JP5183682B2 - Float type steam trap - Google Patents

Float type steam trap Download PDF

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JP5183682B2
JP5183682B2 JP2010151032A JP2010151032A JP5183682B2 JP 5183682 B2 JP5183682 B2 JP 5183682B2 JP 2010151032 A JP2010151032 A JP 2010151032A JP 2010151032 A JP2010151032 A JP 2010151032A JP 5183682 B2 JP5183682 B2 JP 5183682B2
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condensate
valve
float
partition wall
casing
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JP2012013164A (en
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政貴 村田
修英 加藤
洋輔 柴田
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株式会社ヨシタケ
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Description

本発明は、フロート式スチームトラップに関する。   The present invention relates to a float type steam trap.

従来、この種のトラップは、そのケーシング内に先端にフロートを備えたレバーの基端部を枢支し、該レバー基端に弁口を開閉する弁体を取付けて成り、復水の増減によるフロートの上下動により弁体が弁口を開閉して復水を外部へ排出する様に成している（例えば、特許文献１参照）。   Conventionally, this type of trap is constructed by pivotally supporting the base end of a lever having a float at the tip in the casing and attaching a valve body for opening and closing the valve opening to the lever base end. The valve body opens and closes the valve port by the vertical movement of the float and discharges the condensed water to the outside (see, for example, Patent Document 1).

実公昭５０−２７６２５号公報Japanese Utility Model Publication No. 50-27625

しかしながら、上記構成のトラップは、フロートが復水の増減で上下動する構成であるため、フロートを支持するレバーの上下揺動が可能となる様にその天地が定められており、配管するにあたっては、その取付け姿勢が限定される。
したがって、取付け位置近傍に併設される他の配管、機器類や壁等に近接又は接触しない様に周辺機器及び取付け場所等との調和を図るだけでなく、更に限定されるその取付け姿勢を考慮して配管せねばならず、作業が一層面倒で作業効率が悪いといった不具合を有していた。 However, the trap with the above configuration is configured so that the float moves up and down by increasing or decreasing the condensate, so the top and bottom are determined so that the lever supporting the float can swing up and down. The mounting posture is limited.
Therefore, not only is it harmonized with peripheral equipment and installation locations so that they are not close to or in contact with other pipes, equipment, walls, etc., installed near the installation position, but further consideration is given to their limited installation attitude. Therefore, the work had to be troublesome and the work efficiency was poor.

上記課題に鑑み、本発明のフロート式スチームトラップは、入口に連通する復水貯留部と出口に連通する復水排出部とにケーシング内部を気密状に二分すると共に、復水貯留部と復水排出部に連通する弁口が貫設され、復水貯留部に収容されて復水の増減に応じ弁口を開閉するフロート弁を備えた仕切壁と、ケーシングとを周方向で相互に相対回転可能に設け、仕切壁は復水排出部側の壁面中心に復水排出部より外方突出する支軸を設け、該支軸の突端を固定手段にて復水排出部外側に固定して成り、支軸の突端面にはフロート弁の天地がわかる目印を設けたことを特徴とする。
又、ケーシングは、内部空間を復水貯留部とする弁箱と、該弁箱内部に向き合う内側が陥没形成された凹状空間を復水排出部とし、固定手段によって仕切壁を着脱自在に備えた蓋体とを接合して成るのがより良い。 In view of the above problems, the float steam trap of the present invention bisects the inside of the casing in an airtight manner into a condensate storage part communicating with the inlet and a condensate discharge part communicating with the outlet, and the condensate storage part and the condensate A valve port that communicates with the discharge part is penetrated, and the partition wall, which is housed in the condensate storage part and has a float valve that opens and closes the valve port according to the increase or decrease of the condensate, and the casing rotate relative to each other in the circumferential direction. capable provided, the partition wall is a support shaft to outwardly protrude from the condensate discharging portion provided on a wall surface center of condensate water discharge portion comprises fixed to the outer condensate water discharge unit by fastening means the tip of said supporting shaft In addition, the protruding end face of the support shaft is provided with a mark for identifying the top and bottom of the float valve .
In addition, the casing includes a valve box having an internal space as a condensate storage part, and a concave space in which the inside facing the valve box is recessed and formed as a condensate discharge part, and a partition wall is detachably provided by a fixing means. It is better to join the lid.

要するに本発明は、入口に連通する復水貯留部と出口に連通する復水排出部とにケーシング内部を気密状に二分すると共に、復水貯留部と復水排出部に連通する弁口が貫設され、復水貯留部に収容されて復水の増減に応じ弁口を開閉するフロート弁を備えた仕切壁と、ケーシングとを周方向で相互に相対回転可能に設けたので、フロート弁による弁口の開閉に支障が無い様に、そのフロート弁の正しい体裁を常に保持すべく、フロート弁が備えられた仕切壁に対しケーシングを３６０度自由に回転できる。
よって、ケーシングの入口と出口を配管接続可能な方向へ難なく指向させられ、配管接続できるため、配管に対する据付けが簡便で、スムーズに配管作業を進行でき、その作業効率を飛躍的に向上できる。 In short, the present invention bisects the inside of the casing in an airtight manner into a condensate storage portion communicating with the inlet and a condensate discharge portion communicating with the outlet, and a valve port communicating with the condensate storage portion and the condensate discharge portion penetrates. A partition wall provided with a float valve that is accommodated in the condensate reservoir and opens and closes the valve port according to the increase or decrease of the condensate and a casing are provided so as to be relatively rotatable in the circumferential direction. The casing can be freely rotated 360 degrees with respect to the partition wall provided with the float valve so as to always maintain the correct appearance of the float valve so that the opening and closing of the valve opening is not hindered.
Therefore, since the inlet and outlet of the casing can be oriented without difficulty in the direction in which the pipe can be connected and can be connected to the pipe, installation to the pipe is simple and the piping work can proceed smoothly, and the work efficiency can be dramatically improved.

仕切壁は復水排出部側の壁面中心に復水排出部より外方突出する支軸を設けたので、配管への設置に際しては、支軸を中心にしてケーシングを回転させることにより、簡単容易に入口と出口の夫々を接続対象の配管に指向させられ、その後は、支軸の突端を固定手段にて復水排出部外側に固定すれば、配管接続時及び使用状態で仕切壁が勝手に回転することがなく、フロート弁を常に正常に動作させられる。   Since the partition wall is provided with a support shaft that protrudes outward from the condensate discharge part at the center of the wall on the condensate discharge part side, when installing on the pipe, it is easy and easy by rotating the casing around the support shaft. If both the inlet and outlet are directed to the pipe to be connected, and then the tip of the support shaft is fixed to the outside of the condensate discharge part by a fixing means, the partition wall can be used freely when the pipe is connected and in use. The float valve is always operated normally without rotating.

支軸の突端面にフロート弁の天地がわかる目印を設けたので、外部から確認できなくても、正確にして確実にフロート弁の正常な体裁が目印によって判断され、支軸に対するケーシングの回転作業が確実にして素早く行える。
Since the mark that shows the top and bottom of the float valve is provided on the tip of the support shaft, the correct appearance of the float valve can be accurately and reliably determined by the mark even if it cannot be confirmed from the outside, and the casing can be rotated relative to the support shaft. Is quick and reliable.

又、ケーシングは、内部空間を復水貯留部とする弁箱と、該弁箱内部に向き合う内側が陥没形成された凹状空間を復水排出部とし、固定手段によって仕切壁を着脱自在に備えた蓋体とを接合して成るので、概ね、弁箱、フロート弁を備えた仕切壁と蓋体の三大構成要素を組み付けるだけで、簡単容易に本発明に係るフロート式スチームトラップを構成できる等その実用的効果甚だ大である。   In addition, the casing includes a valve box having an internal space as a condensate storage part, and a concave space in which the inside facing the valve box is recessed and formed as a condensate discharge part, and a partition wall is detachably provided by a fixing means. Since the lid is joined, the float steam trap according to the present invention can be configured easily and simply by assembling the three major components of the valve box, the partition wall provided with the float valve and the lid. Its practical effect is enormous.

本発明に係るフロート式スチームトラップの正面図である。It is a front view of the float type steam trap concerning the present invention. 蓋体と仕切壁を除いた状態の弁箱の正面図である。It is a front view of a valve box in the state where a lid and a partition wall were removed. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 図１の状態から支軸に対しケーシングを９０度回転した状態の正面図である。It is a front view of the state which rotated the casing 90 degree | times with respect to the spindle from the state of FIG. 図５において蓋体と仕切壁を除いた状態の弁箱の正面図である。FIG. 6 is a front view of the valve box in a state where a lid and a partition wall are removed in FIG. 5. 図５のＣ−Ｃ断面図である。It is CC sectional drawing of FIG. 図５のＤ−Ｄ断面図である。It is DD sectional drawing of FIG.

以下本発明の実施の一形態例を図面に基づいて説明する。
本発明に係るフロート式スチームトラップは、ケーシング１内に復水の増減に応じ開閉弁するフロート弁２を収容している。 An embodiment of the present invention will be described below with reference to the drawings.
The float type steam trap according to the present invention accommodates a float valve 2 that opens and closes in accordance with increase or decrease of condensate in a casing 1.

ケーシング１は、一側方が円筒状に開口された横手に長い弁箱３と、該弁箱３の開口部3aを気密状に閉塞する蓋体４とから成る。
弁箱３における開口部側周壁3bの適所（図示例では開口部の直径線上）には、上流管（図示せず）に接続される入口５と下流管（図示せず）に接続される出口６とが配置されている。
蓋体４は弁箱３内部に向き合う内側が凹状に陥没形成され、蓋体４と弁箱３とはボルト７、7a…によって接合固定されている。 The casing 1 is composed of a long valve box 3 which is open on one side in a cylindrical shape and a lid 4 which closes an opening 3a of the valve box 3 in an airtight manner.
An inlet 5 connected to an upstream pipe (not shown) and an outlet connected to a downstream pipe (not shown) are disposed at appropriate positions (on the diameter line of the opening in the illustrated example) of the opening side peripheral wall 3b in the valve box 3. 6 are arranged.
The inner side of the lid 4 facing the inside of the valve box 3 is recessed and formed, and the lid 4 and the valve box 3 are joined and fixed by bolts 7, 7 a.

ケーシング１内部は、弁箱開口部3aに内接配置した円板状の仕切壁８にて、入口５が直接に連通する弁箱３の洞穴状の内部空間（以下、復水貯留部９と称する。）と、弁箱３の開口部側周壁3bと蓋体４の内側周面の適所に穿設された連通路10、10ａを介して出口６が連通する蓋体４内側の凹状空間（以下、復水排出部11と称する。）とに気密状に二分している。   The inside of the casing 1 is a cave-shaped inner space (hereinafter referred to as a condensate storage portion 9 and a condensate storage portion 9) of the valve box 3 in which the inlet 5 communicates directly with a disc-shaped partition wall 8 inscribed in the valve box opening 3 a. And a concave space inside the lid body 4 through which the outlet 6 communicates via communication passages 10 and 10a drilled at appropriate positions on the opening side peripheral wall 3b of the valve box 3 and the inner peripheral surface of the lid body 4 (refer to FIG. Hereinafter, it is divided into two in an airtight manner.

仕切壁８は、復水排出部11側の壁面中心に復水排出部11より外方突出することにて蓋体４中心を貫通する支軸12を設けている。
そして、仕切壁８とケーシング１（弁箱３及び蓋体４）とは支軸12を中心に周方向で相互に相対回転可能に設けている。 The partition wall 8 is provided with a support shaft 12 that penetrates the center of the lid body 4 by protruding outward from the condensate discharge portion 11 at the center of the wall surface on the condensate discharge portion 11 side.
The partition wall 8 and the casing 1 (the valve box 3 and the lid body 4) are provided so as to be relatively rotatable with respect to each other in the circumferential direction around the support shaft 12.

支軸12の突端は、固定手段13となるロックナットにて復水排出部11外側、即ち蓋体４の外側中心に固定され、固定手段（ロックナット）13の締め外しによって仕切壁８を蓋体４に着脱自在と成している。   The protruding end of the support shaft 12 is fixed to the outside of the condensate discharge portion 11 by the lock nut that becomes the fixing means 13, that is, the outer center of the lid body 4, and the partition wall 8 is covered by tightening the fixing means (lock nut) 13. The body 4 is detachable.

又、仕切壁８は下部に復水貯留部９と復水排出部11に連通する弁口14が貫設されると共に、復水貯留部９に収容されて復水の増減に応じ弁口14を開閉するフロート弁２を備えている。
フロート弁２は、球形のフロート15を先端に固定したレバー16の基端側を下方垂直に屈曲して仕切壁８に対向配置し、該基端側において、仕切壁８との対向面には、その中央に半球状の弁体17を突設すると共に、該弁体17より上方左右に支持片18、18ａを突設している。 The partition wall 8 is provided with a valve port 14 communicating with the condensate storage unit 9 and the condensate discharge unit 11 in the lower part thereof. Is provided with a float valve 2 for opening and closing.
The float valve 2 has a base end side of a lever 16 having a spherical float 15 fixed at the tip thereof and is bent vertically downward so as to face the partition wall 8. In addition, a hemispherical valve body 17 protrudes from the center of the valve body, and support pieces 18 and 18a protrude from the left and right above the valve body 17.

そして、弁口14の復水貯留部９側を仕切壁８の壁面より突出形成し、その開口部周囲に弁体17が着離する弁座19を形成し、仕切壁８において、弁座19の左右上方に設けた突片20、20ａの内側にレバー16の支持片18、18ａを重ね合わせて、該支持片18、18ａ及び突片20、20ａを支持ピン21で横貫することにより、レバー16を上下揺動自在にして、且つ弁体17を弁座19に着離自在に設けている。
尚、支軸12の突端適所（図示例では、突端面）にフロート弁２の天地がわかる目印（図示例では上向き矢印）22を設けている。 Then, the condensate reservoir 9 side of the valve port 14 is formed so as to protrude from the wall surface of the partition wall 8, and a valve seat 19 to which the valve body 17 is attached and detached is formed around the opening. By overlapping the support pieces 18 and 18a of the lever 16 on the inner side of the projecting pieces 20 and 20a provided on the left and right sides of the lever, the support pieces 18 and 18a and the projecting pieces 20 and 20a are passed through the support pin 21 so that the lever The valve body 17 is provided on the valve seat 19 so as to be freely attached and detached.
In addition, a mark (upward arrow in the illustrated example) 22 for providing the top and bottom of the float valve 2 is provided at a proper position (in the illustrated example, the projected end surface) of the support shaft 12.

この様に構成されたフロート弁２は、復水貯留部９内の復水が小量の時には、弁体17が弁座19に着座して閉弁し、復水の増水で水位が設定値より上昇すると、浮上するフロート15によってレバー16が上方揺動し、弁体17が弁座19から離脱して開弁し、復水は弁口14から順に復水排出部11、連通路10ａ、10と経て出口６より下流管へ排出され、この排水により復水の水位が降下することでフロート15が下方揺動して復位し、弁体17を弁座19に着座させて閉弁する。   In the float valve 2 configured in this manner, when the condensate in the condensate reservoir 9 is small, the valve body 17 is seated on the valve seat 19 and is closed, and the water level is set by increasing the condensate. When it rises further, the lever 16 swings upward by the float 15 that floats, the valve body 17 is disengaged from the valve seat 19 and opened, and the condensate is in order from the valve port 14, the condensate discharge part 11, the communication path 10 a, Through 10, the water is discharged from the outlet 6 to the downstream pipe, and the water level of the condensate is lowered by the drainage. As a result, the float 15 swings downward and returns, and the valve body 17 is seated on the valve seat 19 and closed.

又、復水貯留部９内において仕切壁８の上部には、復水貯留部９と復水排出部11に連通する空気流通口23を貫設し、復水貯留部９の内部の温度変化に応じ空気流通口23を開閉して低温空気を排出し、蒸気は排出しない空気抜き弁24を備えている。
空気抜き弁24は、上記の様に仕切壁８において復水貯留部９側の壁面上部に取付けられ、復水貯留部９内の低温空気を復水排出部11を通じて外部へ排気して、復水貯留部９内の蒸気を排出しないものであれば、従前の構成から成るもので良く、図中の構成に限定されないのでその具体的説明を省略する。 In addition, an air circulation port 23 communicating with the condensate storage unit 9 and the condensate discharge unit 11 is provided in the upper part of the partition wall 8 in the condensate storage unit 9 so as to change the temperature inside the condensate storage unit 9. Accordingly, an air vent valve 24 that opens and closes the air circulation port 23 to discharge low-temperature air and does not discharge steam is provided.
As described above, the air vent valve 24 is attached to the upper portion of the wall on the condensate reservoir 9 side in the partition wall 8, and exhausts the low-temperature air in the condensate reservoir 9 to the outside through the condensate discharge unit 11. As long as the steam in the reservoir 9 is not discharged, it may have the conventional configuration, and is not limited to the configuration in the figure, and therefore its specific description is omitted.

尚、図中、25は復水弁箱開口部3a内周に配した入口５用の所定メッシュの編み目状スクリーン、26は弁箱３と蓋体４間に介装したガスケット、27は仕切壁８と蓋体４間に介装したガスケット、28は支軸12に周設したＯリングである。   In the figure, 25 is a mesh screen of a predetermined mesh for the inlet 5 disposed on the inner periphery of the condensate valve box opening 3a, 26 is a gasket interposed between the valve box 3 and the lid 4 and 27 is a partition wall. A gasket 28 interposed between the cover 8 and the cover 4 is an O-ring provided around the support shaft 12.

上記の様に構成されたフロート式スチームトラップにあっては、配管への設置に際し、ロックナット13を螺退して支軸12から取り外し、該支軸12に設けた矢印（目印）22を上方垂直に指向させた状態で、その入口５と出口６を配管接続可能な方向へ指向する様にケーシング１を支軸12を中心として回転させる。
例えば、図１〜４に示す状態では入口５と出口６が上下に指向しているが、これを支軸12を中心として９０度回転させることにより、図５〜８に示す様に入口５と出口６を左右に指向させられる。 In the case of the float type steam trap configured as described above, when installing in the pipe, the lock nut 13 is screwed out and removed from the support shaft 12, and the arrow (mark) 22 provided on the support shaft 12 is moved upward. In a state of being oriented vertically, the casing 1 is rotated around the support shaft 12 so that the inlet 5 and the outlet 6 are oriented in a direction in which the pipe can be connected.
For example, in the state shown in FIGS. 1 to 4, the inlet 5 and the outlet 6 are directed vertically, but by rotating them 90 degrees around the support shaft 12, as shown in FIGS. The outlet 6 can be directed left and right.

上記の様にケーシング１が回転しても、その内部に配した仕切壁８は動作せず、該仕切壁８の上下に取付けた空気抜き弁24とフロート弁２も、当然ながらその上下関係が変わることはないし、入口５と出口６の向きが変わるが、復水及び空気の流通経路（入口５、復水貯留部９、空気流通口23、弁口14、復水排出部11、連通路10、10ａ及び出口６）も変わらない。
よって、フロート弁２におけるフロート15及びレバー16が上下に揺動して支障なく弁口14を開閉できる様に、正しい体裁が常に保持される。
次に、ロックナット13を支軸12に螺着して締め付けることにより、ケーシング１と仕切壁８を相互に回転不能状態とし、ケーシング１の上記回転によって方向が変換された入口５と出口６を上流管と下流管に接続することで、配管へのケーシング１の据付け作業が完了する。 Even when the casing 1 rotates as described above, the partition wall 8 disposed in the casing 1 does not operate, and the air vent valve 24 and the float valve 2 mounted on the upper and lower sides of the partition wall 8 naturally change their vertical relationship. However, the directions of the inlet 5 and the outlet 6 are changed, but the condensate and air circulation path (inlet 5, condensate storage part 9, air circulation port 23, valve port 14, condensate discharge part 11, communication path 10 10a and outlet 6) remain unchanged.
Therefore, the correct appearance is always maintained so that the float 15 and the lever 16 in the float valve 2 can swing up and down to open and close the valve port 14 without any trouble.
Next, the lock nut 13 is screwed onto the support shaft 12 and tightened to make the casing 1 and the partition wall 8 non-rotatable with each other, and the inlet 5 and the outlet 6 whose directions are changed by the rotation of the casing 1 are formed. By connecting the upstream pipe and the downstream pipe, the installation work of the casing 1 to the pipe is completed.

１ ケーシング
２ フロート弁
３ 弁箱
４ 蓋体
５ 入口
６ 出口
８ 仕切壁
９ 復水貯留部
11 復水排出部
12 支軸
13 固定手段
14 弁口
22 目印 DESCRIPTION OF SYMBOLS 1 Casing 2 Float valve 3 Valve box 4 Cover body 5 Inlet 6 Outlet 8 Partition wall 9 Condensate storage part
11 Condensate discharge section
12 Spindle
13 Fixing means
14 Valve
22 Placemark

Claims (2)

入口に連通する復水貯留部と出口に連通する復水排出部とにケーシング内部を気密状に二分すると共に、復水貯留部と復水排出部に連通する弁口が貫設され、復水貯留部に収容されて復水の増減に応じ弁口を開閉するフロート弁を備えた仕切壁と、ケーシングとを周方向で相互に相対回転可能に設け、仕切壁は復水排出部側の壁面中心に復水排出部より外方突出する支軸を設け、該支軸の突端を固定手段にて復水排出部外側に固定して成り、支軸の突端面にフロート弁の天地がわかる目印を設けたことを特徴とするフロート式スチームトラップ。 The inside of the casing is divided in an airtight manner into a condensate storage part communicating with the inlet and a condensate discharge part communicating with the outlet, and a valve port communicating with the condensate storage part and the condensate discharge part is provided through the condensate. A partition wall provided with a float valve that opens and closes the valve opening according to the increase or decrease of the condensate and a casing are provided so as to be relatively rotatable in the circumferential direction, and the partition wall is a wall surface on the condensate discharge section side. A support shaft that protrudes outward from the condensate discharge portion is provided at the center, and the tip of the support shaft is fixed to the outside of the condensate discharge portion by a fixing means. Float type steam trap characterized by having provided . ケーシングは、内部空間を復水貯留部とする弁箱と、該弁箱内部に向き合う内側が陥没形成された凹状空間を復水排出部とし、固定手段によって仕切壁を着脱自在に備えた蓋体とを接合して成ることを特徴とする請求項１記載のフロート式スチームトラップ。 The casing has a valve box having an internal space as a condensate storage part, and a concave body in which a concave space formed in a concavity facing the inside of the valve box is formed as a condensate discharge part, and a lid provided with a partition wall detachably by a fixing means claim 1, wherein the float steam trap, characterized in that formed by joining and.
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JP5394439B2 (en) * 2011-05-31 2014-01-22 株式会社ヨシタケ Float type steam trap

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