JP2009299603A

JP2009299603A - Liquid pumping device

Info

Publication number: JP2009299603A
Application number: JP2008155889A
Authority: JP
Inventors: Tomomi Kubo; 知美久保
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-12-24
Anticipated expiration: 2028-06-13
Also published as: JP5107150B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid pumping device preventing reevaporation of condensate in a sealed vessel by promptly making liquid flow from a liquid inflow opening into the sealed vessel when an exhaust valve is opened to open an operating vapor exhaust port and an air supply valve is closed to close an operating vapor introducing port. <P>SOLUTION: The air supply valve 53 is provided in the operating vapor introducing port 11, the exhaust valve 47 is provided in the operating vapor exhaust port 13, and a pumping side check valve 59 is provided in a liquid discharge opening 17. A snap mechanism 5 is operated according to the upward/downward movement of a float 3 arranged inside of the sealed vessel 2 in order to snappingly move a power transmission shaft 46, thereby switching opening/closing of the air supply valve 20 and exhaust valve 21. The liquid inflow opening 16 is opened/closed by the exhaust valve 47. The liquid inflow opening 16 is opened when the exhaust valve 47 is opened to open the operating vapor exhaust port 13 and the air supply valve 53 is closed to close the operating vapor introducing port 11, and the liquid inflow opening 16 is opened when the exhaust valve 47 is closed to close the operating vapor exhaust port 13 and the air supply valve 53 is opened to open the operating vapor introducing port 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、温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、各種蒸気使用装置で発生した復水をボイラーや廃熱利用箇所に送る装置として特に適するものである。 The present invention relates to a liquid pumping device that pumps liquid such as hot water or fuel. The liquid pressure feeding device of the present invention is particularly suitable as a device for sending condensate generated in various steam using devices to a boiler or a waste heat utilization site.

従来の液体圧送装置は、密閉容器に作動蒸気導入口と作動蒸気排出口と液体流入口及び液体排出口が設けられ、作動蒸気導入口に給気弁が設けられ、作動蒸気排出口に排気弁が設けられ、液体流入口に密閉容器への液体の流れだけを許容する流入側逆止弁が設けられ、液体排出口に液体圧送先への液体の流れだけを許容する圧送側逆止弁が設けられ、密閉容器内に配置されたフロートの昇降に応じてスナップ機構を動作させて動力伝達軸をスナップ移動させることにより、動力伝達軸に連結された給気弁と排気弁の開閉を切り換えて、初めに排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口することにより液体を液体流入口から密閉容器内に流入させ、次いで排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口することにより密閉容器内に溜った液体を液体排出口から液体圧送先へ圧送するものである。 In a conventional liquid pumping device, a closed vessel is provided with a working steam inlet, a working steam outlet, a liquid inlet and a liquid outlet, a supply valve is provided at the working steam inlet, and an exhaust valve is provided at the working steam outlet. An inflow check valve that allows only the flow of liquid to the sealed container is provided at the liquid inlet, and a pressure check valve that allows only the flow of liquid to the liquid pumping destination is provided at the liquid discharge port. By switching the power supply shaft and the exhaust valve connected to the power transmission shaft by switching the power transmission shaft by snapping the power transmission shaft by operating the snap mechanism according to the lift of the float arranged in the sealed container First, the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed, so that liquid flows from the liquid inlet into the sealed container, and then the exhaust valve is closed. Close the steam outlet and open the air supply valve The liquid collected in the sealed vessel by opening the working steam inlet port is for pumping the liquid outlet to the liquid pumping destination.

上記従来の液体圧送装置は、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに、密閉容器内の復水が再蒸発するために密閉容器内の蒸気の排気に時間が掛かり、流入側逆止弁の開弁が遅れて密閉容器内への液体の流入が遅い問題点があった。密閉容器内への液体の流入が遅いと、単位時間当たりの液体圧送能力が小さくなる。
特開平８−１４５２９０ The above-mentioned conventional liquid pumping device has a closed container because the condensate in the sealed container re-evaporates when the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed. There was a problem that it took time to exhaust the steam inside, and the opening of the inflow side check valve was delayed, so that the liquid flow into the sealed container was slow. When the flow of the liquid into the sealed container is slow, the liquid pumping capacity per unit time becomes small.
JP-A-8-145290

解決しようとする課題は、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに、液体を液体流入口から密閉容器内に素早く流入させて密閉容器内の復水の再蒸発を防止できる液体圧送装置を提供することである。 The problem to be solved is that when the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed, the liquid is quickly introduced into the sealed container from the liquid inlet. A liquid pumping device capable of preventing re-evaporation of condensate in a container is provided.

本発明は、密閉容器に作動蒸気導入口と作動蒸気排出口と液体流入口及び液体排出口が設けられ、作動蒸気導入口に給気弁が設けられ、作動蒸気排出口に排気弁が設けられ、液体排出口に液体圧送先への液体の流れだけを許容する圧送側逆止弁が設けられ、密閉容器内に配置されたフロートの昇降に応じてスナップ機構を動作させて動力伝達軸をスナップ移動させることにより、動力伝達軸に連結された給気弁と排気弁の開閉を切り換えて、初めに排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口することにより液体を液体流入口から密閉容器内に流入させ、次いで排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口することにより密閉容器内に溜った液体を液体排出口から液体圧送先へ圧送する液体圧送装置において、液体流入口を前記排気弁で開閉し、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに液体流入口を開口し、排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口したときに液体流入口を閉口することを特徴とする。 In the present invention, the closed vessel is provided with a working steam inlet, a working steam outlet, a liquid inlet and a liquid outlet, a supply valve is provided at the working steam inlet, and an exhaust valve is provided at the working steam outlet. The pressure check valve that allows only the flow of liquid to the liquid pressure destination is provided at the liquid discharge port, and the power transmission shaft is snapped by operating the snap mechanism according to the lifting and lowering of the float placed in the sealed container. By moving, the opening and closing of the supply valve and exhaust valve connected to the power transmission shaft are switched. First, the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed. The liquid was allowed to flow into the sealed container from the liquid inlet, and then the exhaust valve was closed, the working steam discharge port was closed, the supply valve was opened, and the working steam introduction port was opened to collect the liquid in the sealed container. Liquid is pumped from the liquid outlet In a liquid pumping device for pumping, the liquid inlet is opened and closed by the exhaust valve, the exhaust valve is opened to open the working steam outlet, the supply valve is closed and the working steam inlet is closed. The liquid inlet is closed when the exhaust valve is closed and the working steam discharge port is closed and the supply valve is opened and the working steam introduction port is opened.

本発明は、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに、排気弁で液体流入口を素早く開口して密閉容器内の蒸気を短時間に排気することにより、密閉容器内へ液体を素早く流入させることができ、単位時間当たりの液体圧送能力を大きくできるという優れた効果を生じる。 In the present invention, when the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed, the liquid inlet is quickly opened by the exhaust valve to shorten the steam in the sealed container. By exhausting in time, the liquid can be quickly flowed into the sealed container, and an excellent effect that the liquid pumping capacity per unit time can be increased is produced.

本発明の液体圧送装置は、液体流入口を前記排気弁で開閉し、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに液体流入口を開口し、排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口したときに液体流入口を閉口ものである。そのため、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに、排気弁で液体流入口を素早く開口することができ、密閉容器内の蒸気と液体流入口の液体とを置換させて密閉容器内の復水の再蒸発を防止することができる。そのため、密閉容器内の蒸気を短時間に排気して密閉容器内へ液体を素早く流入させることができる。 The liquid pumping device of the present invention opens and closes the liquid inlet with the exhaust valve, opens the exhaust valve to open the working steam discharge port, closes the air supply valve, and closes the working steam introduction port. The liquid inlet is closed when it is opened, the exhaust valve is closed, the working steam discharge port is closed, the supply valve is opened, and the working steam introduction port is opened. Therefore, when the exhaust valve is opened, the working steam discharge port is opened, the supply valve is closed, and the working steam introduction port is closed, the liquid inlet can be quickly opened by the exhaust valve, and the steam in the sealed container The liquid at the liquid inlet can be replaced to prevent re-evaporation of the condensate in the sealed container. Therefore, the vapor in the sealed container can be exhausted in a short time to allow the liquid to flow into the sealed container quickly.

上記の技術的手段の具体例を示す実施例を説明する。図１は本発明の実施例の液体圧送装置の断面図、図２はＡ−Ａ線を加入した図１のスナップ機構部分の拡大断面図、図３は図２のＡ−Ａ線断面図である。本実施例の液体圧送装置１は密閉容器２内にフロート３と切替え弁４とスナップ機構５及び排液弁６が配されたものである。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。蓋部８には作動蒸気導入口１１，作動蒸気排出口１３，液体流入口１６，液体排出口１７が設けられている。 An embodiment showing a specific example of the above technical means will be described. 1 is a cross-sectional view of a liquid pumping apparatus according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a snap mechanism portion of FIG. 1 joined with an AA line, and FIG. 3 is a cross-sectional view of the AA line of FIG. is there. The liquid pumping apparatus 1 according to the present embodiment is configured such that a float 3, a switching valve 4, a snap mechanism 5, and a drain valve 6 are arranged in a sealed container 2. The sealed container 2 has a main body portion 7 and a lid portion 8 connected by screws (not shown), and a liquid reservoir space 10 is formed inside. The lid 8 is provided with a working steam inlet 11, a working steam outlet 13, a liquid inlet 16, and a liquid outlet 17.

スナップ機構５は、密閉容器２内に支持された揺動軸２１と、揺動軸２１の周りに回転するフロートアーム２２及び副アーム２３と、フロートアーム２２に支持された第１の軸２４と、副アーム２３に支持された第２の軸２５と、第１及び第２の軸２４，２５の間に取り付けられた圧縮状態のコイルバネ２６とから構成される。揺動軸２１はブラケット２７によって密閉容器２内に支持されている。ブラケット２７は２枚の板よりなり、夫々の板が図示しないネジによって密閉容器２の蓋部８に一体的に取り付けられている。 The snap mechanism 5 includes a swing shaft 21 supported in the sealed container 2, a float arm 22 and a sub arm 23 that rotate around the swing shaft 21, and a first shaft 24 supported by the float arm 22. The second shaft 25 is supported by the sub-arm 23, and the coil spring 26 is in a compressed state attached between the first and second shafts 24, 25. The swing shaft 21 is supported in the closed container 2 by a bracket 27. The bracket 27 is composed of two plates, and each plate is integrally attached to the lid portion 8 of the sealed container 2 by screws (not shown).

フロートアーム２２は平行に対向した２枚の板よりなり、２枚の板の左端部に揺動軸２１と平行な第１の軸２４が掛け渡され、第１の軸２４にフロート３に固着された取付部３０が連結されている。また第１の軸２４に第１バネ受け２８が回転可能に支持されている。フロートアーム２２はほぼ中央部が揺動軸２１によって回転可能に支持されている。そのためフロートアーム２２はフロート３の浮沈に追従して揺動軸２１を中心として上下に揺動する。 The float arm 22 is composed of two plates facing each other in parallel, and a first shaft 24 parallel to the swing shaft 21 is stretched over the left end portions of the two plates, and is fixed to the float 3 on the first shaft 24. The attached mounting portions 30 are connected. A first spring receiver 28 is rotatably supported on the first shaft 24. The float arm 22 is supported at its central portion so as to be rotatable by the swing shaft 21. Therefore, the float arm 22 swings up and down around the swing shaft 21 following the float 3 sinking.

副アーム２３はほぼ中央部が揺動軸２１に回転可能に支持されている。副アーム２３は平行に対向した２枚の板よりなり、２枚の板の左端部に揺動軸２１と平行な第２の軸２５が掛け渡されている。第２の軸２５に第２バネ受け２９が回転可能に支持されている。第１及び第２バネ受け２８，２９の間に圧縮状態のコイルバネ２６が配置されている。 The sub-arm 23 is supported at its central portion so as to be rotatable on the swing shaft 21. The sub arm 23 is composed of two plates facing each other in parallel, and a second shaft 25 parallel to the swing shaft 21 is stretched over the left end portions of the two plates. A second spring receiver 29 is rotatably supported on the second shaft 25. A compressed coil spring 26 is disposed between the first and second spring receivers 28 and 29.

排液弁６は、フロートアーム２２に支持された第３の軸３１と、第３の軸３１に取り付けられた排液弁アーム３２と、排液弁アーム３２に取り付けられ密閉容器２内と液体排出口１７の間を連通遮断する排液弁体３３とから構成される。第３の軸３１は揺動軸２１と平行にフロートアーム２２に掛け渡され、揺動軸２１と第２の軸２５の間に位置している。第３の軸３１に排液弁アーム３２の上端が回転可能に取り付けられている。第３の軸３１の動きを妨げないように副アーム２３に窓３４が開けられている。排液弁アーム３２は２枚の板よりなり、下端に揺動軸２１と平行な弁体取付軸３５が掛け渡され、弁体取付軸３５に排液弁口３６を開閉する排液弁体３３の球心が回転可能に支持されている。排液弁口３６は液体排出口１７の密閉容器２内側端に取り付けられた排液弁座３７に形成されている。 The drainage valve 6 includes a third shaft 31 supported by the float arm 22, a drainage valve arm 32 attached to the third shaft 31, a liquid attached to the drainage valve arm 32, and the liquid inside the sealed container 2. The drain valve body 33 is configured to cut off communication between the discharge ports 17. The third shaft 31 extends over the float arm 22 in parallel with the swing shaft 21 and is located between the swing shaft 21 and the second shaft 25. An upper end of the drain valve arm 32 is rotatably attached to the third shaft 31. A window 34 is opened in the sub arm 23 so as not to hinder the movement of the third shaft 31. The drain valve arm 32 is composed of two plates, and a valve body mounting shaft 35 parallel to the swing shaft 21 is spanned on the lower end, and the drain valve body for opening and closing the drain valve port 36 on the valve body mounting shaft 35. 33 ball centers are rotatably supported. The drainage valve port 36 is formed in a drainage valve seat 37 attached to the inner end of the sealed container 2 of the liquid discharge port 17.

排液弁アーム３２に左方に突出する当接部３８が設けられ、当接部３８にボルト状の調節部材３９がネジ結合により取り付けられている。フロートアーム２２は排液弁体３３が排液弁口３６を閉じるときに、調節部材３９を介して排液弁アーム３２の当接部３８に当接し、調節部材３９と排液弁アーム３２を介して排液弁体３３を排液弁口３６に押し付けることができる。調節部材３９の当接部３８へのねじ込み量を調節することにより、排液弁体３３が排液弁口３６を閉じるときに、フロートアーム２２が調節部材３９と排液弁アーム３２を介して確実に排液弁体３３を排液弁口３６に押し付けることができる。フロートアーム２２が調節部材３９に当接することにより、フロートアーム２２の反時計回り方向への回転が規制されるので、調節部材３９がフロートアーム２２の下限ストッパとなる。 The drain valve arm 32 is provided with a contact portion 38 that protrudes to the left, and a bolt-shaped adjustment member 39 is attached to the contact portion 38 by screw connection. When the drain valve body 33 closes the drain valve port 36, the float arm 22 contacts the contact portion 38 of the drain valve arm 32 through the adjustment member 39, and the adjustment member 39 and the drain valve arm 32 are connected to each other. The drainage valve element 33 can be pressed against the drainage valve port 36. When the drainage valve element 33 closes the drainage valve port 36 by adjusting the screwing amount of the adjustment member 39 into the contact portion 38, the float arm 22 moves through the regulation member 39 and the drainage valve arm 32. The drain valve body 33 can be reliably pressed against the drain valve port 36. Since the float arm 22 abuts on the adjustment member 39, the rotation of the float arm 22 in the counterclockwise direction is restricted, so that the adjustment member 39 serves as a lower limit stopper for the float arm 22.

ブラケット２７には揺動軸２１の右下方にストッパ軸４０が掛け渡され、ストッパ軸４０がブラケット２７によって密閉容器２内に支持されている。フロートアーム２２にはストッパ軸４０が貫通する窓４１が開けられ、窓４１の右端部がストッパ軸４０に当接することにより、フロート３の浮上に伴うフロートアーム２２の時計回り方向への回転範囲が規制されるので、ストッパ軸４０がフロートアーム２２の上限ストッパとなる。副アーム２３にはストッパ軸４０が貫通する窓４２が開けられ、窓４２の右端部がストッパ軸４０に当接することにより、フロート３の降下による副アーム２３の時計回り方向への回転範囲が規制されるので、ストッパ軸４０が副アーム２３の下限ストッパとなる。フロートアーム２２の右端にはフロートアーム２２の２枚の板を連結する連結軸４３が掛け渡されている。 A stopper shaft 40 is stretched over the bracket 27 to the lower right of the swing shaft 21, and the stopper shaft 40 is supported in the sealed container 2 by the bracket 27. A window 41 through which the stopper shaft 40 passes is opened in the float arm 22, and the right end portion of the window 41 abuts against the stopper shaft 40, so that the rotation range of the float arm 22 in the clockwise direction when the float 3 floats is increased. Since it is regulated, the stopper shaft 40 becomes the upper limit stopper of the float arm 22. A window 42 through which the stopper shaft 40 passes is opened in the sub arm 23, and the right end portion of the window 42 abuts on the stopper shaft 40, thereby restricting the rotation range of the sub arm 23 in the clockwise direction due to the lowering of the float 3. Therefore, the stopper shaft 40 becomes the lower limit stopper of the sub arm 23. A connecting shaft 43 that connects the two plates of the float arm 22 is stretched over the right end of the float arm 22.

副アーム２３にはストッパ軸４０の右上方に伝達軸取付軸４５が掛け渡され、伝達軸取付軸４５に動力伝達軸４６の下端が回転可能に連結されている。動力伝達軸４６の上端は切替え弁４に連結されている。切替え弁４は、下端が動力伝達軸４６に連結された排気弁４７と、排気弁４７の下部を除いて排気弁４７を内部に収容した給排気ケース４８と、給気弁５３とから構成される。排気弁４７の上端に小径の操作棒４９が一体に形成されている。密閉容器２の蓋部８に図示しないネジにより取り付けられた給排気ケース４８には作動蒸気導入口１１の給気弁口５０が形成され、給気弁口５０の下方の右側方に作動蒸気排出口１３の排気弁口５１が形成され、給気弁口５０の下方の左側方に液体流入口１６の流入弁口１９が形成されている。排気弁口５１は排気弁４７の肩部５２で開閉され、流入弁口１９は排気弁４７の肩部２０で開閉される。給気弁口５０の作動蒸気導入口１１側に給気弁口５０を開閉する球状の給気弁５３が配置され、給気弁５３は排気弁４７の操作棒４９で開弁操作される。排気弁４７の肩部５２が排気弁口５１を閉じ肩部２０が流入弁口１９を閉じることにより、副アーム２３の反時計回り方向への回転が規制されるので、排気弁４７の肩部５２と肩部２０が副アーム２３の上限ストッパとなる。ネジ５４によって密閉容器２の蓋部８に一体的に取り付けられている偏向板５５により排気弁４７が回り止めされている。給気弁５３と排気弁４７で切替え弁４が構成され、給気弁５３が開いて作動蒸気導入口１１が開口されると排気弁４７が閉じて作動蒸気排出口１３と液体流入口１６が閉口され、給気弁５３が閉じて作動蒸気導入口１１が閉口されると排気弁４７が開いて作動蒸気排出口１３と液体流入口１６が開口される。 A transmission shaft mounting shaft 45 is stretched over the sub arm 23 to the upper right of the stopper shaft 40, and the lower end of the power transmission shaft 46 is rotatably connected to the transmission shaft mounting shaft 45. The upper end of the power transmission shaft 46 is connected to the switching valve 4. The switching valve 4 includes an exhaust valve 47 whose lower end is connected to the power transmission shaft 46, an air supply / exhaust case 48 in which the exhaust valve 47 is accommodated except for a lower portion of the exhaust valve 47, and an air supply valve 53. The A small-diameter operation rod 49 is integrally formed at the upper end of the exhaust valve 47. A supply / exhaust case 48 attached to the lid portion 8 of the hermetic container 2 with a screw (not shown) is provided with an intake valve port 50 for the operating steam inlet port 11. An exhaust valve port 51 of the outlet 13 is formed, and an inflow valve port 19 of the liquid inlet 16 is formed on the left side below the air supply valve port 50. The exhaust valve port 51 is opened and closed by the shoulder 52 of the exhaust valve 47, and the inflow valve port 19 is opened and closed by the shoulder 20 of the exhaust valve 47. A spherical air supply valve 53 that opens and closes the air supply valve port 50 is disposed on the side of the operation steam introduction port 11 of the air supply valve port 50, and the air supply valve 53 is opened by an operation rod 49 of the exhaust valve 47. Since the shoulder portion 52 of the exhaust valve 47 closes the exhaust valve port 51 and the shoulder portion 20 closes the inflow valve port 19, the counter arm 23 is prevented from rotating counterclockwise. 52 and the shoulder 20 serve as an upper limit stopper for the sub arm 23. The exhaust valve 47 is prevented from rotating by a deflection plate 55 that is integrally attached to the lid portion 8 of the sealed container 2 by a screw 54. The switching valve 4 is constituted by the supply valve 53 and the exhaust valve 47. When the supply valve 53 is opened and the working steam inlet 11 is opened, the exhaust valve 47 is closed and the working steam discharge port 13 and the liquid inlet 16 are connected. When the air supply valve 53 is closed and the working steam inlet 11 is closed, the exhaust valve 47 is opened and the working steam outlet 13 and the liquid inlet 16 are opened.

排液弁座３７の液体排出口１７側端に圧送側逆止弁口５８が形成され、圧送側逆止弁口５８を液体圧送先側へ向かって開く圧送側逆止弁５９が排液弁座３７に取り付けられている。 A pressure-feed-side check valve port 58 is formed at the liquid discharge port 17 side end of the drainage valve seat 37, and a pressure-feed-side check valve 59 that opens the pressure-feed-side check valve port 58 toward the liquid pressure-feed destination side is a drainage valve. Attached to the seat 37.

次に本実施例の液体圧送装置１の作用について、一連の動作手順を追うことによって説明する。液体圧送装置１の外部配管は、作動蒸気導入口１１が高圧の蒸気源に接続され、作動蒸気排出口１３が液体発生源側に接続され、液体流入口１６が液体発生源に接続され、液体排出口１７が液体圧送先に接続される。 Next, the operation of the liquid pumping apparatus 1 of this embodiment will be described by following a series of operation procedures. The external piping of the liquid pumping apparatus 1 has a working steam inlet 11 connected to a high-pressure steam source, a working steam outlet 13 connected to the liquid generation source side, a liquid inlet 16 connected to the liquid generation source, and a liquid The discharge port 17 is connected to the liquid pumping destination.

密閉容器２内の液位が低い状態において、フロート３は底部に位置し、第３の軸３１と伝達軸取付軸４５は夫々下方に変位している。そのため、排液弁アーム３２と動力伝達軸４６は夫々下方に変位している。このとき、排液弁体３３は排液弁口３６を閉じて液体排出口１７を閉口し、給気弁５３は給気弁口５０を閉じて作動蒸気導入口１１を閉口し、排気弁体４７は排気弁口５１と流入弁口１９を開いて作動蒸気排出口１３と液体流入口１６を開口している。また、圧送側逆止弁５９は圧送側逆止弁口５８を閉じている。液体発生源側の液体が液体流入口１６から密閉容器２内に流下して溜り、密閉容器２内の液位上昇によりフロート３が浮上すると、フロートアーム２２が揺動軸２１を中心に時計回り方向に回転し、第３の軸３１が上動して排液弁アーム３２が上動する。この排液弁アーム３２の上動により排液弁体３３が回転しながら上動して排液弁口３６を開く。 In a state where the liquid level in the hermetic container 2 is low, the float 3 is located at the bottom, and the third shaft 31 and the transmission shaft mounting shaft 45 are respectively displaced downward. Therefore, the drain valve arm 32 and the power transmission shaft 46 are displaced downward. At this time, the drainage valve body 33 closes the drainage valve port 36 and closes the liquid discharge port 17, the air supply valve 53 closes the air supply valve port 50 and closes the working steam inlet 11, and the exhaust valve body 47 opens the exhaust valve port 51 and the inflow valve port 19 and opens the working steam discharge port 13 and the liquid inlet port 16. The pressure-feed-side check valve 59 closes the pressure-feed-side check valve port 58. When the liquid on the liquid source side flows and accumulates in the sealed container 2 from the liquid inlet 16, and the float 3 rises due to the rise in the liquid level in the sealed container 2, the float arm 22 rotates clockwise about the swing shaft 21. , The third shaft 31 moves up, and the drain valve arm 32 moves up. By the upward movement of the drain valve arm 32, the drain valve body 33 is rotated and moved upward to open the drain valve port 36.

一方スナップ機構５側では、フロートアーム２２が揺動軸２１を中心に時計回り方向に回転すると、コイルバネ２６との連結部である第１の軸２４が上動して揺動軸２１と第２の軸２５を結ぶ線の延長線に近付き、コイルバネ２６は圧縮変形する。そしてフロート３が更に浮上して第１の軸２４が揺動軸２１と第２の軸２５を結ぶ線の延長線よりも上方に移動すると、コイルバネ２６は急激に変形を回復し、副アーム２３が反時計回り方向に回転して伝達軸取付軸４５が上方にスナップ移動する。その結果、伝達軸取付軸４５に連結された動力伝達軸４６を介して排気弁体４７が上動し、排気弁口５１と流入弁口１９を閉じて作動蒸気排出口１３と液体流入口１６を閉口すると共に、排気弁体４７の上動過程で給気弁体５３を上動させて給気弁口５０を開いて作動蒸気導入口１１を開口する。 On the other hand, on the snap mechanism 5 side, when the float arm 22 rotates in the clockwise direction around the swing shaft 21, the first shaft 24, which is a connecting portion with the coil spring 26, moves upward to move the swing shaft 21 and the second shaft. The coil spring 26 is compressed and deformed as it approaches the extension line of the line connecting the shafts 25. When the float 3 further floats and the first shaft 24 moves above the extension of the line connecting the swing shaft 21 and the second shaft 25, the coil spring 26 suddenly recovers from deformation, and the sub arm 23 Rotates counterclockwise, and the transmission shaft mounting shaft 45 snaps upward. As a result, the exhaust valve body 47 is moved upward via the power transmission shaft 46 connected to the transmission shaft mounting shaft 45, the exhaust valve port 51 and the inflow valve port 19 are closed, and the working steam discharge port 13 and the liquid inflow port 16 are closed. In addition, the air supply valve body 53 is moved upward in the process of moving up the exhaust valve body 47 to open the air supply valve port 50 and open the working steam introduction port 11.

排気弁口５１と流入弁口１９が閉じられ、給気弁口５０が開かれると、作動蒸気導入口１１から密閉容器２内に高圧蒸気が導入され、密閉容器２内の圧力が上昇する。これにより、圧送側逆止弁５９が圧送側逆止弁口５８を開き、密閉容器２内に溜った液体を液体排出口１７から液体圧送先に圧送する。 When the exhaust valve port 51 and the inflow valve port 19 are closed and the air supply valve port 50 is opened, high-pressure steam is introduced into the sealed container 2 from the working steam introduction port 11 and the pressure in the sealed container 2 rises. As a result, the pressure-feed-side check valve 59 opens the pressure-feed-side check valve port 58 and pumps the liquid accumulated in the sealed container 2 from the liquid discharge port 17 to the liquid pressure-feed destination.

液体を圧送した結果、密閉容器２内の液位が低下してフロート３が降下すると、フロートアーム２２が揺動軸２１を中心に反時計回り方向に回転し、第３の軸３１が下動して排液弁アーム３２が下動する。この排液弁アーム３２の下動により排液弁体３３が回転しながら下動して排液弁口３６を閉じて液体排出口１７を閉口する。 As a result of the liquid being pumped, when the liquid level in the sealed container 2 is lowered and the float 3 is lowered, the float arm 22 rotates counterclockwise about the swing shaft 21 and the third shaft 31 moves downward. As a result, the drain valve arm 32 moves downward. Due to the downward movement of the drain valve arm 32, the drain valve body 33 moves downward while rotating to close the drain valve port 36 and close the liquid discharge port 17.

一方スナップ機構５側では、フロートアーム２２が揺動軸２１を中心に反時計回り方向に回転すると、コイルバネ２６との連結部である第１の軸２４が下動して揺動軸２１と第２の軸２５を結ぶ線の延長線に近付き、コイルバネ２６は圧縮変形する。そしてフロート３が更に降下して第１の軸２４が揺動軸２１と第２の軸２５を結ぶ線の延長線よりも下方に移動すると、コイルバネ２６は急激に変形を回復し、副アーム２３が時計回り方向に回転して伝達軸取付軸４５が下方にスナップ移動する。その結果、伝達軸取付軸４５に連結された動力伝達軸４６を介して排気弁体４７が下動し、排気弁口５１と流入弁口１９を開いて作動蒸気排出口１３と液体流入口１６を開口すると共に、排気弁体４７の下動過程で給気弁体５３が下動して給気弁口５０を閉じて作動蒸気導入口１１を閉口する。 On the other hand, on the snap mechanism 5 side, when the float arm 22 rotates counterclockwise about the swing shaft 21, the first shaft 24, which is a connecting portion with the coil spring 26, moves downward to move the swing shaft 21 and the first shaft. The coil spring 26 is compressed and deformed by approaching an extension of the line connecting the two shafts 25. When the float 3 further descends and the first shaft 24 moves below the extension of the line connecting the swing shaft 21 and the second shaft 25, the coil spring 26 suddenly recovers from deformation, and the sub arm 23 Rotates clockwise and the transmission shaft mounting shaft 45 snaps downward. As a result, the exhaust valve body 47 moves downward via the power transmission shaft 46 connected to the transmission shaft mounting shaft 45, opens the exhaust valve port 51 and the inflow valve port 19, and activates the working steam discharge port 13 and the liquid inflow port 16. As the exhaust valve body 47 moves downward, the air supply valve body 53 moves downward to close the air supply valve port 50 and close the working steam inlet 11.

排気弁口５１と流入弁口１９が開かれ、給気弁口５０が閉じられると、密閉容器２内の蒸気と液体流入口１６側の復水との置換により密閉容器２内の復水の再蒸発が防止される。これにより、密閉容器２内の蒸気を短時間に排気して密閉容器２内へ液体を素早く流入させることができる。 When the exhaust valve port 51 and the inflow valve port 19 are opened and the air supply valve port 50 is closed, the condensate in the sealed container 2 is replaced by the replacement of the vapor in the sealed container 2 and the condensate on the liquid inlet 16 side. Re-evaporation is prevented. Thereby, the vapor | steam in the airtight container 2 can be exhausted in a short time, and a liquid can be made to flow in into the airtight container 2 quickly.

本発明の実施例の液体圧送装置の断面図。Sectional drawing of the liquid pumping apparatus of the Example of this invention. Ａ−Ａ線を加入した図１のスナップ機構部分の拡大断面図。The expanded sectional view of the snap mechanism part of FIG. 1 which joined the AA line. 図２のＡ−Ａ線断面図。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.

符号の説明Explanation of symbols

１液体圧送装置
２密閉容器
３フロート
４切替え弁
５スナップ機構
７本体部
８蓋部
１０液体溜空間
１１作動蒸気導入口
１３作動蒸気排出口
１６液体流入口
１７液体排出口
１９流入弁口
４６動力伝達軸
４７排気弁
５３給気弁
５９圧送側逆止弁
DESCRIPTION OF SYMBOLS 1 Liquid pumping apparatus 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 7 Main body part 8 Lid part 10 Liquid storage space 11 Working steam inlet 13 Working steam outlet 16 Liquid inlet 17 Liquid outlet 19 Inlet valve mouth 46 Power transmission Shaft 47 Exhaust valve 53 Supply valve 59 Pressure-side check valve

Claims

密閉容器に作動蒸気導入口と作動蒸気排出口と液体流入口及び液体排出口が設けられ、作動蒸気導入口に給気弁が設けられ、作動蒸気排出口に排気弁が設けられ、液体排出口に液体圧送先への液体の流れだけを許容する圧送側逆止弁が設けられ、密閉容器内に配置されたフロートの昇降に応じてスナップ機構を動作させて動力伝達軸をスナップ移動させることにより、動力伝達軸に連結された給気弁と排気弁の開閉を切り換えて、初めに排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口することにより液体を液体流入口から密閉容器内に流入させ、次いで排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口することにより密閉容器内に溜った液体を液体排出口から液体圧送先へ圧送する液体圧送装置において、液体流入口を前記排気弁で開閉し、排気弁を開いて作動蒸気排出口を開口し給気弁を閉じて作動蒸気導入口を閉口したときに液体流入口を開口し、排気弁を閉じて作動蒸気排出口を閉口し給気弁を開いて作動蒸気導入口を開口したときに液体流入口を閉口することを特徴とする液体圧送装置。
The closed container is provided with a working steam inlet, a working steam outlet, a liquid inlet and a liquid outlet, a working valve inlet is provided with an air supply valve, a working steam outlet is provided with an exhaust valve, and a liquid outlet Is provided with a pressure check valve that allows only the flow of liquid to the liquid pressure destination, and operates the snap mechanism in response to the lifting and lowering of the float arranged in the sealed container to snap the power transmission shaft. , By switching the opening and closing of the supply valve and exhaust valve connected to the power transmission shaft, first open the exhaust valve, open the working steam discharge port, close the supply valve and close the working steam inlet port The liquid accumulated in the sealed container is then drained by closing the exhaust valve, closing the working steam outlet, opening the supply valve, and opening the working steam inlet. Pump from the outlet to the liquid pumping destination In the body pressure feeding device, when the liquid inlet is opened and closed with the exhaust valve, the exhaust valve is opened to open the working steam outlet, the supply valve is closed and the working steam inlet is closed, and the liquid inlet is opened. A liquid pumping device characterized in that the liquid inlet is closed when the exhaust valve is closed and the working steam discharge port is closed and the air supply valve is opened and the working steam introduction port is opened.