JP2011241856A - Liquid pumping device - Google Patents

Liquid pumping device Download PDF

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JP2011241856A
JP2011241856A JP2010112169A JP2010112169A JP2011241856A JP 2011241856 A JP2011241856 A JP 2011241856A JP 2010112169 A JP2010112169 A JP 2010112169A JP 2010112169 A JP2010112169 A JP 2010112169A JP 2011241856 A JP2011241856 A JP 2011241856A
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liquid
valve
discharge port
inlet
close
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Tomomi Kubo
知美 久保
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TLV Co Ltd
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TLV Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To restrain hammer on a liquid pumping destination side when an exhaust valve is opened and an air supply valve is closed.SOLUTION: The air supply valve 53 is provided at an operating vapor introduction port 11, the exhaust valves 47 are provided at an operating vapor discharge port 13 and a liquid inflow port 16, and a liquid discharge port switching valve 6 is provided at a liquid discharge port 17. A float 3 and a snap mechanism 5 are incorporated in a sealed container 2. The snap mechanism 5 includes a float arm 22, a sub-arm 23 and a coil spring 26. The air supply valve 53 and the exhaust valves 47 are connected to the sub-arm 23 via a power transmission shaft 46, while the liquid discharge port switching valve 6 is connected to the power transmission shaft 46. When the exhaust valves 47 are opened to open the operating vapor discharge port 13 and the liquid inflow port 16 and the air supply valve 53 is closed to close the operating vapor introduction port 11, the liquid discharge port switching valve 6 is closed to close the liquid discharge port 17. When the exhaust valves 47 are closed to close the operating vapor discharge port 13 and the liquid inflow port 16 and the air supply valve 53 is opened to open the operating vapor introduction port 11, the liquid discharge port switching valve 6 is opened to open the liquid discharge port 17.

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、例えば特許文献１に開示されている。これは、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流体の流れだけを許容する圧送側逆止弁が設けられ、密閉容器内にフロートとスナップ機構が内蔵され、スナップ機構は、密閉容器内に支持された揺動軸と、揺動軸の周りに回転するフロートアーム及び副アームと、フロートアームに支持された第１の軸と、副アームに支持された第２の軸と、第１及び第２の軸の間に取り付けられたバネを有し、フロートがフロートアームに連結され、給気弁と排気弁が動力伝達軸を介して副アームに連結され、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、給気弁と排気弁の開閉を切り換えて、初めに排気弁を開き給気弁を閉じ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給気弁を開く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ものである。 A conventional liquid pumping device is disclosed in Patent Document 1, for example. This is because 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. A pressure check valve that allows only the flow of fluid to the liquid pressure destination is provided at the liquid outlet, and a float and snap mechanism are built in the sealed container. The snap mechanism is supported by the sealed container. An axis, a float arm and a sub arm rotating around the swing axis, a first axis supported by the float arm, a second axis supported by the sub arm, and the first and second axes. It has a spring attached in between, the float is connected to the float arm, the air supply valve and the exhaust valve are connected to the sub arm through the power transmission shaft, and the power is operated by operating the snap mechanism according to the lift of the float By snapping the transmission shaft Switch between opening and closing of the air supply valve and the exhaust valve, first opening the exhaust valve and closing the air supply valve to allow liquid to flow into the sealed container from the liquid inlet, then close the exhaust valve and open the air supply valve In the liquid pumping device that pumps the liquid accumulated in the sealed container from the liquid discharge port to the liquid pumping destination, the liquid inlet is opened and closed with the exhaust valve, the exhaust valve is opened, the working vapor discharge port is opened, and the air supply valve is When closed and the working steam inlet is closed, the liquid inlet is opened.When the exhaust valve is closed, the working steam outlet is closed, the supply valve is opened and the working steam inlet is opened, the liquid inlet is closed. To do.

特開２００９−２９９６０３JP2009-299603

上記従来の液体圧送装置は、排気弁を開き給気弁を閉じたときに、圧送側逆止弁の閉弁が遅れて作動蒸気導入口から密閉容器内に導入された作動蒸気の一部が圧送側逆止弁の下流側に流出するために、圧送側逆止弁の下流側でハンマを起こす問題点があった。 In the conventional liquid pumping device, when the exhaust valve is opened and the air supply valve is closed, a part of the working steam introduced into the sealed container from the working steam inlet is delayed due to the closing of the pumping side check valve. Since the oil flows out downstream of the pressure check valve, there is a problem that a hammer is caused downstream of the pressure check valve.

したがって本発明が解決しようとする課題は、排気弁を開き給気弁を閉じたときに、液体圧送先側でハンマを起こすことのない液体圧送装置を提供することである。 Therefore, the problem to be solved by the present invention is to provide a liquid pumping device that does not cause hammer on the liquid pumping destination side when the exhaust valve is opened and the air supply valve is closed.

上記の課題を解決するために、本発明の液体圧送装置は、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、密閉容器内にフロートとスナップ機構が内蔵され、スナップ機構は、密閉容器内に支持された揺動軸と、揺動軸の周りに回転するフロートアーム及び副アームと、フロートアームに支持された第１の軸と、副アームに支持された第２の軸と、第１及び第２の軸の間に取り付けられたバネを有し、フロートがフロートアームに連結され、給気弁と排気弁が動力伝達軸を介して副アームに連結され、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、給気弁と排気弁の開閉を切り換えて、初めに排気弁を開き給気弁を閉じ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給気弁を開く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であって、液体流入口を排気弁で開閉し、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ものにおいて、液体排出口を開閉する液体排出口開閉弁を動力伝達軸に連結し、排気弁を開いて作動蒸気排出口と液体流入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排出口開閉弁を閉じて液体排出口を閉口し、排気弁を閉じて作動蒸気排出口と液体流入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排出口開閉弁を開いて液体排出口を開口することを特徴とする。 In order to solve the above-described problems, the liquid pumping apparatus of the present invention is provided with an operating steam inlet, an operating steam outlet, a liquid inlet and a liquid outlet in a sealed container, and an air supply valve at the operating steam inlet. Provided, an exhaust valve is provided at the working steam discharge port, a float and a snap mechanism are incorporated in the sealed container, and the snap mechanism rotates around the swing shaft supported in the sealed container. A float arm and a sub-arm, a first shaft supported by the float arm, a second shaft supported by the sub-arm, and a spring attached between the first and second shafts. Is connected to the float arm, the air supply valve and the exhaust valve are connected to the sub arm via the power transmission shaft, and the power transmission shaft is snapped by operating the snap mechanism according to the lift of the float. Open and close the valve and exhaust valve First, the exhaust valve is first opened and the supply valve is closed, so that the liquid flows into the sealed container from the liquid inlet, and then the liquid accumulated in the sealed container is discharged by closing the exhaust valve and opening the supply valve. A liquid pumping device that pumps from the outlet to the liquid pumping destination, opens and closes the liquid inlet with an exhaust valve, opens the exhaust valve, opens the working steam discharge port, closes the air supply valve, and closes the working steam inlet Sometimes the liquid inlet is opened, the exhaust valve is closed, the working steam outlet is closed, the supply valve is opened, and the working steam inlet is opened. The liquid discharge port opening / closing valve is connected to the power transmission shaft, the exhaust valve is opened, the working steam discharge port and the liquid inlet are opened, the air supply valve is closed, and the working steam introduction port is closed. Closes the liquid discharge port, closes the exhaust valve, and operates Characterized by opening the liquid outlet opens the liquid discharge opening and closing valve when opened working steam inlet gas outlet and a liquid inlet opening the closed and air supply valve.

本発明によれば、液体排出口を開閉する液体排出口開閉弁を動力伝達軸に連結し、排気弁を開いて作動蒸気排出口と液体流入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排出口開閉弁を閉じて液体排出口を閉口し、排気弁を閉じて作動蒸気排出口と液体流入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排出口開閉弁を開いて液体排出口を開口するものであるので、排気弁を開いて作動蒸気排出口と液体流入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排出口開閉弁を素早く閉じて液体排出口を素早く閉口することができ、作動蒸気導入口から密閉容器内に導入された作動蒸気が液体排出口開閉弁の下流側に流出することを防止でき、液体圧送先側でハンマを起こすことがないという効果を奏する。 According to the present invention, the liquid discharge port opening / closing valve for opening and closing the liquid discharge port is connected to the power transmission shaft, the exhaust valve is opened, the working steam discharge port and the liquid inlet are opened, the supply valve is closed, and the working steam is introduced When the port is closed, the liquid discharge port on-off valve is closed to close the liquid discharge port, the exhaust valve is closed to close the working vapor discharge port and the liquid inlet, and the supply valve is opened to open the working vapor inlet Since the liquid discharge opening / closing valve is sometimes opened to open the liquid discharge opening, the exhaust valve is opened, the working vapor discharge port and the liquid inlet are opened, the supply valve is closed, and the working vapor introduction port is closed. Sometimes the liquid discharge opening / closing valve can be quickly closed to quickly close the liquid discharge opening, and the working vapor introduced into the sealed container from the working vapor inlet can flow out downstream of the liquid discharge opening / closing valve. It can be prevented and it will not cause hammer on the liquid pumping side. Achieve the results.

本発明の実施の形態に係わる液体圧送装置の断面図である。It is sectional drawing of the liquid pumping apparatus concerning embodiment of this invention.

以下、本発明の実施の形態について、図１を参照して説明する。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。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は図示しないブラケットによって密閉容器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。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バネ受けが回転可能に支持されている。第１及び第２バネ受けの間に圧縮状態のコイルバネ２６が配置されている。ブラケットには揺動軸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。 Hereinafter, an embodiment of the present invention will be described with reference to FIG. 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. 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 sealed container 2 by a bracket (not shown). 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 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. The sub-arm 23 is supported by the swing shaft 21 so that the center portion thereof is rotatable. 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 is rotatably supported on the second shaft 25. A compressed coil spring 26 is disposed between the first and second spring receivers. A stopper shaft 40 is stretched over the bracket to the lower right of the swing shaft 21, and the stopper shaft 40 is supported in the sealed container 2 by the bracket. 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の中間部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。液体排出口１７を開閉する液体排出口開閉弁６は動力伝達軸４６の下端の二股部に取り付けられている。液体排出口開閉弁６は液体排出口開閉弁体３３と液体排出口開閉弁体３３の球心を回転可能に動力伝達軸４６に取り付ける揺動軸２１と平行な弁体取付軸３５とから構成される。液体排出口開閉弁体３３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に形成され排液弁口３６を開閉する。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が閉口されると共に液体排出口開閉弁６が開いて液体排出口１７が開口され、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が開口されると共に液体排出口開閉弁６が閉じて液体排出口１７が閉口される。 A transmission shaft mounting shaft 45 is stretched over the sub arm 23 to the upper right of the stopper shaft 40, and an intermediate portion 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 liquid discharge port opening / closing valve 6 that opens and closes the liquid discharge port 17 is attached to a bifurcated portion at the lower end of the power transmission shaft 46. The liquid discharge port on / off valve 6 is composed of a liquid discharge port on / off valve body 33 and a valve body mounting shaft 35 parallel to the swing shaft 21 that rotatably attaches the ball center of the liquid discharge port on / off valve body 33 to the power transmission shaft 46. Is done. The liquid discharge port opening / closing valve body 33 is formed in a drain valve seat 37 attached to the inner end of the sealed container 2 of the liquid discharge port 17 and opens and closes the drain valve port 36. 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 liquid discharge port opening / closing valve 6 is opened and the liquid discharge port 17 is opened and the air supply valve 53 is closed and the working steam introduction port 11 is closed, the exhaust valve 47 is opened and the working steam discharge port 13 is opened. The liquid inlet 16 is opened, the liquid outlet opening / closing valve 6 is closed, and the liquid outlet 17 is closed.

次に本実施例の液体圧送装置１の作用について説明する。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。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、伝達軸取付軸４５は下方に変位している。そのため、動力伝達軸４６は下方に変位している。このとき、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、液体排出口開閉弁６は液体排出口１７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、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を開口し、また、液体排出口開閉弁６が液体排出口１７を開口する。これにより、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内の圧力が上昇し、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。   Next, the operation of the liquid pumping apparatus 1 of this embodiment will be described. 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. In a state where the liquid level in the sealed container 2 is low, the float 3 is located at the bottom, and the transmission shaft mounting shaft 45 is displaced downward. Therefore, the power transmission shaft 46 is displaced downward. At this time, the supply valve 53 closes the supply valve port 50 and closes the working steam inlet port 11, and the exhaust valve 47 opens the exhaust valve port 51 and the inflow valve port 19 to open the working steam discharge port 13 and the liquid inlet. 16 is opened. Further, the liquid discharge port opening / closing valve 6 closes the liquid discharge port 17. 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 first shaft 24, which is a connecting portion with the coil spring 26, moves upward and approaches the extension line of the line connecting the swing shaft 21 and the second shaft 25, and the coil spring 26 is compressed and deformed. 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 upward movement of the exhaust valve body 47 to open the air supply valve opening 50 to open the working steam inlet 11, and the liquid discharge opening / closing valve 6 is The liquid discharge port 17 is opened. As a result, high-pressure steam is introduced into the sealed container 2 from the working steam introduction port 11, the pressure in the sealed container 2 rises, and the liquid accumulated in the sealed container 2 is pumped from the liquid discharge port 17 to the liquid pumping 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、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を閉口し、また、液体排出口開閉弁６が液体排出口１７を閉口する。これにより、密閉容器２内の高圧蒸気が作動蒸気排出口１３から液体発生源側に排出され、密閉容器２内の圧力が低下し、密閉容器２内に再び液体が流下して溜る。   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 is a connecting portion with the coil spring 26. The first shaft 24 moves downward to approach the extended line connecting the swing shaft 21 and the second shaft 25, and the coil spring 26 is compressed and deformed. 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. In addition, the supply valve body 53 is moved downward in the downward movement process of the exhaust valve body 47 to close the supply valve port 50 to close the working steam introduction port 11, and the liquid discharge port opening / closing valve 6 is The liquid discharge port 17 is closed. As a result, the high-pressure steam in the sealed container 2 is discharged from the working steam discharge port 13 to the liquid generation source side, the pressure in the sealed container 2 decreases, and the liquid flows down and accumulates in the sealed container 2 again.

本発明は、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復水圧送装置に限らず、温水や燃料等の液体を圧送する液体圧送装置に利用することができる。   The present invention is not limited to a condensate pressure feeding device that sends condensate generated in various steam using devices to a boiler or a waste heat utilization place, but can also be used in a liquid pressure feeding device that pumps liquid such as hot water or fuel.

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
６ 液体排出口開閉弁
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
２１ 揺動軸
２２ フロートアーム
２３ 副アーム
２４ 第１の軸
２５ 第２の軸
２６ コイルバネ
４６ 動力伝達軸
４７ 排気弁
５３ 給気弁 DESCRIPTION OF SYMBOLS 1 Liquid pumping apparatus 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 6 Liquid discharge port opening / closing valve 10 Liquid reservoir space 11 Working steam inlet 13 Working steam outlet 16 Liquid inlet 17 Liquid outlet 21 Oscillating shaft 22 Float arm 23 Sub-arm 24 First shaft 25 Second shaft 26 Coil spring 46 Power transmission shaft 47 Exhaust valve 53 Air supply valve

Claims (1)

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、密閉容器内にフロートとスナップ機構が内蔵され、スナップ機構は、密閉容器内に支持された揺動軸と、揺動軸の周りに回転するフロートアーム及び副アームと、フロートアームに支持された第１の軸と、副アームに支持された第２の軸と、第１及び第２の軸の間に取り付けられたバネを有し、フロートがフロートアームに連結され、給気弁と排気弁が動力伝達軸を介して副アームに連結され、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、給気弁と排気弁の開閉を切り換えて、初めに排気弁を開き給気弁を閉じ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給気弁を開く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であって、液体流入口を排気弁で開閉し、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ものにおいて、液体排出口を開閉する液体排出口開閉弁を動力伝達軸に連結し、排気弁を開いて作動蒸気排出口と液体流入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排出口開閉弁を閉じて液体排出口を閉口し、排気弁を閉じて作動蒸気排出口と液体流入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排出口開閉弁を開いて液体排出口を開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 supply valve is provided at the working steam inlet, and an exhaust valve is provided at the working steam outlet. A float and a snap mechanism are built in, and the snap mechanism includes a swing shaft supported in the sealed container, a float arm and a sub arm rotating around the swing shaft, and a first shaft supported by the float arm. And a second shaft supported by the sub arm, and a spring attached between the first and second shafts, the float is connected to the float arm, and the air supply valve and the exhaust valve are the power transmission shaft. It is connected to the sub arm via the valve and operates the snap mechanism in response to the lift of the float to move the power transmission shaft by snapping, thereby switching the supply valve and the exhaust valve to open and close. Liquid by closing the air valve A liquid pumping device that pumps liquid accumulated in the sealed container from a liquid discharge port to a liquid pumping destination by closing the exhaust valve and opening the air supply valve. Open and close the inlet with the exhaust valve, open the exhaust valve to open the working steam discharge port, close the air supply valve and close the working steam inlet, open the liquid inlet, close the exhaust valve and operate steam When the discharge port is closed, the supply valve is opened, and the working steam inlet is opened, the liquid inlet is closed. The liquid discharge port on / off valve that opens and closes the liquid discharge port is connected to the power transmission shaft, and the exhaust valve Open the operating steam outlet and liquid inlet, close the air supply valve and close the operating steam inlet, close the liquid outlet opening and closing valve, close the liquid outlet, and close the exhaust valve to operate Steam is opened by closing the steam outlet and liquid inlet and opening the supply valve Liquid pumping apparatus characterized by opening the liquid outlet opens the liquid discharge opening and closing valve when the opening inlet.
JP2010112169A 2010-05-14 2010-05-14 Liquid pumping device Pending JP2011241856A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151643A (en) * 2021-12-27 2022-03-08 青海盐湖海纳化工有限公司 Liquid hammer eliminator and liquid hammer eliminating method for liquefied gas delivery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52100233U (en) * 1976-01-28 1977-07-29
JP2009299603A (en) * 2008-06-13 2009-12-24 Tlv Co Ltd Liquid pumping device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52100233U (en) * 1976-01-28 1977-07-29
JP2009299603A (en) * 2008-06-13 2009-12-24 Tlv Co Ltd Liquid pumping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151643A (en) * 2021-12-27 2022-03-08 青海盐湖海纳化工有限公司 Liquid hammer eliminator and liquid hammer eliminating method for liquefied gas delivery
CN114151643B (en) * 2021-12-27 2024-04-09 青海盐湖海纳化工有限公司 Liquid hammer eliminator and liquid hammer eliminating method for liquefied gas conveying

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