JP3853548B2 - Air quantity distribution adjustment valve - Google Patents

Air quantity distribution adjustment valve Download PDF

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JP3853548B2
JP3853548B2 JP30992799A JP30992799A JP3853548B2 JP 3853548 B2 JP3853548 B2 JP 3853548B2 JP 30992799 A JP30992799 A JP 30992799A JP 30992799 A JP30992799 A JP 30992799A JP 3853548 B2 JP3853548 B2 JP 3853548B2
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valve
seat
distribution
air
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JP2001124224A (en
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薫 宮田
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株式会社宮田工業所
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Description

【0001】
【発明の属する技術分野】
本発明は、主にブロアポンプから供給される空気を分配して流出させるために使用される空気量の分配調整弁に関するものである。
【0002】
【従来の技術】
従来、汚水浄化槽では、槽外に設置したブロアポンプからの空気の供給を受けて、汚水処理の二次処理槽に浸漬した散気装置からの曝気により、好気処理を行なったり、或いは、二次処理水や一次処理水を汲み上げるエアリフト装置への空気の供給が行われている。
その場合、空気量の調整は、配管途中に設けた二方コックや玉形弁やアングル弁等を開閉操作することで流量調整している。
【0003】
【発明が解決しようとする課題】
その為、流量調整を必要とする配管途中の全てに前記調整弁を介在させる必要があり、結果として、数多くの調整弁が組み込まれることで配管系を構成している。例えば、汚水浄化槽の二次処理槽の槽内に、図8に示すように2系統の散気装置A、Bが設けられている場合、従来では、個々の散気系統ごとに調整弁を介在させることで、ブロアポンプからの空気量を個別に調整しており、不効率なものとなっている。
そこで、本発明は、前記の散気装置の空気供給管の分岐箇所に装着され、流入空気量を分配調整して流出可能とする空気量の分配調整弁を提供することを目的としている。
【0004】
【課題を解決するための手段】
本発明の空気量の分配調整弁は、上記の目的を達成するため次の手段を採った。すなわち、ブロアポンプから汚水処理槽内に設けられた2系統の散気装置への分岐部に設けられる空気量の分配調整弁であって、前方へ突出した流入管1と左右側方へ分岐した流出管2,3からなるT字型の管継ぎ手Tと、該管継ぎ手Tの合流部を平面視して斜め十文字状に区画した隔壁4により扇形状に区画した分割桝Mと、該分割桝Mの上部側に突出した筒状の弁室Hとによりバルブケーシングを形成し、該弁室Hの内部に嵌め込まれ、該分割桝Mと上下に連通自在とする流入口と流出口を備えた分配座盤と、該分配座盤の流出口の開口度を調節するため、底面に扇形バルブ33を形成した回転バルブVと、該回転バルブVと該分配座盤を圧接し、かつ弁室Hを密閉するために嵌合した蓋体37と、該蓋体37上に突出した回転バルブVのバルブロッド29に設けた操作レバー41と、からなることを特徴としている。
【0005】
また、請求項2では、前記分配座盤を、スペーサー座盤12とその上下面に合着したパッキン座盤13,14とで構成し、それぞれ平面視して外周部を環状に形成して、その内側を十文字状に区画して、その1区画を流入口とし、他の2区画を流出口に形成し、かつ、該スペーサ−座盤12の流出口を三ヶ月状乃至楔状の孔形態としたことを特徴としている。
【0007】
【発明の実施の形態】
以下、本発明の実施の形態を、図1(a)〜(c)に示す分配調整弁の各図と、図2に示す分配調整弁の縦断正面図と、図3〜図6に示す分配調整弁の構成部品の分解斜視図と、図7(a)〜(c)に示すバルブケーシングの各図に基づいて説明する。
【0008】
先ず、バルブケーシングCは、図1(a)〜(c)の各図と、図3に示す斜視図、並びに、図7(a)〜(c)の各図に示すように、本体の前部位置から前方へ突設した流入管1に対し、本体の左右両側位置から側方に流出管2、3を分岐突設した平面T字型の管継ぎ手Tと、当該管継ぎ手T内部の合流部付近をほぼ有底円筒状に形成し、その筒内部を隔壁4により平面視して斜め十文字状に区画形成した分割桝Mと、当該分割桝Mの上部側に突出形成され、当該分割桝Mの内径より一回り内径を大きくした円筒状の弁室Hとからなる。
【0009】
5は上下ほぼ中間位置を段付き状とする中心軸であって、前記流入管1と流出管2、3との合流部に形成した分割桝Mの中央位置から、前記弁室Hの中心にかけて鉛直に突設している。
【0010】
従って、分割桝Mは、前記中心軸5の下半部と分割桝Mの内壁面との間を、隔壁4により区画形成され、前記流入管1と連通する扇形状の流入室6と、前記流出管2、3と連通する扇形状の流出室7、8と、また、背面側に区画した空気連通しない扇形状の空間室9とからなり、これらの各室6〜9の上部を弁室Hに向かって開放している。
【0011】
また、分割桝Mの上縁部で、弁室Hの底部位置には、内外周を円環状とする環状座部と、隔壁4の上縁の放射座部とからなる、丸に十文字状の上縁座部10が形成され、その上縁座部10には、底の浅い凹状係合溝11を縁取り形成している。
【0012】
次に、図2と図4において、Dは前記弁室Hの内部に落とし込まれ、その中心を前記中心軸5に嵌挿支持する流量の分配座盤であって、合成樹脂製のスペーサー座盤12と、その上下面に重ね合わせて合着するゴム質製のパッキン座盤13、14とからなる。
このパッキン座盤13、14とスペーサー座盤12は、図4に示すように、平面視して内外周部を円環状に形成され、その間を斜め十文字状に区画形成した、丸に十文字状の平面形態に成型している。
【0013】
その内、スペーサ−座盤12は、パッキン座盤13、14の間に挟着支持され、前記分割桝Mの流入室6と流出口7、8とを、それぞれ上下に連通自在とする扇形状の流入口15と流出口16、17が三方に形成され、その背面側には、上部側のパッキン座盤13と係合する扇形状の係合口18を開口形成すると共に、その上面と下面の合着面の中心位置には、底の浅い凹状係合溝19を縁取り形成した状態に凹設している。
【0014】
20はスペーサ−座盤12の前縁部を弧状に切り落とし形成した係合凹部であって、その左右位置が、図7(a)に示す弁室Hの前部側の内壁面に縦設した係合突条28に嵌め込まれることで位置固定される。
【0015】
また、上下のパッキン座盤13、14は、同一の構造形態を呈し、前記スペーサ−座盤12の場合と同様に、前記分割桝Mの流入室6と流出口7、8、並びに、前記スペーサ−座盤12の流入口15と流出口16、17と、それぞれ上下に連通自在とする扇形状の流入口21と流出口22、23が三方に形成され、その背面側を扇形状に閉成した蓋部24とし、当該扇形蓋部24の下面に扇形状の係合突起25を形成すると共に、その上面と下面の合着面の中心位置には、内外を円形状とする、丸に十文字状の係合突条26を形成している。
【0016】
27はパッキン座盤13、14の前縁部の3ヶ所に凹設した位置決め用の係合凹部であって、前記弁室Hの係合突条28に係合案内されて嵌め込まれ、これにて位置固定される。
【0017】
そこで、中間部のスペーサー座盤12と、その上下面に合着したパッキン座盤13、14の3枚を、重ね合わせた上で中心軸5に貫挿して弁室Hに嵌め込むか、或いは、前記分割桝Mの上縁座部10に下部側のパッキン座盤14を載置し、その上にスペーサ−座盤12を載置し、最後に上部側のパッキン座盤13を嵌め込むことにより、弁室Hの内部に順次3枚の分配座盤Dを位置固定して嵌め込む。
【0018】
その際、分割桝Mの上縁座部10の係合溝11、前記したパッキン座盤13、14の上下合着面の係合突条26、スペーサ−座盤12の上下合着面の係合溝19が、相互に嵌まり込み、また、これらのパッキン座盤13、14とスペーサ−座盤12が、弁室Hの係合突条28に位置固定されて嵌め込まれることにより、弁室Hの底部位置に分配座盤Dが位置ズレしないように組み付けられる。
【0019】
次に、図2と図5(a)、(b)において、29は回転バルブVのバルブロッドであって、その下半部の中心軸30の上部位置には、円盤状の密閉用上蓋31が形成され、その下部位置には、前記上蓋31との間隔保持片32を介して、前記中心軸30の底部に回転バルブVを形成している。
この回転バルブVは、その後部側位置に形成した扇形盤状のバルブ33(以下、扇形バルブという)と、当該扇形バルブ33の両側位置から前部側にかけての外周部を円弧状に形成した円環枠34とからなる。
従って、円環枠34と中心軸30との間には、円弧状の連通口35が形成され、また、上蓋31と回転バルブVの間には、図2に示すように、連通口35と連通する空間室36が形成される。
【0020】
また、図1の各図と図2と図6において、37は前記バルブケーシングCの弁室Hに嵌合する円筒状の蓋体であって、その上面中央部に嵌合口38が形成され、その嵌合口38の裏面外周位置にはOリング39が嵌着され、また、蓋体37の内壁面の2ヶ所には、位置決め用の係合突条(図示せず)を縦設している。
【0021】
そこで、蓋体37の嵌合口38に、下端部に回転バルブVを形成したバルブロッド29を、当該蓋体37の下部から突き上げて嵌挿し、当該バルブロッド29に形成した上蓋31を、前記0リング39に圧着状態にして嵌め込む。
その上、当該バルブロッド29を組み付けた蓋体37内壁面の係合突条を、弁室Hの外壁面の2ヶ所に凹設した係合溝40と合致させて嵌め込むことにより、図2に示すように、バルブケーシングCの弁室Hに蓋体37が冠着される。
その際、バルブロッド29の下端部の回転バルブVは、上部側のパッキン座盤13の上面に押し付けられ、回転自在に圧着される。
【0022】
41は回転バルブVの操作部材、具体的には、操作レバーであって、その回転中心位置に矩形孔42が形成され、前記蓋体37の上部へ突出したバルブロッド29の角軸43に嵌合固定する。44は操作レバー41の指針、45は袋ナットであって、バルブロッド29の先端軸に螺合することで、操作レバー41を含む蓋体37を抜け止め支持する。46は蓋体37の後部上面に形成した目盛りであって、操作レバー41の正逆回転により、流出管2、3からの流量割合を示す数値の目安を、%表示している。
【0023】
次に、図8に示すように、汚水浄化槽の二次処理槽に配管した2系統の散気装置A、Bの配管系の分岐部に、上記の空気量の分配調整弁を接続し、その流入管1にブロアポンプ(図示せず)からの空気供給管を接続し、分岐した流出管2、3にそれぞれの散気装置A、Bへの空気供給管を接続した状態とした場合における作用について説明する。
【0024】
先ず、操作レバー41の指針44が、図1(a)に示すように、目盛り46の中心部の数値「50」を指すとき、バルブロッド29の下端部の回転バルブVの扇形バルブ33と、上部側パッキン座盤13の扇形状の蓋部24とが上下に合着される。このときの状態を平面的に表現すれば、図9(a)に示すような重なり合い状態となる。
【0025】
すると、流入管1からの流入空気は、分割桝Mの流入室6、分配座盤Dにおける下部側パッキン座盤14の流入口21、スペーサー座盤12の流入口15、上部側パッキン座盤13の流入口21を通過して、回転バルブVの連通口35からその空間室36にかけて吹き上がり、次いで、上部側パッキン座盤13の左右の流出口22、23に分岐して流れ、スペーサ−座盤12の流出口16、17、下部側パッキン座盤14の流出口22、23から、分割桝Mの左右の流出室7、8に向かって降流し、流出管2、3から散気装置A、Bへ向かって空気供給される。従って、操作レバー41が、図9(a)に示す、左右の回転角度が「零度」のとき、流入管1からの空気量は、左右の流出管2、3からそれぞれ50%の流量が散気装置A、Bへ送り込まれる。
【0026】
同様に、図9(b)〜(f)に示すように、操作レバー41を半時計方向へ15度刻みに回転したとすると、それに応じて回転する回転バルブVの扇形バルブ33により、上部側パッキン座盤13の左側の流出口22の開口度が順次狭められるに対し、右側の流出口23の開口度を変更しない上に、当該パッキン座盤13の後部位置が蓋部24で閉成されていることから、狭められた流出口22の残りの開口面積と、流出口23の開口面積にそれぞれ比例した空気量が、それぞれの流出管2、3から送り出されることになる。
【0027】
また、図9(g)、(h)の状態、特に、図9(h)に示すように、操作レバー41を90度回転した場合には、左側の流出口22が完全に閉成されることから、流入管1から流入口21へ吹き上がった空気量の全量が、右側の流出口23から流出する。
従って、この場合には、流出管2に配管した散気装置Aへの空気供給が停止され、他方、流入管1からの流入する空気量の全量が、流出管3に配管した散気装置Bへ送り込まれる。
【0028】
前記のように、スペーサ−座盤12の流出口16、17を、扇形状の孔形態とした場合における流量特性は、流量「50%」の縦軸と横軸を基準にして、図11に示す、引き出し図形を「扇形孔」とする場合に示すようなラインを描くことになる。
従って、「扇形孔」の場合には、操作レバー41の正逆回転に伴う流出量の変動がかなり大きい。
【0029】
そこで、その流量変動の割合を抑える観点から、また、前記とは異なる流量特性を発揮する変形例として、そのスペーサ−座盤12を、図10(a)〜(c)に示すように変更する。
具体的には、スペーサ−座盤12における流出口16、17の内側の一部を塞ぐ、拡開円弧状の翼板47を付加し、これにより、流出口16、17を三ヶ月状乃至楔状の孔形態に開口している。
この孔形態とした場合における流量特性は、図11に示す、引き出し図形を「三ヶ月孔」とする場合に示すようなラインを描くことになり、前記した扇形状の孔形態の場合に比して、右45度の仮想ラインに近い流量特性を発揮する。
斯様に、本発明の分配調整弁により、前記の場合と異なる流量特性を発揮させるには、分配座盤Dにおけるスペーサ−座盤12の流出口16、17の孔形態を、随時、変更することとすれば、当業界のユーザーの希望に手軽に応えることができる。
【0030】
【発明の効果】
本発明の空気量の分配調整弁は上記のように構成したので、流入量の全量を、効率良く比例配分して流出させることができ、汚水浄化槽における複数系統の散気装置における空気供給管の分岐箇所に設けると、その配分操作も手軽で、簡便、且つ、確実に行なうことができる。
【0032】
また、請求項2の発明のように、分配座盤におけるスペーサ−座盤の孔形態を、三ヶ月状乃至楔状の孔形態とすることにより、希望する流量特性に、簡単に行なうことができ、頗る実用的でもある。
【図面の簡単な説明】
【図1】本発明の空気量の分配調整弁の実施の形態を示す図であって、(a)は平面図、(b)は正面図、(c)は側面図である。
【図2】同 分配調整弁の縦断面図である。
【図3】同 分配調整弁のバルブケーシングCを示す斜視図である。
【図4】同 バルブケーシングCに嵌挿する分配座盤Dの1組を示す斜視図と、当該分配座盤Dの外周部の断面を示す図である。
【図5】同 分配調整弁の回転バルブVを示す図であって、(a)は上面からの斜視図、(b)は上下反転させた回転バルブVの底面を示す斜視図である。
【図6】同 蓋体と操作レバーと袋ナットを示す斜視図である。
【図7】同 バルブケーシングCを示す図であって、(a)は平面図、(b)は縦断正面図、(c)は底面図である。
【図8】同 分配調整弁を、汚水浄化槽の二次処理槽に配管した2系統の散気装置の分岐部に接続した使用状態の一例を示す斜視図である。
【図9】同 操作レバーの指針が、図1(a)に示す流出量の数値「50」%を指すときを、当該操作レバーの角度を「零度」とし、操作レバーを15度刻みで半時計方向へ順次回転した場合に、扇形バルブによって上部側パッキン座盤における流出口の開口度が狭められる状況を示す図であって、(a)は回転角度が零度の場合、(b)は15度、(c)は30度、(d)は45度、(e)は60度、(f)は75度、(g)は82度、(h)は90度の各場合を示している。
【図10】同 スペーサ−座盤の流出口を、三ヶ月状乃至楔状の孔形態とした場合を示す図であって、(a)はその斜視図、(b)は平面図、(c)は縦断正面図である。
【図11】同 スペーサ−座盤の流出口を扇形状の孔形態とした場合と、三ヶ月状の孔形態とした場合における流量特性を比較したグラフである。
【符号の説明】
C バルブケーシング
T 管継ぎ手
M 分割桝
H 弁室
D 分割座盤
V 回転バルブ
A、B 散気装置
1 流入管
2、3 流出管
4 隔壁
5、30 中心軸
6 流入室
7、8 流出室
9 空間室
10 上縁座部
11、19、40 係合溝
12 スペーサ−座盤
13、14 パッキン座盤
15、21 流入口
16、17、21、22
流出口
18 係合口
20、27 係合凹部
24 蓋部
25 係合突起
26、28 係合突条
29 バルブロッド
31 上蓋
32 間隔保持片
33 扇形バルブ
34 円環枠
35 連通口
36 空間室
37 蓋体
38 嵌合孔
39 Oリング
41 操作レバー
42 矩形孔
43 角軸
44 指針
45 袋ナット
46 目盛り
47 翼板
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a distribution regulating valve for the amount of air used mainly for distributing and flowing out air supplied from a blower pump.
[0002]
[Prior art]
Conventionally, in a sewage septic tank, aerobic treatment is performed by receiving a supply of air from a blower pump installed outside the tank and aeration from a diffuser immersed in a secondary treatment tank for sewage treatment, or a secondary Air is supplied to an air lift device that pumps up treated water and primary treated water.
In that case, the amount of air is adjusted by opening and closing a two-way cock, a ball valve, an angle valve or the like provided in the middle of the piping.
[0003]
[Problems to be solved by the invention]
Therefore, it is necessary to interpose the regulating valve in the middle of the piping that requires flow rate adjustment, and as a result, a piping system is configured by incorporating a large number of regulating valves. For example, in the case where two systems of air diffusers A and B are provided in the secondary treatment tank of the sewage purification tank, conventionally, an adjustment valve is interposed for each air diffuser. As a result, the amount of air from the blower pump is individually adjusted, which is inefficient.
Accordingly, an object of the present invention is to provide an air amount distribution adjustment valve which is attached to a branch portion of an air supply pipe of the above-described air diffuser and which allows an inflow air amount to be distributed and discharged.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the air quantity distribution regulating valve of the present invention employs the following means. That is, it is an air amount distribution adjustment valve provided at a branching portion from a blower pump to a two-line air diffuser provided in a sewage treatment tank, and has an inflow pipe 1 protruding forward and an outflow branched to the left and right sides. A divided hook M divided into a fan shape by a T-shaped pipe joint T composed of the pipes 2 and 3 and a partition wall 4 partitioned obliquely in a cross shape in plan view at the junction of the pipe joint T; A valve casing is formed by a cylindrical valve chamber H projecting to the upper side of the valve, and is distributed inside the valve chamber H, and is provided with an inlet and an outlet that are vertically communicated with the divided rod M In order to adjust the opening degree of the seat and the outlet of the distribution seat, the rotary valve V having a fan-shaped valve 33 formed on the bottom surface, the rotary valve V and the distribution seat are pressed against each other, and the valve chamber H is A lid 37 fitted for sealing, and a rotary valve V protruding on the lid 37 An operation lever 41 provided in the valve rod 29, is characterized in that it consists of.
[0005]
Further, in claim 2, the distribution seat is composed of the spacer seat 12 and the packing seats 13 and 14 attached to the upper and lower surfaces thereof, and the outer peripheral portion is formed in an annular shape in plan view. The inside is divided into a cross shape, the one section is used as an inlet, the other two sections are formed as outlets, and the outlet of the spacer-seat 12 has a three-month or wedge-shaped hole shape. It is characterized by that.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to each of the distribution regulating valves shown in FIGS. 1 (a) to 1 (c), a longitudinal front view of the distribution regulating valve shown in FIG. 2, and the distribution shown in FIGS. A description will be given based on an exploded perspective view of components of the regulating valve and each view of the valve casing shown in FIGS.
[0008]
First, as shown in FIGS. 1A to 1C, a perspective view shown in FIG. 3 and FIGS. 7A to 7C, the valve casing C is arranged in front of the main body. A flat T-shaped pipe joint T in which the outflow pipes 2 and 3 project from the left and right side positions of the main body to the side with respect to the inflow pipe 1 projecting forward from the position of the main body, and the inside of the pipe joint T A portion of the vicinity of the part is formed in a substantially bottomed cylindrical shape, and the inside of the cylinder is partitioned and formed in an oblique cross shape in plan view by the partition wall 4, and is formed so as to protrude from the upper side of the divided portion M. It consists of a cylindrical valve chamber H whose inner diameter is slightly larger than the inner diameter of M.
[0009]
Reference numeral 5 denotes a central axis having a stepped shape at a substantially middle position between the upper and lower sides, from the central position of the dividing rod M formed at the junction of the inflow pipe 1 and the outflow pipes 2 and 3 to the center of the valve chamber H. It protrudes vertically.
[0010]
Accordingly, the dividing rod M is partitioned and formed by the partition wall 4 between the lower half portion of the central shaft 5 and the inner wall surface of the dividing rod M, and the fan-shaped inflow chamber 6 communicating with the inflow pipe 1; It consists of fan-shaped outflow chambers 7 and 8 communicating with the outflow pipes 2 and 3 and a fan-shaped space chamber 9 which is partitioned on the back side and does not communicate with air. The upper part of each of these chambers 6 to 9 is a valve chamber. Open toward H.
[0011]
Further, at the upper edge of the dividing rod M, the bottom position of the valve chamber H is formed in a circular cross shape consisting of an annular seat having an annular inner and outer periphery and a radial seat on the upper edge of the partition wall 4. An upper edge seat portion 10 is formed, and a concave engaging groove 11 having a shallow bottom is formed on the upper edge seat portion 10.
[0012]
Next, in FIGS. 2 and 4, D is a flow distribution seat that is dropped into the valve chamber H and the center of which is fitted and supported on the central shaft 5, and is a spacer seat made of synthetic resin. It consists of a board 12 and rubber packing seats 13 and 14 which are superposed on and attached to the upper and lower surfaces.
As shown in FIG. 4, the packing seats 13 and 14 and the spacer seat 12 are formed in an annular shape in the inner and outer peripheral portions in plan view, and are formed in a cross shape in the shape of an oblique cross. Molded into a flat form.
[0013]
Among them, the spacer-seat 12 is sandwiched and supported between the packing seats 13 and 14, and has a fan shape that allows the inlet chamber 6 and the outlets 7 and 8 of the split rod M to communicate with each other vertically. The inlet 15 and the outlets 16 and 17 are formed in three directions, and a fan-shaped engagement port 18 that engages with the packing seat 13 on the upper side is formed on the back side thereof, and the upper and lower surfaces thereof are formed. A concave engaging groove 19 having a shallow bottom is provided in the center position of the joining surface in a state of being edged.
[0014]
Reference numeral 20 denotes an engaging recess formed by cutting off the front edge of the spacer-seat 12 in an arc shape, and its left and right positions are vertically provided on the inner wall surface on the front side of the valve chamber H shown in FIG. The position is fixed by being fitted into the engaging protrusion 28.
[0015]
In addition, the upper and lower packing seats 13 and 14 have the same structure, and, as in the case of the spacer-seat 12, the inlet chamber 6 and the outlets 7 and 8 of the split rod M, and the spacer -The inflow port 15 and the outflow ports 16 and 17 of the seat 12 and the fan-shaped inflow port 21 and the outflow ports 22 and 23 that can communicate with each other vertically are formed in three directions, and the back side is closed in a fan shape. The fan-shaped engagement protrusion 25 is formed on the lower surface of the fan-shaped lid portion 24, and the inner and outer sides are circular at the center position of the joining surface of the upper surface and the lower surface. An engaging protrusion 26 is formed.
[0016]
Reference numeral 27 denotes an engaging concave portion for positioning provided at three positions on the front edge portions of the packing seats 13 and 14, which are engaged and guided by the engaging protrusions 28 of the valve chamber H. The position is fixed.
[0017]
Therefore, the intermediate spacer spacer 12 and the packing seats 13 and 14 attached to the upper and lower surfaces of the spacer spacer 13 are overlapped and inserted into the central shaft 5 and fitted into the valve chamber H, or The lower packing seat 14 is placed on the upper edge seat 10 of the split rod M, the spacer seat 12 is placed thereon, and finally the upper packing seat 13 is fitted. Thus, the three distribution seats D are sequentially fixed and fitted into the valve chamber H.
[0018]
At that time, the engagement groove 11 of the upper edge seat portion 10 of the split rod M, the engagement protrusions 26 of the upper and lower joining surfaces of the packing seats 13 and 14 described above, and the engagement of the upper and lower joining surfaces of the spacer-seat 12 The groove 19 is fitted into each other, and the packing seats 13 and 14 and the spacer-seat 12 are fixedly fitted to the engagement protrusions 28 of the valve chamber H to be fitted into the valve chamber. The distribution seat D is assembled at the bottom position of H so as not to be displaced.
[0019]
Next, in FIGS. 2 and 5A and 5B, reference numeral 29 denotes a valve rod of the rotary valve V. A disc-shaped sealing upper lid 31 is provided at the upper position of the central shaft 30 in the lower half portion thereof. A rotary valve V is formed at the bottom of the central shaft 30 at a lower position via a gap holding piece 32 with the upper lid 31.
The rotary valve V includes a fan-shaped disk-shaped valve 33 (hereinafter referred to as a fan-shaped valve) formed at the rear side position thereof, and a circular arc formed on the outer peripheral portion from both side positions to the front side of the fan-shaped valve 33. And an annular frame 34.
Accordingly, an arc-shaped communication port 35 is formed between the annular frame 34 and the central shaft 30, and between the upper lid 31 and the rotary valve V, as shown in FIG. A communicating space 36 is formed.
[0020]
Further, in each figure of FIG. 1, FIG. 2 and FIG. 6, reference numeral 37 denotes a cylindrical lid that fits into the valve chamber H of the valve casing C, and a fitting port 38 is formed at the center of the upper surface thereof. An O-ring 39 is fitted to the outer peripheral position of the back surface of the fitting port 38, and positioning protrusions (not shown) for positioning are provided vertically at two locations on the inner wall surface of the lid 37. .
[0021]
Therefore, a valve rod 29 having a rotary valve V formed at the lower end thereof is inserted into the fitting port 38 of the lid 37 by pushing up from the lower portion of the lid 37, and the upper lid 31 formed on the valve rod 29 is inserted into the 0 Fit into the ring 39 in a crimped state.
In addition, by engaging the engagement protrusions of the inner wall surface of the lid 37 to which the valve rod 29 is assembled with the engagement grooves 40 formed in the two recesses on the outer wall surface of the valve chamber H, the engagement protrusions are fitted in FIG. As shown in FIG. 3, a lid 37 is attached to the valve chamber H of the valve casing C.
At that time, the rotary valve V at the lower end portion of the valve rod 29 is pressed against the upper surface of the upper packing seat 13 and is pressure-bonded so as to be freely rotatable.
[0022]
Reference numeral 41 denotes an operation member of the rotary valve V, specifically, an operation lever. A rectangular hole 42 is formed at the center of rotation of the rotary valve V, and is fitted to the angular shaft 43 of the valve rod 29 protruding to the top of the lid body 37. Fix it together. 44 is a pointer for the operation lever 41, 45 is a cap nut, and is screwed to the tip shaft of the valve rod 29, thereby supporting the lid 37 including the operation lever 41 from coming off. Reference numeral 46 denotes a scale formed on the upper surface of the rear portion of the lid body 37, and displays a numerical standard indicating the ratio of the flow rate from the outflow pipes 2, 3 by the forward / reverse rotation of the operation lever 41.
[0023]
Next, as shown in FIG. 8, the above air quantity distribution adjustment valve is connected to the branch part of the piping system of the two systems of the air diffusers A and B piped to the secondary treatment tank of the sewage purification tank, About the operation in the case where an air supply pipe from a blower pump (not shown) is connected to the inflow pipe 1 and the air supply pipes to the air diffusers A and B are connected to the branched outflow pipes 2 and 3, respectively. explain.
[0024]
First, as shown in FIG. 1A, when the pointer 44 of the operation lever 41 indicates a numerical value “50” at the center of the scale 46, the fan-shaped valve 33 of the rotary valve V at the lower end of the valve rod 29; The fan-shaped lid portion 24 of the upper side packing seat 13 is joined up and down. If the state at this time is expressed in a plane, an overlapping state as shown in FIG.
[0025]
Then, the inflow air from the inflow pipe 1 flows into the inflow chamber 6 of the split rod M, the inlet 21 of the lower packing seat 14 in the distribution seat D, the inlet 15 of the spacer seat 12, and the upper packing seat 13. , And then blows up from the communication port 35 of the rotary valve V to the space chamber 36, and then branches to the left and right outlets 22, 23 of the upper packing seat 13 and flows into the spacer seat. Downflow from the outlets 16 and 17 of the panel 12 and the outlets 22 and 23 of the lower packing seat 14 toward the left and right outlet chambers 7 and 8 of the split rod M, and the diffuser A from the outlet pipes 2 and 3 , B is supplied with air. Accordingly, when the operating lever 41 has a left / right rotation angle of “zero” as shown in FIG. 9A, the air amount from the inflow pipe 1 is scattered by 50% from the left and right outflow pipes 2, 3. Sent to the air devices A and B.
[0026]
Similarly, as shown in FIGS. 9B to 9F, if the operation lever 41 is rotated counterclockwise by 15 degrees, the upper side of the rotary valve V is rotated by the fan-shaped valve 33 that rotates accordingly. While the opening degree of the left outlet 23 of the packing seat 13 is gradually narrowed, the opening degree of the right outlet 23 is not changed, and the rear position of the packing seat 13 is closed by the lid 24. Thus, the remaining opening area of the narrowed outlet 22 and the amount of air proportional to the opening area of the outlet 23 are sent out from the respective outlet pipes 2 and 3.
[0027]
In addition, when the operation lever 41 is rotated 90 degrees as shown in FIGS. 9G and 9H, particularly as shown in FIG. 9H, the left outlet 22 is completely closed. For this reason, the entire amount of air blown from the inlet pipe 1 to the inlet 21 flows out from the right outlet 23.
Therefore, in this case, the supply of air to the diffuser A connected to the outflow pipe 2 is stopped, while the total amount of air flowing in from the inflow pipe 1 is diffused to the outflow pipe 3. It is sent to.
[0028]
As described above, the flow rate characteristics when the outlets 16 and 17 of the spacer-seat 12 are fan-shaped holes are shown in FIG. 11 on the basis of the vertical and horizontal axes of the flow rate “50%”. A line as shown in the case where the drawn graphic is “fan-shaped hole” is drawn.
Therefore, in the case of the “fan-shaped hole”, the fluctuation of the outflow amount due to the forward / reverse rotation of the operation lever 41 is considerably large.
[0029]
Therefore, from the viewpoint of suppressing the rate of flow rate fluctuation, and as a modified example that exhibits flow rate characteristics different from the above, the spacer-seat 12 is changed as shown in FIGS. 10 (a) to 10 (c). .
Specifically, an expanded arc-shaped blade 47 that closes a part of the inside of the outlets 16 and 17 in the spacer-seat 12 is added, so that the outlets 16 and 17 have a three-month shape or a wedge shape. It is open in the form of a hole.
The flow rate characteristic in the case of this hole shape draws a line as shown in FIG. 11 when the drawing pattern is “three-month hole”, as compared to the fan-shaped hole shape described above. In addition, it exhibits a flow rate characteristic close to a virtual line of 45 degrees to the right.
Thus, in order to exhibit the flow characteristic different from the above case by the distribution regulating valve of the present invention, the hole form of the outlets 16 and 17 of the spacer-seat 12 in the distribution seat D is changed at any time. If that is the case, it can easily respond to the wishes of users in the industry.
[0030]
【The invention's effect】
Since the air amount distribution regulating valve of the present invention is configured as described above, the entire amount of inflow can be efficiently distributed in proportion to flow out, and the air supply pipes in the plurality of air diffusers in the sewage septic tank can be discharged. If it is provided at the branch point, the distribution operation is also easy, simple and reliable.
[0032]
Further, as in the invention of claim 2, by making the hole form of the spacer-seat in the distribution seat as a three-month or wedge-like hole form, it is possible to easily achieve desired flow characteristics, It is also practical.
[Brief description of the drawings]
FIG. 1 is a view showing an embodiment of an air amount distribution regulating valve according to the present invention, in which (a) is a plan view, (b) is a front view, and (c) is a side view.
FIG. 2 is a longitudinal sectional view of the distribution regulating valve.
FIG. 3 is a perspective view showing a valve casing C of the distribution regulating valve.
FIG. 4 is a perspective view showing one set of distribution seats D fitted into the valve casing C, and a view showing a cross section of the outer periphery of the distribution seats D.
5A and 5B are views showing a rotary valve V of the distribution regulating valve, in which FIG. 5A is a perspective view from above, and FIG. 5B is a perspective view showing a bottom surface of the rotary valve V turned upside down.
FIG. 6 is a perspective view showing the lid body, an operation lever, and a cap nut.
7A and 7B are views showing the valve casing C, where FIG. 7A is a plan view, FIG. 7B is a longitudinal front view, and FIG. 7C is a bottom view.
FIG. 8 is a perspective view showing an example of a usage state in which the distribution regulating valve is connected to a branch portion of two systems of air diffusers piped to a secondary treatment tank of a sewage purification tank.
FIG. 9 shows that when the pointer of the operating lever indicates the value “50”% of the outflow amount shown in FIG. 1 (a), the angle of the operating lever is set to “zero degree” and the operating lever is cut in half by 15 degrees. It is a figure which shows the condition where the opening degree of the outflow port in an upper side packing seat is narrowed by a fan-shaped valve when it rotates sequentially in the clockwise direction, Comprising: (a) is a rotation angle is zero degree, (b) is 15 Degree, (c) is 30 degrees, (d) is 45 degrees, (e) is 60 degrees, (f) is 75 degrees, (g) is 82 degrees, and (h) is 90 degrees. .
FIGS. 10A and 10B are views showing a case where the outlet of the spacer-stool is formed in a three-month or wedge-shaped hole shape, where FIG. 10A is a perspective view, FIG. 10B is a plan view, and FIG. Is a longitudinal front view.
FIG. 11 is a graph comparing the flow rate characteristics when the outlet of the spacer-stool has a fan-shaped hole shape and a three-month hole shape.
[Explanation of symbols]
C Valve casing T Pipe joint M Divided rod H Valve chamber D Divided seat V Rotary valve A, B Air diffuser 1 Inflow pipe 2, 3 Outflow pipe 4 Bulkhead 5, 30 Center shaft 6 Inflow chamber 7, 8 Outflow chamber 9 Space Chamber 10 Upper edge seat 11, 19, 40 Engagement groove 12 Spacer-seat 13, 13, Packing seat 15, 21, Inlet 16, 17, 21, 22
Outlet 18 Engagement port 20, 27 Engagement recess 24 Lid 25 Engagement protrusion 26, 28 Engagement ridge 29 Valve rod 31 Upper lid 32 Spacing piece 33 Fan-shaped valve 34 Ring frame 35 Communication port 36 Space chamber 37 Lid 38 Fitting hole 39 O-ring 41 Operation lever 42 Rectangular hole 43 Square shaft 44 Pointer 45 Cap nut 46 Scale 47 Blade

Claims (2)

ブロアポンプから汚水処理槽内に設けられた2系統の散気装置への分岐部に設けられる空気量の分配調整弁であって、前方へ突出した流入管1と左右側方へ分岐した流出管2,3からなるT字型の管継ぎ手Tと、該管継ぎ手Tの合流部を平面視して斜め十文字状に区画した隔壁4により扇形状に区画した分割桝Mと、該分割桝Mの上部側に突出した筒状の弁室Hとによりバルブケーシングを形成し、該弁室Hの内部に嵌め込まれ、該分割桝Mと上下に連通自在とする流入口と流出口を備えた分配座盤と、該分配座盤の流出口の開口度を調節するため、底面に扇形バルブ33を形成した回転バルブVと、該回転バルブVと該分配座盤を圧接し、かつ弁室Hを密閉するために嵌合した蓋体37と、該蓋体37上に突出した回転バルブVのバルブロッド29に設けた操作レバー41と、からなることを特徴とする空気量の分配調整弁。An air amount distribution adjusting valve provided at a branching portion from a blower pump to a two-line air diffuser provided in a sewage treatment tank, which has an inflow pipe 1 protruding forward and an outflow pipe 2 branching left and right. , 3 T-shaped pipe joint T, a dividing rod M partitioned into a fan shape by a partition wall 4 partitioned in an oblique cross shape in plan view at a junction of the pipe joint T, and an upper portion of the divided flange M A valve seat is formed by a cylindrical valve chamber H projecting to the side, and is fitted into the valve chamber H, and is provided with an inlet and an outlet that can communicate with the divided rod M vertically. In order to adjust the opening degree of the outlet of the distribution seat, the rotary valve V having a fan-shaped valve 33 formed on the bottom surface, the rotary valve V and the distribution seat are pressed against each other, and the valve chamber H is sealed. A lid 37 fitted for the purpose, and a valve rod of the rotary valve V protruding on the lid 37 The amount of air distribution control valve to be operated lever 41 provided to de 29, characterized in that it consists of. 前記分配座盤を、スペーサー座盤12とその上下面に合着したパッキン座盤13,14とで構成し、それぞれ平面視して外周部を環状に形成して、その内側を十文字状に区画して、その1区画を流入口とし、他の2区画を流出口に形成し、かつ、該スペーサ−座盤12の流出口を三ヶ月状乃至楔状の孔形態としたことを特徴とする請求項1記載の空気量の分配調整弁。The distribution seat is composed of a spacer seat 12 and packing seats 13 and 14 attached to the upper and lower surfaces thereof, each of which is formed in an annular shape in a plan view, and its inside is defined in a cross shape. The one section is used as an inlet, the other two sections are formed as outlets, and the outlet of the spacer-seat 12 is formed in a three-month or wedge-shaped hole shape. Item 2. An air amount distribution regulating valve according to Item 1.
JP30992799A 1999-10-29 1999-10-29 Air quantity distribution adjustment valve Expired - Fee Related JP3853548B2 (en)

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JP5644040B2 (en) * 2008-09-30 2014-12-24 Toto株式会社 Hot water mixing cartridge
CN111233257B (en) * 2020-01-16 2022-02-01 深圳市蓝清环境科技工程有限公司 PCB waste liquid treatment system
CN113669827B (en) * 2021-08-17 2022-10-04 浙江浙柯风机有限公司 Fan installation mechanism in air duct

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