JP5389526B2 - Liquid pumping device - Google Patents

Liquid pumping device Download PDF

Info

Publication number
JP5389526B2
JP5389526B2 JP2009119262A JP2009119262A JP5389526B2 JP 5389526 B2 JP5389526 B2 JP 5389526B2 JP 2009119262 A JP2009119262 A JP 2009119262A JP 2009119262 A JP2009119262 A JP 2009119262A JP 5389526 B2 JP5389526 B2 JP 5389526B2
Authority
JP
Japan
Prior art keywords
liquid
valve
inlet
shaft
closed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2009119262A
Other languages
Japanese (ja)
Other versions
JP2010265848A (en
Inventor
知美 久保
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 JP2009119262A priority Critical patent/JP5389526B2/en
Publication of JP2010265848A publication Critical patent/JP2010265848A/en
Application granted granted Critical
Publication of JP5389526B2 publication Critical patent/JP5389526B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Jet Pumps And Other Pumps (AREA)

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から設けられ、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流入側逆止弁を介して液体を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圧送側逆止弁を介して液体圧送先へ圧送するものである。 A conventional liquid pumping device is disclosed in Patent Document 1, for example. This is a closed vessel provided with a working steam inlet, a working steam outlet, a liquid inlet and a liquid outlet, a working valve inlet provided with a supply valve, and a working steam outlet provided with an exhaust valve, An inlet 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 fluid to the liquid pressure destination is provided at the liquid outlet, and is sealed. By operating the snap mechanism in response to the raising and lowering of the float placed in the container, the intake valve and the exhaust valve are switched between open and closed, and the exhaust valve is opened first and then the intake valve is closed. Then, the liquid is caused to flow into the sealed container, and then the exhaust valve is closed and the air supply valve is opened, so that the liquid accumulated in the sealed container is pumped to the liquid pumping destination via the pressure-feed-side check valve.

特開平８−１４５２９０号公報JP-A-8-145290

上記従来の液体圧送装置は、排気弁を閉じ給気弁を開いたときに、流入側逆止弁が閉弁する前に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流入側逆止弁の上流側に回り込むために、流入側逆止弁の上流側の蒸気使用装置等の負荷側が真空の場合、流入側逆止弁の上流側に回り込んだ蒸気が急凝縮して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 closed and the air supply valve is opened, a part of the working steam introduced into the sealed container from the working steam inlet before the inflow side check valve is closed. If the load side of the steam using device, etc., upstream of the inflow side check valve is evacuated in order to circulate upstream of the inflow side check valve, the steam that has circulated upstream of the inflow side check valve will condense rapidly. There was a problem that caused a hammer.

したがって本発明が解決しようとする課題は、排気弁を閉じ給気弁を開いたときに、流入側逆止弁が閉弁する前に流入側逆止弁の上流側に回り込む作動蒸気量を低減できる、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 that when the exhaust valve is closed and the air supply valve is opened, the amount of working steam that flows upstream of the inflow side check valve before the inflow side check valve closes is reduced. It is to provide a liquid pumping device that can.

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から設けられ、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流入側逆止弁を介して液体を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圧送側逆止弁を介して液体圧送先へ圧送する液体圧送装置において、密閉容器内を作動蒸気導入口側と液体流入口側とに隔て上部に通気小孔を有し下端が排気弁を閉じ給気弁を開くときの密閉容器内の水位よりも下方に伸びる仕切筒を設けたことを特徴とする。 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 vapor outlet, an inflow check valve is provided at the liquid inlet to allow only the liquid flow to the sealed container, and the fluid flow to the liquid pressure destination is provided at the liquid outlet. A pressure check valve that allows only air is provided, and a snap mechanism is operated in response to the raising and lowering of the float placed in the airtight container. Open the air supply valve and close the air supply valve to allow the liquid to flow into the sealed container, then close the exhaust valve and open the air supply valve to open the air supply valve, and the liquid accumulated in the airtight container will be pressurized side check Liquid pumping device that pumps to a liquid pumping destination via a valve In this case, the inside of the sealed container is separated from the working steam inlet side and the liquid inlet side, and a vent hole is formed in the upper part, and the lower end is below the water level in the sealed container when the exhaust valve is closed and the air supply valve is opened. An extending partition tube is provided.

本発明によれば、密閉容器内を作動蒸気導入口側と液体流入口側とに隔て上部に通気小孔を有し下端が排気弁を閉じ給気弁を開くときの密閉容器内の水位よりも下方に伸びる仕切筒を設けることにより、排気弁を閉じ給気弁を開いたときに、流入側逆止弁が閉弁する前に流入側逆止弁の上流側に回り込む作動蒸気量を低減でき、ハンマを起こすことがないという優れた効果を生じる。 According to the present invention, the water level in the sealed container when the closed container is divided into the working steam inlet side and the liquid inlet side and the ventilation hole is formed in the upper part and the lower end closes the exhaust valve and opens the air supply valve. Also, by providing a partition cylinder that extends downward, the amount of working steam that flows around the upstream side of the inflow side check valve before the inflow side check valve closes when the exhaust valve is closed and the air supply valve is opened is reduced. It produces an excellent effect of not causing a hammer.

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及びスナップ機構５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。作動蒸気導入口１１の内側に給気弁２０が取り付けられ、作動蒸気排出口１３の内側に排気弁２１が取り付けられている。給気弁２０は弁ケース２２と弁体２３及び昇降棒２４によって構成される。弁ケース２２は軸方向に貫通孔を有し、貫通孔の上端面は弁座２５として機能する。弁ケース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。給気弁２０の弁ケース２２の先端は作動蒸気導入口１１の中にねじ込まれている。弁体２３は半球状で作動蒸気導入口１１側にあり、昇降棒２４の上端に一体に取り付けられている。昇降棒２４は弁ケース２２の貫通孔を通って密閉容器２側に抜け、連接板２７に当接するようになっている。連接板２７は動力伝達軸２８に連結され、動力伝達軸２８はスナップ機構５と連結されている。排気弁２１は弁ケース２９と弁体３０と昇降棒３１によって構成される。弁ケース２９は軸方向に貫通孔を有し、貫通孔の内部に弁座３２があり、弁座３２の下から昇降棒３１の上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。昇降棒３１の下端はピンで動力伝達軸２８に連結されている。給気弁２０と排気弁２１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。 Hereinafter, an embodiment of the present invention will be described with reference to FIG. The liquid pumping apparatus 1 according to the present embodiment has a float 3, a switching valve 4, and a snap mechanism 5 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. An intake valve 20 is attached inside the working steam inlet 11, and an exhaust valve 21 is attached inside the working steam outlet 13. The air supply valve 20 includes a valve case 22, a valve body 23, and an elevating 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 the valve seat 25. Four openings 26 are provided in the middle portion of the valve case 22 so as to communicate the above-described through holes with the outside. The tip of the valve case 22 of the air supply valve 20 is screwed into the working steam inlet 11. The valve body 23 is hemispherical, is on the working steam inlet 11 side, and is integrally attached to the upper end of the elevating rod 24. The lifting / lowering rod 24 passes through the through hole of the valve case 22 to the closed container 2 side and comes into contact with the connecting plate 27. The connecting plate 27 is connected to a power transmission shaft 28, and the power transmission shaft 28 is connected to the snap mechanism 5. The exhaust valve 21 includes a valve case 29, a valve body 30, and an elevating rod 31. The valve case 29 has a through hole in the axial direction, and has a valve seat 32 inside the through hole. The valve body 30 held and fixed to the upper end of the lifting rod 31 from below the valve seat 32 makes contact and opens and closes. Is. The lower end of the elevating bar 31 is connected to the power transmission shaft 28 by a pin. The switching valve 4 is constituted by the air supply valve 20 and the exhaust valve 21, and when the air supply valve 20 is opened, the exhaust valve 21 is closed, and when the air supply valve 20 is closed, the exhaust valve 21 is opened.

フロート３はレバー３４及び軸３５を介してブラケット３６によって支持され、スナップ機構５は揺動軸３７を介してブラケット３８によって支持されている。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。レバー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、曲げ加工された部分にフロート３が結合されている。レバー３４の他端部には軸４０が取り付けられている。ブラケット３６は「Ｌ」字状をした２枚の板よりなり、軸３５及び軸４１，４２が掛け渡されて連結されたものである。軸３５を中心としてフロート３は回転する。軸４１，４２はそれぞれフロート３の上下限のストッパを兼用している。ブラケット３８も同様に「Ｌ」字状をした２枚の板よりなり、揺動軸３７及び軸４３が掛け渡されて連結されたものである。軸４３は下記の副アーム５２のストッパを兼ねている。スナップ機構５はフロートアーム５１、副アーム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。フロートアーム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。フロートアーム５１の溝５７にはレバー３４の軸４０が嵌合している。フロートアーム５１は揺動軸３７によって右端部が回転可能に支持されている。そのためフロートアーム５１はフロート３の浮沈に追従し、揺動軸３７を中心として上下に揺動する。フロートアーム５１の右端部は下方に脹れ、その下端部には揺動軸３７と平行な第１の軸５８が掛け渡され、バネ受け部材５５が第１の軸５８によって回転可能に支持されている。揺動軸３７に副アーム５２の中間部が回転可能に支持されている。副アーム５２は平行に対向した２枚の板よりなり、下端部には揺動軸３７及び第１の軸５８と平行な第２の軸５９が掛け渡され、バネ受け部材５６が第２の軸５９によって回転可能に支持されている。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。また副アーム５２の中間左端部に軸６０が掛け渡され、動力伝達軸２８の下端が連結されている。フロートアーム５１には、軸６０の動きを妨げないように、窓６１が開けられている。 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 swing shaft 37. The bracket 36 and the bracket 38 are coupled by a screw (not shown) and are integrally attached to the lid portion 8 of the sealed container 2. The lever 34 is formed by bending a plate into a “U” shape, the two plates are opposed in parallel, and the float 3 is coupled to the bent portion. A shaft 40 is attached to the other end of the lever 34. The bracket 36 is composed of two “L” -shaped plates, and the shaft 35 and the shafts 41 and 42 are spanned and connected. The float 3 rotates about the shaft 35. The shafts 41 and 42 also serve as upper and lower limit stoppers for the float 3. Similarly, the bracket 38 is also composed of two “L” -shaped plates, and the swing shaft 37 and the shaft 43 are stretched over and connected. The shaft 43 also serves as a stopper for the sub arm 52 described below. The snap mechanism 5 includes a float arm 51, a sub arm 52, a compressed coil spring 54, a spring receiving member 55, and a spring receiving member 56. The float arm 51 is composed of two plates facing each other in parallel, and a groove 57 is provided at the left end of the two plates. The shaft 40 of the lever 34 is fitted in the groove 57 of the float arm 51. The float arm 51 is rotatably supported by the swing shaft 37 at the right end. Therefore, the float arm 51 follows up and down of the float 3 and swings up and down around the swing shaft 37. A right end portion of the float arm 51 is expanded downward, and a first shaft 58 parallel to the swing shaft 37 is spanned on the lower end portion thereof, and the spring receiving member 55 is rotatably supported by the first shaft 58. ing. An intermediate portion of the sub arm 52 is rotatably supported on the swing shaft 37. The sub arm 52 includes two plates facing each other in parallel, and a swing shaft 37 and a second shaft 59 parallel to the first shaft 58 are spanned on the lower end portion, and the spring receiving member 56 is a second member. The shaft 59 is rotatably supported. A compressed coil spring 54 is attached between the spring receiving members 55 and 56. A shaft 60 is stretched over the middle left end of the sub arm 52, and the lower end of the power transmission shaft 28 is connected. A window 61 is opened in the float arm 51 so as not to hinder the movement of the shaft 60.

蒸気使用装置等の負荷に接続される液体流入口１６に外部から液体流入口１６に向かって開く流入側逆止弁６２が設けられる。ボイラー等の液体圧送先へ接続される液体排出口１７に液体流入口１６から外部に向かって開く圧送側逆止弁６３が設けられる。液体流入口１６に対向して密閉容器２内を作動蒸気導入口１１側と液体流入口１６側とに隔てる仕切筒６５を設ける。仕切筒６５はストリートエルボにより形成され、液体流入口１６の内側にねじ結合されている。仕切筒６５は上部に通気小孔６６を有する。仕切筒６５の下端は排気弁２１が閉じられ給気弁２０が開かれるときの密閉容器２内の水位Ｗよりも下方に伸びている。そのため、副アーム５２のスナップ移動により動力伝達軸２８を介して排気弁２１が閉じられ給気弁２０が開かれたときに、作動蒸気導入口１１から密閉容器２内に導入された作動蒸気が仕切筒６５の下端から液体流入口１６側へ回り込むことを防止できる。 An inflow check valve 62 that opens from the outside toward the liquid inlet 16 is provided at the liquid inlet 16 connected to a load such as a steam using device. A pressure-feed-side check valve 63 that opens from the liquid inlet 16 to the outside is provided at the liquid discharge port 17 connected to a liquid pressure-feed destination such as a boiler. A partition cylinder 65 is provided so as to face the liquid inlet 16 and separate the inside of the sealed container 2 into the working vapor inlet 11 side and the liquid inlet 16 side. The partition cylinder 65 is formed by a street elbow and is screwed to the inside of the liquid inlet 16. The partition cylinder 65 has a ventilation hole 66 at the top. The lower end of the partition cylinder 65 extends below the water level W in the sealed container 2 when the exhaust valve 21 is closed and the air supply valve 20 is opened. Therefore, when the exhaust valve 21 is closed and the air supply valve 20 is opened via the power transmission shaft 28 by the snap movement of the sub arm 52, the working steam introduced into the sealed container 2 from the working steam inlet 11. It is possible to prevent the partition tube 65 from entering the liquid inlet 16 side.

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。まず液体圧送装置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は蒸気循環配管に接続される。液体流入口１６は蒸気使用装置等の負荷に接続され、液体排出口１７はボイラー等の液体圧送先へ接続される。本実施例の液体圧送装置１の液体溜空間１０内に復水が無い場合は、フロート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。また、流入側逆止弁６２が開かれ、圧送側逆止弁６３が閉じられている。そして、蒸気使用装置等の負荷内で復水が発生すると、復水は水頭圧により圧送液体流入口１６から密閉容器２内に流下して、液体溜空間１０内に溜る。密閉容器２内の水位の上昇に伴ってフロート３が浮上すると、レバー３４が軸３５を中心に時計回り方向に回転し、レバー３４の回転による軸４０の下方への移動に連動して、フロートアーム５１が揺動軸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１の軸５８が右方に移動して揺動軸３７と第２の軸５９を結ぶ線に近付き、コイルバネ５４は圧縮変形する。そして密閉容器２内の水位の上昇に伴ってフロート３が更に浮上して密閉容器２内の水位がＷに達し、第１の軸５８が揺動軸３７と第２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、副アーム５２が時計回り方向にスナップ移動する。その結果、副アーム５２の軸６０に連結された弁軸操作棒２８が上側に移動し、給気弁２０が開かれると共に排気弁２１が閉じられる。この排気弁２１が閉じられ給気弁２０が開かれたときに、作動蒸気導入口１１から密閉容器２内に導入された作動蒸気が仕切筒６５の下端から液体流入口１６側へ回り込むことを防止できるので、流入側逆止弁６２が閉弁する前に流入側逆止弁６２の上流側に回り込む作動蒸気量を低減できハンマを起こすことがない。 Next, the operation of the liquid pumping apparatus 1 of this embodiment will be described. First, the external piping of the liquid pumping apparatus 1 has a working steam inlet 11 connected to a high-pressure steam source, and a working steam discharge port 13 connected to a steam circulation pipe. The liquid inlet 16 is connected to a load such as a steam using device, and the liquid outlet 17 is connected to a liquid pressure destination such as a boiler. When there is no condensate in the liquid reservoir space 10 of the liquid pumping apparatus 1 of this embodiment, the float 3 is located at the bottom. At this time, the supply valve 20 in the switching valve 4 is closed and the exhaust valve 21 is opened. Further, the inflow side check valve 62 is opened, and the pressure-feed side check valve 63 is closed. When condensate is generated in a load such as a steam using device, the condensate flows down from the pumped liquid inflow port 16 into the sealed container 2 due to the water head pressure and accumulates in the liquid reservoir space 10. When the float 3 rises as the water level in the sealed container 2 rises, the lever 34 rotates clockwise about the shaft 35, and in conjunction with the downward movement of the shaft 40 due to the rotation of the lever 34, the float 3 floats. The arm 51 rotates counterclockwise about the swing shaft 37, and the first shaft 58, which is a connecting portion with the coil spring 54, moves to the right to connect the swing shaft 37 and the second shaft 59. As the wire approaches the wire, the coil spring 54 is compressed and deformed. Then, as the water level in the sealed container 2 rises, the float 3 further rises, the water level in the sealed container 2 reaches W, and the first shaft 58 comes from the line connecting the swing shaft 37 and the second shaft 59. When the coil spring 54 is also moved rightward, the coil spring 54 suddenly recovers its deformation, and the sub arm 52 snaps in the clockwise direction. As a result, the valve shaft operating rod 28 connected to the shaft 60 of the sub arm 52 moves upward, the air supply valve 20 is opened, and the exhaust valve 21 is closed. When the exhaust valve 21 is closed and the air supply valve 20 is opened, the working steam introduced into the sealed container 2 from the working steam inlet 11 flows from the lower end of the partition cylinder 65 to the liquid inlet 16 side. Therefore, before the inflow side check valve 62 is closed, the amount of working steam that flows around the upstream side of the inflow side check valve 62 can be reduced, and no hammer occurs.

給気弁２０が開かれると共に排気弁２１が閉じられると、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、内部の圧力が上昇し、流入側逆止弁６２が閉じられると共に圧送側逆止弁６３が開かれる。液体溜空間１０に溜った復水は、蒸気圧に押されて圧送液体排出口１７から圧送側逆止弁６３を介して外部のボイラーや廃熱利用装置へ排出される。復水の排出によって密閉容器２内の水位が低下すると、フロート３が降下して、レバー３４が軸３５を中心に反時計回り方向に回転し、レバー３４の回転による軸４０の上方への移動に連動して、フロートアーム５１が揺動軸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１の軸５８が左方に移動して揺動軸３７と第２の軸５９を結ぶ線に近付き、コイルバネ５４は圧縮変形する。そしてフロート３が更に降下し、第１の軸５８が揺動軸３７と第２の軸５９を結ぶ線上に並び、なおもフロート３が降下して第１の軸５８が揺動軸３７と第２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、副アーム５２が反時計回り方向にスナップ移動する。その結果、副アーム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が閉じられると共に排気弁２１が開かれる。給気弁２０が閉じられると共に排気弁２１が開かれると、密閉容器２内の圧力が低下し、流入側逆止弁６２が開かれると共に圧送側逆止弁６３が閉じられる。 When the air supply valve 20 is opened and the exhaust valve 21 is closed, high-pressure steam is introduced into the sealed container 2 from the working steam inlet 11, the internal pressure rises, and the inflow side check valve 62 is closed. The pressure side check valve 63 is opened. The condensate collected in the liquid storage space 10 is pushed by the vapor pressure and discharged from the pumped liquid discharge port 17 to the external boiler or the waste heat utilization device through the pumping side check valve 63. When the water level in the sealed container 2 decreases due to the discharge of condensate, the float 3 descends, the lever 34 rotates counterclockwise about the shaft 35, and the shaft 40 moves upward due to the rotation of the lever 34. In conjunction with this, the float arm 51 rotates in the clockwise direction around the swing shaft 37, and the first shaft 58, which is a connecting portion with the coil spring 54, moves to the left to move the swing shaft 37 and the second shaft. The coil spring 54 is compressed and deformed. Then, the float 3 is further lowered, the first shaft 58 is arranged on a line connecting the swing shaft 37 and the second shaft 59, and the float 3 is further lowered so that the first shaft 58 is moved to the swing shaft 37 and the second shaft 59. When the coil spring 54 moves to the left from the line connecting the two shafts 59, the coil spring 54 rapidly recovers from the deformation, and the sub arm 52 snaps in the counterclockwise direction. 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 is closed, and the exhaust valve 21 is opened. When the air supply valve 20 is closed and the exhaust valve 21 is opened, the pressure in the hermetic container 2 decreases, the inflow side check valve 62 is opened, and the pressure feed side check valve 63 is closed.

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
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
２０ 給気弁
２１ 排気弁
２８ 動力伝達軸
３７ 揺動軸
５１ フロートアーム
５２ 副アーム
５４ コイルバネ
５８ 第１の軸
５９ 第２の軸
６２ 流入側逆止弁
６３ 圧送側逆止弁
６５ 仕切筒
６６ 通気小孔
Ｗ 密閉容器内の水位 DESCRIPTION OF SYMBOLS 1 Liquid pumping apparatus 2 Airtight container 3 Float 4 Switching valve 5 Snap mechanism 10 Liquid reservoir space 11 Working steam inlet 13 Working steam outlet 16 Liquid inlet 17 Liquid outlet 20 Supply valve 21 Exhaust valve 28 Power transmission shaft 37 Swing Moving shaft 51 Float arm 52 Sub arm 54 Coil spring 58 First shaft 59 Second shaft 62 Inflow side check valve 63 Pressure side check valve 65 Partition tube 66 Venting small hole W Water level in the sealed container

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、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流入側逆止弁を介して液体を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圧送側逆止弁を介して液体圧送先へ圧送する液体圧送装置において、流体流入口に接続する仕切筒を設け、該仕切筒は、排気弁を閉じ給気弁を開くときの密閉容器内の水位よりも下方に伸びる下端開口部を有し、前記排気弁を閉じ前記給気弁を開くときの前記水位及び前記仕切筒により、密閉容器内を作動蒸気導入口側と液体流入口側とに隔て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, an exhaust valve is provided at the working steam outlet, and a liquid inlet An inlet check valve that allows only the flow of liquid to the sealed container is provided, and a pressure check valve that allows only the flow of fluid to the liquid pressure destination is provided at the liquid discharge port. By operating the snap mechanism according to the raising and lowering of the float that is placed, the supply valve and the exhaust valve are switched between opening and closing, and the exhaust valve is opened first and then the supply valve is closed. In a liquid pumping device that causes liquid to flow into the sealed container and then pumps the liquid accumulated in the sealed container by closing the exhaust valve and opening the air supply valve to the liquid pumping destination via the pressure check valve, the fluid flow A partition tube connected to the inlet is provided, and the partition tube is The lower end opening extends below the water level in the sealed container when the exhaust valve is closed and the air supply valve is opened, and is sealed by the water level and the partition cylinder when the exhaust valve is closed and the air supply valve is opened. A liquid pumping device characterized in that the inside of a container is separated into a working vapor inlet side and a liquid inlet side .
JP2009119262A 2009-05-15 2009-05-15 Liquid pumping device Expired - Fee Related JP5389526B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009119262A JP5389526B2 (en) 2009-05-15 2009-05-15 Liquid pumping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009119262A JP5389526B2 (en) 2009-05-15 2009-05-15 Liquid pumping device

Publications (2)

Publication Number Publication Date
JP2010265848A JP2010265848A (en) 2010-11-25
JP5389526B2 true JP5389526B2 (en) 2014-01-15

Family

ID=43363027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009119262A Expired - Fee Related JP5389526B2 (en) 2009-05-15 2009-05-15 Liquid pumping device

Country Status (1)

Country Link
JP (1) JP5389526B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7282402B2 (en) * 2021-02-25 2023-05-29 株式会社ミヤワキ liquid pumping device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896199A (en) * 1982-11-12 1983-06-08 Shigeki Otani Fluid pressure-sending machine
JP3273347B2 (en) * 1994-11-15 2002-04-08 株式会社テイエルブイ Liquid pumping device
JP5274974B2 (en) * 2008-10-15 2013-08-28 株式会社テイエルブイ Liquid pumping device

Also Published As

Publication number Publication date
JP2010265848A (en) 2010-11-25

Similar Documents

Publication Publication Date Title
JP5085211B2 (en) Liquid pumping device
JP4994965B2 (en) Liquid pumping device
JP4607694B2 (en) Liquid pumping device
JP5138343B2 (en) Liquid pumping device
JP4994966B2 (en) Liquid pumping device
JP5274974B2 (en) Liquid pumping device
JP5350189B2 (en) Liquid pumping device
JP5090092B2 (en) Liquid pumping device
JP5389526B2 (en) Liquid pumping device
JP5107149B2 (en) Liquid pumping device
JP5107150B2 (en) Liquid pumping device
JP2006226141A (en) Condensate pressure feeding device
JP4704832B2 (en) Liquid pumping device
JP4777801B2 (en) Liquid pumping device
JP5514056B2 (en) Liquid pumping device
JP4738939B2 (en) Liquid pumping device
JP2011064226A (en) Liquid pumping device
JP4704919B2 (en) Liquid pumping device
JP4874738B2 (en) Liquid pumping device
JP5107151B2 (en) Liquid pumping device
JP5274973B2 (en) Liquid pumping device
JP5312975B2 (en) Liquid pumping device
JP5117476B2 (en) Liquid pumping device
JP5405896B2 (en) Liquid pumping device
JP5469990B2 (en) Liquid pumping device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120424

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130214

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130226

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130426

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20131008

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20131009

R150 Certificate of patent or registration of utility model

Ref document number: 5389526

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees