JP2014134266A - Float type drain trap - Google Patents

Float type drain trap Download PDF

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JP2014134266A
JP2014134266A JP2013003582A JP2013003582A JP2014134266A JP 2014134266 A JP2014134266 A JP 2014134266A JP 2013003582 A JP2013003582 A JP 2013003582A JP 2013003582 A JP2013003582 A JP 2013003582A JP 2014134266 A JP2014134266 A JP 2014134266A
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valve
shaft
lever
arm
valve port
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Hideaki Yumoto
秀昭 湯本
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TLV Co Ltd
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TLV Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a float type drain trap capable of: determining that a valve port area is reduced; and cleaning a valve port.SOLUTION: A float type drain trap includes: a rocking shaft 8 supported in a valve chest 5; a lever 9 and a main arm 10 to be revolved around the rocking shaft 8; a float 12 connected to the lever 9 for floating up/down depending on a liquid level in the valve chest 5; a lever shaft 11 supported by the lever 9; a main arm shaft 14 supported by the main arm 10; a coil spring 16 mounted between the lever shaft 11 and the main arm shaft 14 and having both mounting parts revolvable; a valve arm shaft 17 supported by the main arm 10; a valve arm 18 to be revolved around the valve arm shaft 17; a valving element 20 connected to the valve arm 18 for opening/closing a valve port 6; a flow detector 34 for detecting vibration, sounds or ultrasonic waves associated with the flow of condensed water; a reduction determiner 35 for determining that the valve port area is reduced, based on a time period from opening of the valve port 6 to next closing of the valve port 6; and a cleaning member 27 to be moved forward/backward in the valve port 6 for cleaning foreign matters deposited and accumulated on the valve port 6.

Description

本発明は、蒸気配管系や圧縮空気配管系に発生するドレンをフロートを用いて自動的に排出するフロート式ドレントラップに関するものである。 The present invention relates to a float drain trap that automatically discharges drain generated in a steam piping system or a compressed air piping system using a float.

従来のフロート式ドレントラップは、例えば、特許文献１に示されたものがある。これは、入口と弁室と出口を有するケーシングと、出口の弁室側端に形成され弁室と出口を連通する弁口と、弁室内に支持された揺動軸と、揺動軸の周りに回転するレバーと、レバーに連結され弁室の液位に応じて浮上降下するフロートと、揺動軸から離れた点においてレバーに支持され揺動軸と平行な弁アーム軸と、弁アーム軸の周りに回転する弁アームと、弁アームに連結され弁口を開閉する弁体とを具備するものである。 A conventional float drain trap is disclosed in Patent Document 1, for example. This includes a casing having an inlet, a valve chamber, and an outlet, a valve port formed at the end of the outlet on the valve chamber side and communicating with the valve chamber and the outlet, a swinging shaft supported in the valve chamber, and around the swinging shaft. A lever that rotates in parallel to the lever, floats up and down according to the liquid level in the valve chamber, a valve arm shaft that is supported by the lever at a point away from the swing shaft and is parallel to the swing shaft, and a valve arm shaft And a valve body connected to the valve arm to open and close the valve port.

特開２００５−３６９０１号公報JP-A-2005-36901

上記従来のフロート式ドレントラップは、弁室内の液位に応じて上下動するフロートによりレバーが揺動軸の周りに回転し、レバーの回転により弁アームが弁アーム軸の周りに回転しながら上下動し、弁アームの上下動により弁体が上下動して弁口を開閉するものである。このフロート式ドレントラップにおいては、弁口を流下するドレン中のゴミ、錆、スケール等の異物が弁口に付着し易く次第に堆積して弁口面積を減少させる問題点があった。 In the conventional float drain trap, the lever rotates around the swing shaft by the float that moves up and down according to the liquid level in the valve chamber, and the valve arm rotates around the valve arm shaft by the rotation of the lever. The valve body is moved up and down by the vertical movement of the valve arm to open and close the valve port. In this float drain trap, there is a problem that foreign matter such as dust, rust and scale in the drain flowing down the valve port easily adheres to the valve port and gradually accumulates to reduce the valve port area.

したがって本発明が解決しようとする課題は、弁口面積の減少を判定できるとともに弁口を掃除できるフロート式ドレントラップを提供することである。 Therefore, the problem to be solved by the present invention is to provide a float drain trap capable of determining a decrease in the valve port area and cleaning the valve port.

上記の課題を解決するために、本発明のフロート式ドレントラップは、入口と弁室と出口を有するケーシングと、出口の弁室側端に形成され弁室と出口を連通する弁口と、弁室内に支持された揺動軸と、揺動軸の周りに回転するレバー及び主アームと、レバーに連結され弁室の液位に応じて浮上降下するフロートと、揺動軸から離れた点においてレバーに支持され揺動軸と平行なレバー軸と、揺動軸及びレバー軸から離れた点において主アームに支持され揺動軸と平行な主アーム軸と、レバー軸及び主アーム軸の間に取付けられ両取付部が回転可能であるコイルバネと、揺動軸とレバー軸及び主アーム軸から離れた点において主アームに支持され揺動軸と平行な弁アーム軸と、弁アーム軸の周りに回転する弁アームと、弁アームに連結され弁口を開閉する弁体と、ドレンの流動に伴う振動や音あるいは超音波を検出する流動検出器と、弁口が開口されたときから次に弁口が閉口されるときまでの時間から弁口面積の減少を判定する減少判定器と、弁口内を進退して弁口に付着堆積した異物を掃除する掃除部材を具備することを特徴とするものである。 In order to solve the above problems, a float drain trap according to the present invention includes a casing having an inlet, a valve chamber, and an outlet, a valve port formed at a valve chamber side end of the outlet and communicating the valve chamber and the outlet, A swing shaft supported in the chamber, a lever and a main arm that rotate around the swing shaft, a float that is connected to the lever and floats according to the liquid level in the valve chamber, and at a point away from the swing shaft Between the lever shaft and the main arm shaft, the lever shaft supported by the lever and parallel to the swing shaft, the main arm shaft supported by the main arm at a point away from the swing shaft and the lever shaft, and parallel to the swing shaft. A coil spring that is mounted and rotatable at both mounting portions, a valve arm shaft that is supported by the main arm at a point away from the swing shaft, lever shaft, and main arm shaft and parallel to the swing shaft, and around the valve arm shaft A rotating valve arm and a valve connected to the valve arm A valve body that opens and closes the valve, a flow detector that detects vibration, sound, or ultrasonic waves accompanying the flow of drain, and the time from when the valve port is opened until the next time the valve port is closed to the valve port area A reduction determination unit for determining a decrease in the amount and a cleaning member for advancing and retreating the inside of the valve port to clean the foreign matter adhering to and deposited on the valve port.

本発明のフロート式ドレントラップは、弁室内の液位に応じて上下動するフロートによりレバーが揺動軸の周りに回転し、レバーの回転によりレバー軸が揺動軸と主アーム軸を結ぶ線に近づく方向に移動してコイルバネを圧縮変形させ、レバー軸が揺動軸と主アーム軸を結ぶ線を越えるとコイルバネが変形を回復して、主アーム軸が揺動軸とレバー軸を結ぶ線から遠ざかる方向に主アームを回転させ、主アームの回転により弁アームが弁アーム軸の周りに回転しながら上下動し、弁アームの上下動により弁体が上下動して弁口を開閉する。そして、異物が弁口に付着堆積して弁口面積が減少するとドレン排出に要する時間が長くなるので、ドレンの流動に伴う振動や音あるいは超音波を流動検出器により検出し、弁口が開口されたときから次に弁口が閉口されるときまでの時間から弁口面積の減少を減少判定器により判定し、掃除部材を進退させて弁口に付着堆積した異物を掃除することにより、弁口面積の減少を判定できるとともに弁口を掃除できるという優れた効果を生じる。 In the float drain trap of the present invention, the lever rotates around the swing shaft by the float that moves up and down according to the liquid level in the valve chamber, and the lever shaft connects the swing shaft and the main arm shaft by the rotation of the lever. When the lever shaft crosses the line connecting the swing axis and the main arm shaft, the coil spring recovers from the deformation, and the main arm shaft connects the swing axis and the lever shaft. The main arm is rotated in a direction away from the valve, and the valve arm moves up and down around the valve arm shaft by the rotation of the main arm, and the valve body moves up and down by the vertical movement of the valve arm to open and close the valve port. When the foreign matter adheres to and accumulates on the valve port and the valve port area decreases, the time required for drainage becomes longer, so vibrations, sounds, or ultrasonic waves accompanying the flow of the drain are detected by the flow detector, and the valve port opens. From the time from when the valve is closed to the next time the valve mouth is closed, the decrease in the valve mouth area is judged by the decrease determinator, and the cleaning member is moved forward and backward to clean the foreign matter deposited and deposited on the valve mouth. It is possible to determine the reduction of the mouth area and to produce an excellent effect that the valve mouth can be cleaned.

本発明の実施の形態に係わるフロート式ドレントラップの断面図である。It is sectional drawing of the float type drain trap concerning embodiment of this invention. 図１のフロート式ドレントラップのドレンの流動に伴う振動や音あるいは超音波のレベルを示す図である。It is a figure which shows the level of the vibration, sound, or ultrasonic wave accompanying the flow of the drain of the float type drain trap of FIG. 図１のフロート式ドレントラップの流動検出器の拡大断面図である。It is an expanded sectional view of the flow detector of the float type drain trap of FIG.

以下、本発明の実施の形態について、図１乃至図３を参照して説明する。本発明のフロート式ドレントラップは、本体１に入口２と出口３を有する蓋体４をボルトで締結して内部に弁室５を有するケーシングを構成する。弁室５と出口３を連通する弁口６を有する弁座部材７を蓋体４下部の出口３の弁室５側端にねじ結合する。入口２は弁室５の上部に開口し、出口３は弁口６を介して弁室５の下部に開口する。弁室５内に揺動軸８を掛け渡して支持し、揺動軸８にレバー９と主アーム１０を回転可能に支持する。レバー９は平行に対向した２枚の板よりなり、揺動軸８から離れた点において揺動軸８と平行なレバー軸１１を掛け渡し、レバー軸１１に弁室５の液位に応じて浮上降下する中空球形のフロート１２を連結する。また、レバー軸１１にバネ受け１３を回転可能に支持する。主アーム１０は平行に対向した２枚の板よりなり、揺動軸８及びレバー軸１１から離れた点において揺動軸８と平行な主アーム軸１４を掛け渡し、主アーム軸１４にバネ受け１５を回転可能に支持する。レバー軸１１のバネ受け１３と主アーム軸１４のバネ受け１５の間にコイルバネ１６を取り付ける。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. The float drain trap of the present invention constitutes a casing having a valve chamber 5 inside by fastening a lid 4 having an inlet 2 and an outlet 3 to a main body 1 with a bolt. A valve seat member 7 having a valve port 6 communicating with the valve chamber 5 and the outlet 3 is screwed to the valve chamber 5 side end of the outlet 3 below the lid body 4. The inlet 2 opens to the upper part of the valve chamber 5, and the outlet 3 opens to the lower part of the valve chamber 5 through the valve port 6. A swing shaft 8 is spanned and supported in the valve chamber 5, and a lever 9 and a main arm 10 are rotatably supported on the swing shaft 8. The lever 9 is composed of two plates facing each other in parallel, and a lever shaft 11 parallel to the swing shaft 8 is spanned at a point away from the swing shaft 8, and the lever shaft 11 is adapted to the liquid level in the valve chamber 5. The hollow spherical float 12 that rises and falls is connected. Further, the spring receiver 13 is rotatably supported on the lever shaft 11. The main arm 10 is composed of two parallel opposing plates, spans a main arm shaft 14 parallel to the swing shaft 8 at a point away from the swing shaft 8 and the lever shaft 11, and receives a spring receiver on the main arm shaft 14. 15 is rotatably supported. A coil spring 16 is attached between the spring receiver 13 of the lever shaft 11 and the spring receiver 15 of the main arm shaft 14.

揺動軸８とレバー軸１１及び主アーム軸１４から離れた点において揺動軸８と平行な弁アーム軸１７を主アーム１０に掛け渡し、弁アーム軸１７に弁アーム１８を回転可能に支持する。弁アーム１８は２枚の板よりなり、揺動軸８とレバー軸１１と主アーム軸１４及び弁アーム軸１７から離れた点において揺動軸８と平行な弁体軸１９を掛け渡し、弁体軸１９に弁口６を開閉する球状の弁体２０の球心を回転可能に支持する。弁アーム１８に当接部２１を設け、当接部２１にボルト状の調節部材２２をねじ結合により取り付ける。レバー９は弁体２０が弁口６を閉じるときに、調節部材２２を介して弁アーム１８の当接部２１に当接し、調節部材２２と弁アーム１８を介して弁体２０を弁口６に押し付けることができる。当接部材２２の当接部２１へのねじ込み量を調節することにより、弁体２０が弁口６を閉じるときに、レバー９が調節部材２２と弁アーム１８を介して確実に弁体２０を弁口６に押し付けることができる。弁室５内にストッパー軸２３を掛け渡し、レバー９にストッパー軸２３が貫通する窓２４を開口するとともに主アーム１０にストッパー軸２３が貫通する窓２５を開口する。フロート１２の浮上及び降下によるレバー９の時計回り方向及び反時計回り方向への回転が窓２４の右端及び左端で規制されるとともに主アーム１０の反時計回り方向への回転が窓２５の左端で規制される。蓋体４に弁座部材７と同一軸上にプラグ２６をねじ結合する。プラグ２６に外部から進退調節可能に掃除部材２７をねじ結合する。掃除部材２７はプラグ２６を貫通し、弁口６の下流に位置する先端部が前進により弁口６を貫通して弁室５内に突出し、後端部が外部に位置する。プラグ２６と掃除部材２７の間にパッキング２８を配置し、プラグ２６にパッキング押え２９をねじ結合してプラグ２６と掃除部材２７の間の気密を保つ。掃除部材２７の先端部の外径は弁口６の内径よりも僅かに小径に形成し、掃除部材２７を前進させたときに掃除部材２７の先端部で弁口６内面を掃除する。 A valve arm shaft 17 parallel to the swing shaft 8 is spanned over the main arm 10 at a point away from the swing shaft 8, the lever shaft 11 and the main arm shaft 14, and the valve arm 18 is rotatably supported on the valve arm shaft 17. To do. The valve arm 18 is composed of two plates, and spans a valve body shaft 19 parallel to the swing shaft 8 at a point distant from the swing shaft 8, the lever shaft 11, the main arm shaft 14, and the valve arm shaft 17. A spherical center of a spherical valve body 20 that opens and closes the valve port 6 is rotatably supported on the body shaft 19. A contact portion 21 is provided on the valve arm 18, and a bolt-shaped adjusting member 22 is attached to the contact portion 21 by screw connection. When the valve body 20 closes the valve opening 6, the lever 9 contacts the contact portion 21 of the valve arm 18 via the adjustment member 22, and the valve body 20 is connected to the valve opening 6 via the adjustment member 22 and the valve arm 18. Can be pressed against. By adjusting the screwing amount of the contact member 22 into the contact portion 21, when the valve body 20 closes the valve port 6, the lever 9 reliably moves the valve body 20 through the adjustment member 22 and the valve arm 18. It can be pressed against the valve port 6. A stopper shaft 23 is spanned in the valve chamber 5, and a window 24 through which the stopper shaft 23 penetrates the lever 9 and a window 25 through which the stopper shaft 23 penetrates is opened in the main arm 10. The clockwise and counterclockwise rotation of the lever 9 due to the float 12 rising and lowering is restricted at the right and left ends of the window 24 and the main arm 10 is rotated counterclockwise at the left end of the window 25. Be regulated. A plug 26 is screwed to the lid 4 on the same axis as the valve seat member 7. A cleaning member 27 is screwed to the plug 26 so that the plug 26 can be moved forward and backward. The cleaning member 27 passes through the plug 26, and a front end portion located downstream of the valve port 6 penetrates the valve port 6 by advancing and protrudes into the valve chamber 5, and a rear end portion is positioned outside. A packing 28 is disposed between the plug 26 and the cleaning member 27, and a packing retainer 29 is screwed to the plug 26 to keep the plug 26 and the cleaning member 27 airtight. The outer diameter of the front end portion of the cleaning member 27 is formed to be slightly smaller than the inner diameter of the valve port 6, and when the cleaning member 27 is advanced, the inner surface of the valve port 6 is cleaned by the front end portion of the cleaning member 27.

流動検出器３４はドレンの流動に伴う振動や音あるいは超音波を検出するものであり、図３に示すように、本体１にねじ結合により固定されたケース４４と、ケース４４内にケース４４の軸方向に摺動自在に配置した検出針４５と、検出針４５にねじ結合した振動伝達板４６と検出針４５に挿入した電極板４７、圧電素子４８、電極板４９、ウエイト５０、防振ゴム５１と検出針４５に固定したナット５２とから成る感振素子５３と、防振ゴム５１とケース４４の上壁の間に配置され検出針４５の先端を本体１に付勢するコイルスプリング５４と、検出針４５の先端に取付けた温度センサ５５とから構成する。ドレンの流動に伴う振動や音あるいは超音波のレベルは図２に示すように、ドレンが入口２から弁室５に流入するドレン流入時よりも弁口６が開口されたときから次に弁口６が閉口されるときまでのドレンが弁口６を流下するドレン排出時が高くなる。減少判定器３５は弁口６が開口されたときから次に弁口６が閉口されるときまでの時間（Ｔ）に基いて、この時間（Ｔ）が初期に比べて例えば所定閾値としての１．２倍を上回ったときに弁口面積が減少していることを報知するアラームを発する。 The flow detector 34 detects vibration, sound or ultrasonic waves accompanying the flow of the drain. As shown in FIG. 3, a case 44 fixed to the main body 1 by screw connection, and a case 44 in the case 44. A detection needle 45 slidably disposed in the axial direction, a vibration transmission plate 46 screwed to the detection needle 45, an electrode plate 47 inserted into the detection needle 45, a piezoelectric element 48, an electrode plate 49, a weight 50, and an anti-vibration rubber 51, a vibration sensing element 53 comprising a nut 52 fixed to the detection needle 45, a coil spring 54 disposed between the anti-vibration rubber 51 and the upper wall of the case 44 and biasing the tip of the detection needle 45 toward the main body 1. The temperature sensor 55 is attached to the tip of the detection needle 45. As shown in FIG. 2, the level of vibration, sound, or ultrasonic wave accompanying the flow of the drain is as follows from the time when the valve port 6 is opened to the next time when the drain flows into the valve chamber 5 from which the drain flows into the valve chamber 5. The drain discharge time when drain until the time when 6 is closed flows down the valve port 6 becomes high. Based on the time (T) from when the valve port 6 is opened until the next time the valve port 6 is closed, the decrease determination unit 35 is, for example, 1 as a predetermined threshold value compared to the initial time. .When it exceeds 2 times, an alarm is generated to notify that the valve opening area is decreasing.

弁室５内の液位が低い場合は、図１に示すようにフロート１２は底部に位置し、弁体２０は弁口６を閉じている。このとき、レバー９は弁アーム１８の当接部２１に結合された調節部材２２に当接し、調節部材２２と弁アーム１８の当接部２１を介して弁体２０を弁口６に押し付けている。入口２から流入するドレンにより弁室５内の液位が上昇すると、フロート１２が浮上してレバー９が揺動軸８の周りに時計回り方向に回転する。レバー９の回転によりレバー軸１１が揺動軸８と主アーム軸１４を結ぶ線に近づいてコイルバネ１６を圧縮変形させ、レバー軸１１が揺動軸８と主アーム軸１４を結ぶ線を越えるとコイルバネ１６が変形を回復して、主アーム軸１４が揺動軸８とレバー軸１１を結ぶ線から遠ざかる方向に主アーム１０を反時計回り方向に回転させる。主アーム１０の回転により弁アーム１８が弁アーム軸１７の周りに回転しながら下動し、弁アーム１０の下動により弁体２０が下動して弁口６を開く。これにより、弁室５のドレンを出口３から排出する。ドレンの排出により弁室５内の液位が低下すると、フロート１２が降下してレバー９が揺動軸８の周りに反時計回り方向に回転する。レバー９の回転によりレバー軸１１が揺動軸８と主アーム軸１４を結ぶ線に近づいてコイルバネ１６を圧縮変形させ、レバー軸１１が揺動軸８と主アーム軸１４を結ぶ線を越えるとコイルバネ１６が変形を回復して、主アーム軸１４が揺動軸８とレバー軸１１を結ぶ線から遠ざかる方向に主アーム１０を時計回り方向に回転させる。主アーム１０の回転により弁アーム１８が弁アーム軸１７の周りに回転しながら上動し、弁アーム１０の上動により弁体２０が上動して弁口６を閉じる。これにより、気体の漏出を防止する。流動検出器３４はドレンの流動に伴う振動を検出する。減少検出器３５は弁口６が開口されたときから次に弁口６が閉口されるときまでの時間（Ｔ）に基いて、この時間（Ｔ）が初期に比べて例えば所定閾値としての１．２倍を上回ったときに弁口面積が減少していることを報知するアラームを発する。このとき、掃除部材２７を前進させることにより弁口６に付着堆積した異物を掃除する。 When the liquid level in the valve chamber 5 is low, as shown in FIG. 1, the float 12 is positioned at the bottom, and the valve body 20 closes the valve port 6. At this time, the lever 9 abuts on the adjusting member 22 coupled to the abutting portion 21 of the valve arm 18, and presses the valve body 20 against the valve port 6 via the abutting portion 21 of the adjusting member 22 and the valve arm 18. Yes. When the liquid level in the valve chamber 5 rises due to the drain flowing from the inlet 2, the float 12 rises and the lever 9 rotates around the swing shaft 8 in the clockwise direction. When the lever shaft 11 approaches the line connecting the swing shaft 8 and the main arm shaft 14 by the rotation of the lever 9 and compresses the coil spring 16, the lever shaft 11 crosses the line connecting the swing shaft 8 and the main arm shaft 14. The coil spring 16 recovers deformation, and the main arm shaft 14 rotates the main arm 10 counterclockwise in a direction away from the line connecting the swing shaft 8 and the lever shaft 11. The rotation of the main arm 10 causes the valve arm 18 to move downward while rotating around the valve arm shaft 17, and the downward movement of the valve arm 10 causes the valve body 20 to move downward to open the valve port 6. Thereby, the drain of the valve chamber 5 is discharged from the outlet 3. When the liquid level in the valve chamber 5 decreases due to drainage, the float 12 descends and the lever 9 rotates around the swing shaft 8 in the counterclockwise direction. When the lever shaft 11 approaches the line connecting the swing shaft 8 and the main arm shaft 14 by the rotation of the lever 9 and compresses the coil spring 16, the lever shaft 11 crosses the line connecting the swing shaft 8 and the main arm shaft 14. The coil spring 16 recovers deformation, and the main arm shaft 14 rotates the main arm 10 clockwise in a direction away from the line connecting the swing shaft 8 and the lever shaft 11. The rotation of the main arm 10 causes the valve arm 18 to move upward while rotating around the valve arm shaft 17. The upward movement of the valve arm 10 causes the valve body 20 to move upward to close the valve port 6. This prevents gas leakage. The flow detector 34 detects vibration accompanying the flow of the drain. The decrease detector 35 is based on the time (T) from when the valve port 6 is opened until the next time the valve port 6 is closed. .When it exceeds 2 times, an alarm is generated to notify that the valve opening area is decreasing. At this time, the cleaning member 27 is moved forward to clean the foreign matter that has adhered and accumulated on the valve port 6.

本発明は、蒸気配管系や圧縮空気配管系に発生するドレンをフロートを用いて自動的に排出するフロート式ドレントラップに利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used for a float type drain trap that automatically discharges drain generated in a steam piping system or a compressed air piping system using a float.

１ 本体
２ 入口
３ 出口
４ 蓋体
５ 弁室
６ 弁口
７ 弁座部材
８ 揺動軸
９ レバー
１０ 主アーム
１１ レバー軸
１２ フロート
１３ バネ受け
１４ 主アーム軸
１５ バネ受け
１６ コイルバネ
１７ 弁アーム軸
１８ 弁アーム
１９ 弁体軸
２０ 弁体
２１ 当接部
２２ 調節部材
２３ ストッパー軸
２４ 窓
２５ 窓
２７ 掃除部材
３４ 流動検出器
３５ 減少判定器 DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Outlet 4 Lid 5 Valve chamber 6 Valve port 7 Valve seat member 8 Oscillating shaft 9 Lever 10 Main arm 11 Lever shaft 12 Float 13 Spring receiver 14 Main arm shaft 15 Spring receiver 16 Coil spring 17 Valve arm shaft 18 Valve arm 19 Valve body shaft 20 Valve body 21 Contact portion 22 Adjustment member 23 Stopper shaft 24 Window 25 Window 27 Cleaning member 34 Flow detector 35 Decrease determination device

Claims (1)

入口と弁室と出口を有するケーシングと、出口の弁室側端に形成され弁室と出口を連通する弁口と、弁室内に支持された揺動軸と、揺動軸の周りに回転するレバー及び主アームと、レバーに連結され弁室の液位に応じて浮上降下するフロートと、揺動軸から離れた点においてレバーに支持され揺動軸と平行なレバー軸と、揺動軸及びレバー軸から離れた点において主アームに支持され揺動軸と平行な主アーム軸と、レバー軸及び主アーム軸の間に取付けられ両取付部が回転可能であるコイルバネと、揺動軸とレバー軸及び主アーム軸から離れた点において主アームに支持され揺動軸と平行な弁アーム軸と、弁アーム軸の周りに回転する弁アームと、弁アームに連結され弁口を開閉する弁体と、ドレンの流動に伴う振動や音あるいは超音波を検出する流動検出器と、弁口が開口されたときから次に弁口が閉口されるときまでの時間から弁口面積の減少を判定する減少判定器と、弁口内を進退して弁口に付着堆積した異物を掃除する掃除部材を具備することを特徴とするフロート式ドレントラップ。 A casing having an inlet, a valve chamber, and an outlet, a valve port formed at the end of the outlet on the valve chamber side and communicating with the valve chamber and the outlet, a swing shaft supported in the valve chamber, and rotating about the swing shaft A lever and a main arm, a float connected to the lever and rising and lowering according to the liquid level in the valve chamber, a lever shaft supported by the lever at a point away from the swing shaft and parallel to the swing shaft; A main arm shaft that is supported by the main arm at a point away from the lever shaft and is parallel to the swing shaft, a coil spring that is mounted between the lever shaft and the main arm shaft, and both mounting portions are rotatable, and the swing shaft and lever A valve arm shaft that is supported by the main arm at a point away from the shaft and the main arm shaft and is parallel to the swing shaft, a valve arm that rotates around the valve arm shaft, and a valve body that is connected to the valve arm and opens and closes the valve port And detect vibrations, sounds, or ultrasonic waves accompanying drain flow. A flow detector that detects the decrease in valve area from the time from when the valve port is opened until the next time the valve port is closed. A float drain trap comprising a cleaning member for cleaning accumulated foreign matter.
JP2013003582A 2013-01-11 2013-01-11 Float type drain trap Pending JP2014134266A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134265A (en) * 2013-01-11 2014-07-24 Tlv Co Ltd Float type drain trap
CN109538926A (en) * 2018-10-25 2019-03-29 山东联恒环境科技有限公司 A kind of LNG supercharging equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04296299A (en) * 1991-03-26 1992-10-20 Hitachi Ltd Monitoring method and device for steam trap as well as diagnostic method and device plus manufacturing line thereof
US6571180B1 (en) * 1997-04-11 2003-05-27 Keystone International Holding Corp. Self-contained steam trap monitor
JP2008020045A (en) * 2006-07-14 2008-01-31 Tlv Co Ltd Drain trap
JP2011163545A (en) * 2010-02-15 2011-08-25 Tlv Co Ltd Liquid pumping device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04296299A (en) * 1991-03-26 1992-10-20 Hitachi Ltd Monitoring method and device for steam trap as well as diagnostic method and device plus manufacturing line thereof
US6571180B1 (en) * 1997-04-11 2003-05-27 Keystone International Holding Corp. Self-contained steam trap monitor
JP2008020045A (en) * 2006-07-14 2008-01-31 Tlv Co Ltd Drain trap
JP2011163545A (en) * 2010-02-15 2011-08-25 Tlv Co Ltd Liquid pumping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134265A (en) * 2013-01-11 2014-07-24 Tlv Co Ltd Float type drain trap
CN109538926A (en) * 2018-10-25 2019-03-29 山东联恒环境科技有限公司 A kind of LNG supercharging equipment

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