JPH09250693A - Liquid feeding device - Google Patents

Liquid feeding device

Info

Publication number
JPH09250693A
JPH09250693A JP8741096A JP8741096A JPH09250693A JP H09250693 A JPH09250693 A JP H09250693A JP 8741096 A JP8741096 A JP 8741096A JP 8741096 A JP8741096 A JP 8741096A JP H09250693 A JPH09250693 A JP H09250693A
Authority
JP
Japan
Prior art keywords
liquid
pressure
port
check valve
working fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8741096A
Other languages
Japanese (ja)
Inventor
Masahisa Hiroya
広谷  昌久
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 JP8741096A priority Critical patent/JPH09250693A/en
Publication of JPH09250693A publication Critical patent/JPH09250693A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a liquid feeding device with a simple structure by reducing the number of part items. SOLUTION: An operation fluid leading-in port 11, an operation fluid exhaust port 13, and a connecting hole 16 are provided to a sealed container 2. A float 3 and a change-over valve 4 are provided in the sealed container 2. A check valve 6 is connected in the connecting hole 16. To the check valve 6, a liquid entrance 64, a liquid flowing-in port 65, and a liquid exhaust port 66 are provided, and a flowing-in port side check valve element 69 which permits the flowing from the liquid flowing-in port 65 to the inner side, but prohibits the flowing in the reverse direction, and an exhaust port side check valve 73 which permits the flowing from the inner side to the liquid exhaust port 66, but prohibits the flowing in the reverse direction, are provided in the check valve 6.

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は、水や燃料等の液体
を圧送する液体圧送装置に関するものである。本発明の
液体圧送装置は、蒸気配管系で発生した復水を一旦集
め、この復水をボイラ―や廃熱利用装置に送る装置とし
て特に適するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid pumping device 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溜め、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。
A liquid pumping device used in a condensate recovery system temporarily stores condensate in a closed container and then switches a switching valve to introduce a high-pressure working fluid such as steam into the closed container. The condensate in the closed container is forcibly discharged by the pressure.

【0004】以下従来技術の液体圧送装置について説明
する。図3は従来技術の液体圧送装置の一部断面斜視図
である。図3において100は従来技術の液体圧送装置
を示す。液体圧送装置100は、密閉容器101内にフ
ロ―ト120、切替え弁130、スナップ機構140等
が内蔵されたものである。
A conventional liquid pressure-feeding device will be described below. FIG. 3 is a partial cross-sectional perspective view of a liquid pumping device of the related art. In FIG. 3, reference numeral 100 designates a conventional liquid pumping device. The liquid pressure-feeding device 100 includes a closed container 101, a float 120, a switching valve 130, a snap mechanism 140, and the like.

【0005】密閉容器101は、底近くに圧送液体流入
口102と、圧送液体排出口103が設けられ、それぞ
れに逆止弁105,106が取り付けられている。ここ
で逆止弁105は密閉容器101内への復水の流入を許
す向きに取り付けられている。一方逆止弁106は、密
閉容器101から外部への復水の圧送を許す向きに取り
付けられている。
The closed container 101 is provided with a pressure-feeding liquid inflow port 102 and a pressure-feeding liquid discharge port 103 near the bottom, and check valves 105 and 106 are attached to the respective ports. Here, the check valve 105 is attached in a direction that allows the condensate to flow into the closed vessel 101. On the other hand, the check valve 106 is installed in a direction that allows the pressure-feeding of the condensed water from the closed container 101 to the outside.

【0006】また密閉容器101の頂部には作動流体導
入口108と作動流体排出口109が設けられており、
給気弁110と排気弁111からなる切替え弁130が
取り付けられている。ここで給気弁110,および排気
弁111はいずれも昇降棒112,113を上下移動す
ることによって弁の開閉を行うものであるが、給気弁1
10は昇降棒112を上げた時に開となり、排気弁11
1は昇降棒113を上げた時に閉となる。そして昇降棒
112,113は連設板115によって並列に結合され
ており、連設板115を上下することにより給気弁11
0,排気弁111は同時に開閉される。
A working fluid inlet 108 and a working fluid outlet 109 are provided at the top of the closed vessel 101.
A switching valve 130 including an air supply valve 110 and an exhaust valve 111 is attached. Here, the air supply valve 110 and the exhaust valve 111 both open and close by vertically moving the lifting rods 112 and 113.
10 is opened when the lifting rod 112 is raised, and the exhaust valve 11 is opened.
1 is closed when the lifting bar 113 is raised. The elevating rods 112 and 113 are connected in parallel by the connecting plate 115, and the intake valve 11 is moved by moving the connecting plate 115 up and down.
0, the exhaust valve 111 is opened and closed at the same time.

【0007】従来技術の液体圧送装置100は、圧送液
体流入口102が逆止弁105を介して蒸気の負荷に接
続され、圧送液体排出口103が逆止弁106を介して
廃熱利用装置に接続される。そして作動流体導入口10
8は高圧流体源に接続される。液体圧送装置100で
は、密閉容器101内に復水が無い場合は、フロ―ト1
20は下の位置にあり、連設板115は下がっている。
そのため、給気弁110は作動流体導入口108を塞い
でいる。一方排気弁111は作動流体排出口109を開
放している。
In the liquid pumping apparatus 100 of the prior art, the pumping liquid inlet 102 is connected to the vapor load via the check valve 105, and the pumping liquid discharge port 103 is connected to the waste heat utilization device via the check valve 106. Connected. And working fluid inlet 10
8 is connected to a high pressure fluid source. In the liquid pumping apparatus 100, if there is no condensed water in the closed container 101, the float 1
20 is in the lower position, and the connecting plate 115 is in the lower position.
Therefore, the air supply valve 110 blocks the working fluid introduction port 108. On the other hand, the exhaust valve 111 opens the working fluid outlet 109.

【0008】液体圧送装置100が接続される蒸気の負
荷内で復水が発生すると、復水は逆止弁105から密閉
容器101内に流れ込んで溜まる。そして、復水の量が
増加するのに従って、フロ―ト120が上昇し、これに
連れてア―ム118の一端が上昇する。そしてア―ム1
18が一定の位置を越えると、スナップ機構140が反
転し、弁軸操作棒121が上に移動し、連設板115が
持ち上げられる。
When condensate is generated in the steam load to which the liquid pumping device 100 is connected, the condensate flows from the check valve 105 into the closed container 101 and accumulates therein. Then, as the amount of condensed water increases, the float 120 rises, and with this, one end of the arm 118 rises. And arm 1
When 18 exceeds a certain position, the snap mechanism 140 reverses, the valve shaft operating rod 121 moves upward, and the connecting plate 115 is lifted.

【0009】すると給気弁110は作動流体導入口10
8を開放する。一方この時排気弁111は作動流体排出
口109を閉じるので、密閉容器101内の圧力が上昇
し、当該圧力に押されて圧送液体排出口103から復水
が圧送される。
Then, the air supply valve 110 is connected to the working fluid inlet 10
Open 8. On the other hand, at this time, the exhaust valve 111 closes the working fluid discharge port 109, so that the pressure in the closed container 101 rises and is pressed by the pressure, and the condensate is pumped from the pumped liquid discharge port 103.

【0010】[0010]

【発明が解決しようとする課題】従来技術の液体圧送装
置は、密閉容器内の液面の高さに応じて切替え弁を開閉
することにより、効率良く液体の圧送を行うことができ
るものである。しかしながら、密閉容器に圧送液体流入
口と圧送液体排出口を設けなければならず、また圧送液
体流入口と圧送液体排出口のそれぞれに逆止弁を設けな
ければならず、部品点数が多く構造が複雑であると言う
問題点があった。
The liquid pumping device of the prior art is capable of pumping liquid efficiently by opening and closing the switching valve according to the height of the liquid level in the closed container. . However, the closed container must be provided with a pressure-feeding liquid inlet and a pressure-feeding liquid discharge port, and a check valve must be provided for each of the pressure-feeding liquid inlet and the pressure-feeding liquid discharge port. There was a problem that it was complicated.

【0011】本発明は、従来技術の上記した問題点に注
目し、部品点数を減少して簡単な構造の液体圧送装置を
提供することを課題とする。
It is an object of the present invention to provide a liquid pumping device having a simple structure by reducing the number of parts by paying attention to the above problems of the prior art.

【0012】[0012]

【課題を解決するための手段】本発明の特徴は、密閉容
器に作動流体導入口と作動流体排出口及び連結口が設け
られ、上記密閉容器内にフロ―トと該フロ―トに連結さ
れ上記作動流体導入口と作動流体排出口の開閉を切り換
える切替え弁が内蔵され、上記連結口に逆止弁が連結さ
れ、上記逆止弁は圧送液体流入口と圧送液体排出口及び
上記連結口に連結される圧送液体出入口が設けられ、上
記逆止弁内に圧送液体流入口から内部への流れは許しそ
の逆方向の流れを止める流入口側逆止弁体と内部から圧
送液体排出口への流れは許しその逆方向の流れを止める
排出口側逆止弁体が内蔵され、密閉容器内に溜った液体
の液面の高さに応じて、初めに作動流体排出口を開き作
動流体導入口を閉じて圧送液体流入口から密閉容器内に
液体を流入させ、次いで作動流体排出口を閉じ作動流体
導入口を開いて密閉容器内に溜った液体を圧送液体排出
口から圧送する液体圧送装置にある。
A feature of the present invention is that a closed container is provided with a working fluid introducing port, a working fluid discharge port and a connecting port, and the float is connected to the float in the closed container. A switching valve for switching between opening and closing of the working fluid inlet and the working fluid outlet is built in, and a check valve is connected to the connecting port, and the check valve is connected to the pressure-feeding liquid inlet, the pressure-feeding liquid outlet and the connecting port. A pressure-feeding liquid inlet / outlet to be connected is provided, and a flow from the pressure-feeding liquid inlet to the inside of the check valve is allowed and the flow in the opposite direction is stopped, and a check valve body on the inlet side and from the inside to the pressure-feeding liquid discharge port Allows the flow and stops the flow in the opposite direction.The discharge side check valve body is built in, and the working fluid discharge port is opened first according to the height of the liquid level of the liquid accumulated in the closed container. Closed and let the liquid flow into the closed container from the pressure-feeding liquid inlet, Certain liquid collected in the working fluid discharge port to close the working fluid inlet port to open a closed container with are in the liquid pumping device for pumping the pumped fluid outlet.

【0013】[0013]

【発明の実施の形態】本発明の液体圧送装置は、従来公
知のそれと同様に、密閉容器内に溜った液体の液面の高
さに応じて、切替え弁を開閉することにより液体の圧送
を行う。即ち、初めに作動流体排出口を開き作動流体導
入口を閉じて圧送液体流入口から密閉容器内に液体を流
入させ、次いで作動流体排出口を閉じ作動流体導入口を
開いて密閉容器内に溜った液体を圧送液体排出口から圧
送する。
BEST MODE FOR CARRYING OUT THE INVENTION Like the conventionally known liquid pumping apparatus of the present invention, the liquid is pumped by opening and closing a switching valve in accordance with the height of the liquid level of the liquid accumulated in a closed container. To do. That is, first, the working fluid discharge port is opened and the working fluid introduction port is closed to allow the liquid to flow into the closed container from the pressure-feeding liquid inflow port, then the working fluid discharge port is closed and the working fluid introduction port is opened to collect in the closed container. The liquid is pumped from the liquid feed port.

【0014】そして本発明の液体圧送装置は、密閉容器
に設けられた連結口に逆止弁が連結され、この逆止弁に
圧送液体流入口と圧送液体排出口及び圧送液体出入口が
設けられると共に、圧送液体流入口から内部への流れは
許しその逆方向の流れを止める流入口側逆止弁体と内部
から圧送液体排出口への流れは許しその逆方向の流れを
止める排出口側逆止弁体が内蔵されたものである。その
ため、密閉容器に設けられていた圧送液体流入口と圧送
液体排出口の一方を必要とせず、また圧送液体流入口と
圧送液体排出口のそれぞれに設けられていた逆止弁の一
方を必要とせず、部品点数を減少して簡単な構造の液体
圧送装置を作ることができる。
In the liquid pressure-feeding device of the present invention, a check valve is connected to a connection port provided in the closed container, and the check valve is provided with a pressure-feeding liquid inlet, a pressure-feeding liquid discharge port, and a pressure-feeding liquid inlet / outlet. , Allows flow from the pumped liquid inlet to the inside and stops the flow in the opposite direction. Check valve body on the inlet side and allows flow from the inside to the pumped liquid discharge port and stops the flow in the opposite direction. It has a built-in valve body. Therefore, one of the pressure-feeding liquid inlet and the pressure-feeding liquid outlet provided in the closed container is not required, and one of the check valves provided in each of the pressure-feeding liquid inlet and the pressure-feeding liquid outlet is not required. In addition, the number of parts can be reduced and a liquid pumping device having a simple structure can be manufactured.

【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。また図2は、図1の液体圧送装置の逆止弁の
拡大断面図である。図1において、本実施例の液体圧送
装置1は、密閉容器2内にフロ―ト3、切替え弁4及び
スナップ機構5が配置され、逆止弁6が連結されたもの
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. 2 is an enlarged cross-sectional view of the check valve of the liquid pumping device of FIG. In FIG. 1, the liquid pumping device 1 of the present embodiment is one in which a float 3, a switching valve 4 and a snap mechanism 5 are arranged in a closed container 2 and a check valve 6 is connected.

【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、3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,連結口16が設
けられている。
Explaining in sequence, the closed container 2 has a main body 7
And the lid portion 8 are connected by screws (not shown), and a liquid storage space 10 is formed therein. In the present embodiment, the main body 7 of the closed container 2 is a mere container, and the characteristic components of the present embodiment are generally provided on the lid 8 of the closed container 2. That is, the lid 8 is provided with three openings, specifically, a working fluid introduction port 11, a working fluid discharge port 13, and a connection port 16.

【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 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.

【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
ネジ込まれている。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. And the valve body 23 is the working fluid 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.

【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 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. The valve shaft operating rod 28 and the lifting 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.

【0020】連結口16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 connecting port 16 is provided at a position corresponding to the lower part 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は下記の副ア―ム5
2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 following sub arm 5
Also serves as a stopper for 2.

【0023】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―34の軸40が嵌合してい
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 sub arm 52 includes a coil spring 54 in a compressed state, a spring receiving member 55, and a spring receiving member 56. The front arm 51 is composed of two plates facing each other in parallel,
A groove 57 is provided at the left end of the two plates. The right end of the float arm 51 is rotatably supported by the first shaft 37 described above. Also the front arm 51
The shaft 40 of the lever 34 described above is fitted in the groove 57. 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の右端部は下方に脹
れ、その下端部には、前記した第1の軸37と平行な第
2の軸58が掛け渡され、バネ受け部材55が第2の軸
58によって回転可能に支持されている。また、前記し
た第1の軸37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、夫々の板は逆「L」字状をしている。副ア
―ム52の下端部には、前記した第1及び第2の軸3
7,58と平行な第3の軸59が掛け渡され、バネ受け
部材56が第3の軸59によって回転可能に支持されて
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。また副ア―ム
52の上左端部に軸60が掛け渡され、弁軸操作棒28
の下端が連結されている。
The right end of the float arm 51 expands downward, and the second shaft 58 parallel to the above-mentioned first shaft 37 is stretched over the lower end thereof, and the spring receiving member 55 is arranged at the first end. It is rotatably supported by two shafts 58. The upper end of the sub arm 52 is rotatably supported by the first shaft 37. The sub arm 52 is composed of two plates facing each other in parallel, and each plate has an inverted "L" shape. At the lower end of the sub arm 52, the first and second shafts 3 described above are provided.
A third shaft 59, which is parallel to 7, 58, is bridged, and the spring bearing member 56 is rotatably supported by the third shaft 59. The compressed coil spring 54 is attached between the spring receiving members 55 and 56. Further, a shaft 60 is wound around the upper left end of the sub arm 52, and the valve shaft operating rod 28
The lower ends of are connected.

【0025】連結口16に逆止弁6が連結されている。
逆止弁6は、図2に拡大して示すように、本体61と、
本体61にねじ結合された端部材62,63で弁ケ―シ
ングが形成されている。本体1の側部に圧送液体出入口
64が開口され、この圧送液体出入口64の回りに連結
口16への連結用雄ねじが形成されている。端部材62
に圧送液体流入口65が形成され、端部材63に圧送液
体排出口66が形成されている。
The check valve 6 is connected to the connection port 16.
The check valve 6 includes a main body 61, as shown in an enlarged scale in FIG.
A valve casing is formed by end members 62 and 63 screwed to the main body 61. A pressure-feeding liquid inlet / outlet port 64 is opened at a side portion of the main body 1, and a male screw for connection to the connection port 16 is formed around the pressure-feeding liquid inlet / outlet port 64. End member 62
A pressure-feeding liquid inflow port 65 is formed at the end, and a pressure-feeding liquid discharge port 66 is formed at the end member 63.

【0026】端部材62の下端面は弁座67として機能
する。弁座67は、下方からコイルバネ68で上方に付
勢されたディスク状の流入口側逆止弁体69が当接して
開閉されるものである。本体61の内壁に流入口側逆止
弁体69を摺動案内する複数個のリブ70が形成され、
それぞれのリブ70の間が流体の通路となる。またリブ
70の段部にコイルバネ68の一端が保持されている。
流入口側逆止弁体69は、圧送液体流入口65から下方
への流れは許しその逆方向の流れを止めるもので、圧送
液体流入口65側の圧力が液体溜空間10側の圧力及び
コイルバネ68の弾性力に打勝つと開く。
The lower end surface of the end member 62 functions as a valve seat 67. The valve seat 67 is opened and closed by contacting a disc-shaped inlet-side check valve body 69 biased upward by a coil spring 68 from below. A plurality of ribs 70 for slidingly guiding the check valve body 69 on the inlet side are formed on the inner wall of the main body 61.
A fluid passage is formed between the ribs 70. Further, one end of the coil spring 68 is held by the step portion of the rib 70.
The inlet-side check valve body 69 allows the flow downward from the pressure-feeding liquid inlet 65 and stops the flow in the opposite direction. The pressure on the side of the pressure-feeding liquid inlet 65 is the pressure on the side of the liquid reservoir space 10 and the coil spring. Opens when you overcome the elastic force of 68.

【0027】本体61の下部に弁座71が形成される。
弁座71は、下方からコイルバネ72で上方に付勢され
たディスク状の排出口側逆止弁体73が当接して開閉さ
れるものである。本体61の内壁に排出口側逆止弁体7
3を摺動案内する複数個のリブ74が形成され、それぞ
れのリブ74の間が流体の通路となる。コイルバネ72
の一端は端部材63の内壁に形成された複数個のリブ7
5で保持されている。排出口側逆止弁体73は、上方か
ら圧送液体排出口66への流れは許しその逆方向の流れ
を止めるもので、液体溜空間10側の圧力が圧送液体排
出口66側の圧力及びコイルバネ72の弾性力に打勝つ
と開く。
A valve seat 71 is formed at the bottom of the body 61.
The valve seat 71 is opened and closed by a disk-shaped check valve body 73 on the outlet side, which is biased upward from below by a coil spring 72. The check valve body 7 on the outlet side is provided on the inner wall of the main body 61.
A plurality of ribs 74 for slidingly guiding the ribs 3 are formed, and the spaces between the ribs 74 serve as fluid passages. Coil spring 72
One end of each of the ribs 7 is formed on the inner wall of the end member 63.
5 is held. The discharge port side check valve body 73 allows the flow from above to the pressure-feeding liquid discharge port 66 and stops the flow in the opposite direction, and the pressure on the liquid reservoir space 10 side is the pressure on the pressure-feeding liquid discharge port 66 side and the coil spring. Opens when you overcome the elastic force of 72.

【0028】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が蒸気循環配管に接続され
る。また連結口16に連結された逆止弁6の圧送液体流
入口65が蒸気使用装置等の負荷に接続され、圧送液体
排出口66がボイラ―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. The pressure-feeding liquid inlet 65 of the check valve 6 connected to the connection port 16 is connected to a load such as a steam using device, and the pressure-feeding liquid outlet 66 is connected to a liquid pressure destination such as a boiler.

【0029】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65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 device 1 of this embodiment
If there is no condensate within 0, the float 3 is located at the bottom as shown in FIG. At this time, the air supply valve 20 of the switching valve 4 is closed, and the exhaust valve 21 is open. When condensate is generated in the load of the steam using device or the like, the condensate flows down from the pressure-feeding liquid inflow port 65 to the liquid pressure-feeding device 1 and accumulates in the liquid storage space 10.

【0030】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、レバ―34の回転による軸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し、コイルバネ
54との連結部である第2の軸58が右方に移動して第
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を結ぶ線よりも右方に移
動すると、コイルバネ54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第3の軸59が左方
にスナップ移動する。その結果、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2
0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 in the clockwise direction around the shaft 35, and the rotation of the lever 34 causes the shaft 40 to rotate.
Float arm 51 is linked to the downward movement of the
Rotates in the counterclockwise direction around the shaft 37, and the second shaft 58, which is the connecting portion with the coil spring 54, moves to the right to approach the line connecting the first shaft 37 and the third shaft 59. The coil spring 54 is compressed and deformed. Then, the float 3 further rises, the second shaft 58 is lined up on the line connecting the first shaft 37 and the third shaft 59, and the float 3 still rises and the second shaft 58 rises.
Is moved to the right of the line connecting the first shaft 37 and the third shaft 59, the coil spring 54 rapidly recovers its deformation, and the sub arm 52 rotates clockwise to rotate the third shaft. 59 snaps to the left. As a result, the axis 60 of the sub arm 52
The valve shaft operation rod 28 connected to the
0 is opened and the exhaust valve 21 is closed.

【0031】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66から外部のボイラ―や廃熱利用装置へ
排出される。
When the working fluid introduction 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 66 to an external boiler or a waste heat utilization device.

【0032】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、レバ―3
4の回転による軸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
回転し、コイルバネ54との連結部である第2の軸58
が左方に移動して第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
線よりも左方に移動すると、コイルバネ54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
第3の軸59が右方にスナップ移動する。その結果、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 lever 3
The float arm 51 rotates clockwise around the first shaft 37 in conjunction with the upward movement of the shaft 40 due to the rotation of the second shaft 4 and the second shaft which is a connecting portion with the coil spring 54. 58
Moves to the left to approach the line connecting the first shaft 37 and the third shaft 59, and 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 it moves to the left of the line connecting the first shaft 37 and the third shaft 59, the coil spring 54 rapidly recovers its deformation and the sub arm 52 rotates counterclockwise to rotate the third shaft 59. Snaps to the right. As a result, the valve shaft operating rod 28 connected to the shaft 60 of the sub arm 52 moves downward, the air supply valve 20 closes, and the exhaust valve 21 opens.

【0033】[0033]

【発明の効果】本発明の液体圧送装置では、密閉容器に
設けた連結口に逆止弁が連結し、この逆止弁に圧送液体
流入口と圧送液体排出口及び圧送液体出入口を設け、圧
送液体流入口から内部への流れは許しその逆方向の流れ
を止める流入口側逆止弁体と弁室から圧送液体排出口へ
の流れは許しその逆方向の流れを止める排出口側逆止弁
体を内蔵している。そのため密閉容器に設けていた圧送
液体流入口と圧送液体排出口の一方を必要とせず、また
圧送液体流入口と圧送液体排出口のそれぞれに設けてい
た逆止弁の一方を必要としない。そのため本発明の液体
圧送装置は、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 pressure-feeding device of the present invention, the check valve is connected to the connection port provided in the closed container, and the check valve is provided with the pressure-feeding liquid inlet, the pressure-feeding liquid discharge port, and the pressure-feeding liquid inlet / outlet. A check valve on the inlet side that allows the flow from the liquid inlet to the inside and stops the flow in the reverse direction.Allows a flow from the valve chamber and the valve chamber to the liquid delivery outlet that pumps the fluid and stops the flow in the opposite direction. It has a built-in body. Therefore, one of the pressure-feeding liquid inlet and the pressure-feeding liquid outlet provided in the closed container is not required, and one of the check valves provided in each of the pressure-feeding liquid inlet and the pressure-feeding liquid outlet is not required. Therefore, the liquid pumping device of the present invention has an excellent effect of reducing the number of parts and simplifying the structure.

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

【図2】図1の逆止弁の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of the check valve of FIG.

【図3】従来技術の液体圧送装置の一部断面斜視図であ
る。
FIG. 3 is a perspective view, partly in section, 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 6 逆止弁 11 作動流体導入口 13 作動流体排出口 16 連結口 20 給気弁 21 排気弁 64 圧送液体出入口 65 圧送液体流入口 66 圧送液体排出口 69 流入口側逆止弁体 73 排出口側逆止弁体 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 6 Check valve 11 Working fluid inlet port 13 Working fluid outlet port 16 Connection port 20 Air supply valve 21 Exhaust valve 64 Pressure feeding liquid inlet / outlet 65 Pressure feeding liquid inlet port 66 Pressure feeding liquid discharge Outlet 69 Inlet side check valve body 73 Outlet side check valve body

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 密閉容器に作動流体導入口と作動流体排
出口及び連結口が設けられ、上記密閉容器内にフロ―ト
と該フロ―トに連結され上記作動流体導入口と作動流体
排出口の開閉を切り換える切替え弁が内蔵され、上記連
結口に逆止弁が連結され、上記逆止弁は圧送液体流入口
と圧送液体排出口及び上記連結口に連結される圧送液体
出入口が設けられ、上記逆止弁内に圧送液体流入口から
内部への流れは許しその逆方向の流れを止める流入口側
逆止弁体と内部から圧送液体排出口への流れは許しその
逆方向の流れを止める排出口側逆止弁体が内蔵され、密
閉容器内に溜った液体の液面の高さに応じて、初めに作
動流体排出口を開き作動流体導入口を閉じて圧送液体流
入口から密閉容器内に液体を流入させ、次いで作動流体
排出口を閉じ作動流体導入口を開いて密閉容器内に溜っ
た液体を圧送液体排出口から圧送することを特徴とする
液体圧送装置。
1. A closed container having a working fluid introduction port, a working fluid discharge port and a connection port, the inside of the closed container being connected to the float and the working fluid introduction port and the working fluid discharge port. A switching valve for switching between opening and closing is built in, a check valve is connected to the connecting port, and the check valve is provided with a pressure-feeding liquid inflow port, a pressure-feeding liquid discharge port, and a pressure-feeding liquid inlet / outlet connected to the connection port, Flow from the pressure-feeding liquid inlet to the inside of the check valve is allowed, and the flow in the opposite direction is stopped, and flow from the inlet-side check valve body and the pressure-feeding liquid discharge port is allowed, and the flow in the opposite direction is stopped. A check valve body on the discharge side is built in, and the working fluid discharge port is first opened and the working fluid introduction port is closed according to the height of the liquid level of the liquid accumulated in the sealed container. Liquid inside, then close the working fluid outlet and the working flow A liquid pressure-feeding device, wherein the body introduction port is opened and the liquid accumulated in the closed container is pressure-fed from the pressure-feeding liquid discharge port.
JP8741096A 1996-03-15 1996-03-15 Liquid feeding device Pending JPH09250693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8741096A JPH09250693A (en) 1996-03-15 1996-03-15 Liquid feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8741096A JPH09250693A (en) 1996-03-15 1996-03-15 Liquid feeding device

Publications (1)

Publication Number Publication Date
JPH09250693A true JPH09250693A (en) 1997-09-22

Family

ID=13914118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8741096A Pending JPH09250693A (en) 1996-03-15 1996-03-15 Liquid feeding device

Country Status (1)

Country Link
JP (1) JPH09250693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008309287A (en) * 2007-06-15 2008-12-25 Tlv Co Ltd Liquid pumping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008309287A (en) * 2007-06-15 2008-12-25 Tlv Co Ltd Liquid pumping device

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