
フロ―ト3が軸61を中心に時計回り方向に回転しなが
ら浮上し、短管62の先端上側がフロ―トア―ム51の
上面に当接する。すると、フロ―トア―ム51が揺動軸
56を中心に時計回り方向に回転し、コイルバネ53と
の連結部である軸63が左方に移動して揺動軸56と軸
64を結ぶ線に近付き、コイルバネ53は圧縮変形す
る。そしてフロ―ト3が更に上昇し、軸63が揺動軸5
6と軸64を結ぶ線上に並び、なおもフロ―ト3が上昇
して軸63が揺動軸56と軸64を結ぶ線よりも左方に
移動すると、コイルバネ53は急激に変形を回復し、副
ア―ム52が反時計回り方向に回転して軸64が右方に
スナップ移動する。その結果、副ア―ム52の軸65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。
The float 3 floats while rotating clockwise about the shaft 61 by the condensed water collected in the liquid storage space 12, and the upper end of the short pipe 62 is placed on the upper surface of the float arm 51. Abut Then, the float arm 51 rotates clockwise around the swing shaft 56, and the shaft 63, which is a connection portion with the coil spring 53, moves to the left, and a line connecting the swing shaft 56 and the shaft 64. , The coil spring 53 is compressed and deformed. Then, the float 3 is further raised, and the shaft 63 is moved to the swing shaft 5.
When the float 3 rises and the shaft 63 moves to the left from the line connecting the swinging shaft 56 and the shaft 64, the coil spring 53 rapidly recovers its deformation. Then, the sub arm 52 rotates counterclockwise, and the shaft 64 snaps to the right. As a result, the valve shaft operating rod 28 connected to the shaft 65 of the sub arm 52 moves upward, and the air supply valve 20
Is opened and the exhaust valve 21 is closed.

【0023】給気弁20が開放されると、密閉容器2内
に高圧の蒸気が導入され、内部の圧力が上昇し、液体溜
空間12に溜まった復水は、蒸気圧に押されて圧送液体
排出口14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 air supply valve 20 is opened, high-pressure steam is introduced into the closed vessel 2 and the internal pressure increases, and the condensate collected in the liquid storage space 12 is pushed by the vapor pressure to be pumped. The liquid is discharged from the liquid discharge port 14 to an external boiler or a waste heat utilization device via a check valve (not shown).

【0024】復水を排出した結果復水溜空間12内の水
位が低下すると、フロ―ト3が軸62を中心に反時計回
り方向に回転しながら降下し、短管62の先端下側がフ
ロ―トア―ム51の下面に当接する。すると、フロ―ト
ア―ム51が揺動軸56を中心に反時計回り方向に回転
し、コイルバネ53との連結部である軸63が右方に移
動して揺動軸56と軸64を結ぶ線に近付き、コイルバ
ネ53は圧縮変形する。そしてフロ―ト3が更に降下
し、軸63が揺動軸56と軸64を結ぶ線上に並び、な
おもフロ―ト3が降下して軸63が揺動軸56と軸64
を結ぶ線よりも右方に移動すると、コイルバネ53は急
激に変形を回復し、副ア―ム52が時計回り方向に回転
して軸64が左方にスナップ移動する。その結果、副ア
―ム52の軸65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。
When the water level in the condensate storage space 12 drops as a result of discharging the condensate water, the float 3 descends while rotating counterclockwise around the shaft 62, and the lower end of the short pipe 62 flows downward. It contacts the lower surface of the arm 51. Then, the float arm 51 rotates counterclockwise around the swing shaft 56, and the shaft 63, which is a connection portion with the coil spring 53, moves rightward to connect the swing shaft 56 and the shaft 64. When approaching the line, the coil spring 53 is compressed and deformed. Then, the float 3 further descends, and the shaft 63 is arranged on the line connecting the swing shaft 56 and the shaft 64, and the float 3 still descends and the shaft 63 is moved to the swing shaft 56 and the shaft 64.
When the coil spring 53 moves to the right from the line connecting, the coil spring 53 rapidly recovers from the deformation, the sub arm 52 rotates clockwise, and the shaft 64 snaps to the left. As a result, the valve shaft operating rod 28 connected to the shaft 65 of the sub arm 52 moves downward, the air supply valve 20 closes, and the exhaust valve 21 opens.

【0025】[0025]

【発明の効果】本発明の液体圧送装置では、フロ―トア
―ムの先端が挿入される短管をフロ―トに固着し、フロ
―トア―ムの先端に支持された軸に短管を回転可能に取
り付け、短管先端がフロ―トア―ムに当接して所定以上
の回転を禁止するようにしている。そのため、フロ―ト
が所定量揺動した後にフロ―トア―ムが変位する。その
ため、フロ―トア―ムとフロ―トの連結部を長くしなく
ても所定の上下二位置で切替え弁を切り換えることがで
きる優れた効果がある。
According to the liquid pumping device of the present invention, the short pipe into which the tip of the float arm is inserted is fixed to the float, and the short pipe is attached to the shaft supported by the tip of the float arm. It is rotatably mounted so that the tip of the short tube comes into contact with the float arm and prohibits rotation beyond a predetermined value. Therefore, the float arm is displaced after the float swings by a predetermined amount. Therefore, there is an excellent effect that the switching valve can be switched at two predetermined upper and lower positions without lengthening the connecting portion between the float arm and the float.

【図面の簡単な説明】[Brief description of the 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 apparatus according to a specific embodiment of the present invention.

【図2】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。
FIG. 2 is a front view of a snap mechanism of a conventional liquid pressure feeding device.

【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 作動蒸気導入口 13 作動蒸気排出口 16 圧送液体流入口 17 圧送液体排出口 20 給気弁 21 排気弁 61 軸 62 短管 DESCRIPTION OF SYMBOLS 2 Closed container 3 Float 4 Switching valve 5 Snap mechanism 11 Working steam inlet 13 Working steam outlet 16 Pumping liquid inlet 17 Pumping liquid outlet 20 Supply valve 21 Exhaust valve 61 Shaft 62 Short pipe

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 密閉容器に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が設けられ、
密閉容器内にフロ―トと切替え弁及びフロ―トア―ムを
有するスナップ機構が内蔵され、スナップ機構によって
フロ―トの上下二位置で切替え弁を切り換える液体圧送
装置において、フロ―トア―ムの先端が挿入される短管
をフロ―トに固着し、フロ―トア―ムの先端に支持され
た軸に短管を回転可能に取り付け、短管先端がフロ―ト
ア―ムに当接して所定以上の回転を禁止するようにした
ことを特徴とする液体圧送装置。
1. A closed vessel is provided with a working fluid inlet, a working fluid outlet, a pumping liquid inlet, and a pumping liquid outlet,
In a liquid pumping device in which a snap mechanism having a float, a switching valve, and a floating arm is incorporated in a closed container, and the switching mechanism switches the switching valve between upper and lower positions of the floating by the snap mechanism, The short pipe into which the tip is inserted is fixed to the float, and the short pipe is rotatably mounted on the shaft supported by the tip of the float arm, and the short pipe tip comes into contact with the float arm and is fixed. A liquid pumping device characterized in that the above rotation is prohibited.
JP11368295A 1994-10-14 1995-04-14 Liquid pumping device Expired - Fee Related JP3341200B2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP11368295A JP3341200B2 (en) 1995-04-14 1995-04-14 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
AU33000/95A AU681540B2 (en) 1994-10-14 1995-09-29 Pump and over-centre snap link
ES95202747T ES2194886T3 (en) 1994-10-14 1995-10-11 PUMP AND DISCENTRATED INSTANT CLOSURE CONNECTION.
DE1995629875 DE69529875T2 (en) 1994-10-14 1995-10-11 Pump and self-locking snap connection
BR9504388A BR9504388A (en) 1994-10-14 1995-10-11 Pump and over-center spring linkage
EP19950202747 EP0709607B1 (en) 1994-10-14 1995-10-11 Pump and over-center snap link
DK95202747T DK0709607T3 (en) 1994-10-14 1995-10-11 Pump and self-inhibiting snap connection
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
JP11368295A JP3341200B2 (en) 1995-04-14 1995-04-14 Liquid pumping device

Publications (2)

Publication Number Publication Date
JPH08285185A JPH08285185A (en) 1996-11-01
JP3341200B2 true JP3341200B2 (en) 2002-11-05

Family

ID=14618513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11368295A Expired - Fee Related JP3341200B2 (en) 1994-10-14 1995-04-14 Liquid pumping device

Country Status (1)

Country Link
JP (1) JP3341200B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5897988B2 (en) * 2012-05-25 2016-04-06 株式会社テイエルブイ Liquid pumping device

Also Published As

Publication number Publication date
JPH08285185A (en) 1996-11-01

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