JPS58193989A - Apparatus for automatically controlling opening of butterfly valve - Google Patents
Apparatus for automatically controlling opening of butterfly valveInfo
- Publication number
- JPS58193989A JPS58193989A JP7736882A JP7736882A JPS58193989A JP S58193989 A JPS58193989 A JP S58193989A JP 7736882 A JP7736882 A JP 7736882A JP 7736882 A JP7736882 A JP 7736882A JP S58193989 A JPS58193989 A JP S58193989A
- Authority
- JP
- Japan
- Prior art keywords
- butterfly valve
- pressure
- opening
- duct
- movable member
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
Abstract
Description
【発明の詳細な説明】
本発明は、焼成炉、焼却炉等における炉内圧力調節用の
空気の吸引及び圧送用の配管のように、気体流通管中に
蝶弁を装置し、その開度調節によって吸引側若しくは圧
送側の圧力を一定に保持するようにした自動調圧装置に
使用される蝶弁の開度自動調節装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a butterfly valve in a gas flow pipe, such as a pipe for sucking and pumping air for adjusting the pressure inside a kiln, incinerator, etc. The present invention relates to an automatic adjustment device for the opening of a butterfly valve used in an automatic pressure adjustment device that maintains the pressure on the suction side or the pressure side constant through adjustment.
トンネル炉のように炉内圧力を厳しく管理する必要があ
る場合の炉内圧力の自動調節は、炉内圧力を検知する圧
力計の計測値を電気信号に変換して制御装置に入力し、
その制御装置の出力信月によりサーボモータを駆動して
空気吸引管若しくは圧送管中に装置された蝶弁の開度を
調節するようになっているが、例えば、古タイヤの焼却
炉のように炉内圧力の許容範囲が比較的大きい場合には
、上記のような高価な制御装置を使用する必要はなく、
簡単な構造の自動調節装置が望まれていた。Automatic adjustment of the furnace pressure in cases where the furnace pressure must be strictly controlled, such as in a tunnel furnace, is achieved by converting the measured value of a pressure gauge that detects the furnace pressure into an electrical signal and inputting it to the control device.
The output signal of the control device drives a servo motor to adjust the opening degree of a butterfly valve installed in the air suction pipe or pressure feed pipe. If the permissible range of furnace pressure is relatively large, there is no need to use an expensive control device such as the one described above.
An automatic adjustment device with a simple structure was desired.
本発明はこのような要求に応じて完成されたものであっ
て、気体流通管内の圧力変動によって作動するピストン
、ダイヤフラム等の可動体を用いて蝶弁の開度を自動的
に調節するようにした装置を提供することを目的とする
ものである。The present invention was completed in response to these demands, and is designed to automatically adjust the opening degree of a butterfly valve using movable bodies such as pistons and diaphragms that are actuated by pressure fluctuations within the gas flow pipe. The purpose of this invention is to provide a device that can achieve the desired results.
以下、本発明の一実施例を添付図面に基づいて説明する
。Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.
本実施例は、古タイヤ焼却炉の燃焼ガスをブロアで吸引
し、焼却炉内に循環させて再燃焼することにより燃焼ガ
ス中の煤を除去するようにした燃焼ガス循環管路に本発
明を適用したものであって、タクトｌの上端は図示しな
い古タイヤ焼却炉の燃焼室に接続され、下端は図示しな
いブロアの吸入［１に接続されている。このダクト１の
側方には一面を開放した円筒形の容器４０が設けられて
いて、タクトｌの側面に突設した支管３と容器４０の端
面に突設した中心管４とが、夫々のフランジ５．６をボ
ルト７．７で締結することによって接続されて、ダクト
１と容器４０とを連通する通気路８が形成されている。In this embodiment, the present invention is applied to a combustion gas circulation pipe that removes soot from the combustion gas by sucking combustion gas from an old tire incinerator with a blower, circulating it in the incinerator, and re-burning it. The upper end of the tact l is connected to the combustion chamber of an old tire incinerator (not shown), and the lower end is connected to the suction [1] of a blower (not shown). A cylindrical container 40 with one side open is provided on the side of the duct 1, and a branch pipe 3 protruding from the side surface of the duct 1 and a central pipe 4 protruding from the end surface of the container 40 are connected to each other. The flanges 5.6 are connected by fastening with bolts 7.7 to form a ventilation passage 8 that communicates the duct 1 and the container 40.
容器４０内にはその軸方向に摺動自由なピストン９が嵌
入されており、このピストン９の外周面と容器４０の内
周面の間に１よその間を密閉するための弾力性を有する
ゴム膜ＩＯが装着されていて、第１図において、ピスト
ン９の左側にダクトｌ内と連通ずる圧力室２が構成され
ている。このゴム膜１０は、薄い筒状のものを軸方向に
折り曲げて断面ヘアピン形の二重筒状としたものであっ
て、その一端１０ａはピストン９の外周面に、他端１０
ｂは容器４０の内周面（こ夫々貼着されている。従って
、ピストン９が実線位置から鎖線位置に移動するときに
は、内側のコ゛ム膜ｌＯが容器４０の外周面に沿うよう
１こして外側に移行し、逆にピストン９が鎖線位置から
実線位置に移動するときには、外側のゴム膜が内側に移
行して、圧力室２の密閉性を保ったままで、ピストン９
を円滑に移動し得るようになっている。容器４０の開放
端は蓋板１１によって閉塞され、その蓋板１１の中央に
は中心孔１２が形成されているとともに、この中心孔１
２に連通して円筒形の支持部材１３がボルト１４．１４
によって取付けられている。これらの支持部材１３及び
中心孔１２には移動杆１５が摺動自由に挿通されており
、その一端１５ａは、ピストン９の端面の内側に突設さ
れたボス１６に嵌入されてボルト１７で固着されている
。又蓋板１１の支持部材１３の下方には取付板１８が固
定されていて、この取付板１８上には一対の支持板１９
．１９が間隔をおいて固定されており、その先端に差し
渡した軸２０には１／バー２１が回動自由に支持されて
いる。レバー２１の一端には長孔２１ｂを備えたクレビ
ス２１ａが形成されており、この、長孔２１ｂには前記
移動杆１５の他端１５ｂに設けたピン２２が嵌合してい
る。一方レバー２１の他端には、第２図に示すように、
ダクトｌの側方へ突出した連結板２３が固定され、その
突出端に下向きの腕杆２４が固定されている。また、取
付板１８の側方には、駒形に屈曲したブラケット２５が
取り付けられており、その先端には螺杵２６が螺着され
てロックナツト２７で固定されている。この螺杵２６の
先端の掛止孔２６ａと前記腕杆２４の側面に突設しｔコ
ピン２４ｂには引張コイルばね２８の両端が掛止されて
おり、その弾縮力によりレバー２１を第１図の時計方向
に回動付勢するようになっている。A piston 9 that can freely slide in the axial direction is fitted into the container 40, and elastic rubber is used to seal the space between the outer peripheral surface of the piston 9 and the inner peripheral surface of the container 40. A membrane IO is installed and, in FIG. 1, a pressure chamber 2 is formed on the left side of the piston 9, which communicates with the interior of the duct 1. This rubber membrane 10 is formed by bending a thin cylindrical member in the axial direction to form a double cylindrical shape with a hairpin cross section.
b is attached to the inner circumferential surface of the container 40. Therefore, when the piston 9 moves from the solid line position to the chain line position, the inner comb film lO is moved along the outer circumferential surface of the container 40, and , and conversely, when the piston 9 moves from the chain line position to the solid line position, the outer rubber film moves inward, and the piston 9 moves while maintaining the airtightness of the pressure chamber 2.
It is designed so that it can be moved smoothly. The open end of the container 40 is closed by a lid plate 11, and a center hole 12 is formed in the center of the lid plate 11.
2, the cylindrical support member 13 is connected to the bolt 14.14.
installed by. A movable rod 15 is slidably inserted into these support members 13 and the center hole 12, and one end 15a of the movable rod 15 is fitted into a boss 16 protruding inside the end surface of the piston 9 and fixed with a bolt 17. has been done. A mounting plate 18 is fixed below the support member 13 of the cover plate 11, and a pair of support plates 19 are mounted on the mounting plate 18.
．． 19 are fixed at intervals, and a 1/bar 21 is rotatably supported on a shaft 20 extending over the tip thereof. A clevis 21a having an elongated hole 21b is formed at one end of the lever 21, and a pin 22 provided at the other end 15b of the movable rod 15 is fitted into the elongated hole 21b. On the other hand, at the other end of the lever 21, as shown in FIG.
A connecting plate 23 protruding to the side of the duct l is fixed, and a downward arm rod 24 is fixed to the protruding end of the connecting plate 23. Further, a bracket 25 bent into a piece shape is attached to the side of the mounting plate 18, and a screw punch 26 is screwed onto the tip of the bracket 25 and fixed with a lock nut 27. Both ends of a tension coil spring 28 are hooked to a hooking hole 26a at the tip of the screw punch 26 and a T copin 24b provided protruding from the side surface of the arm rod 24, and the elastic force of the tension coil spring 28 causes the lever 21 to be moved to the first position. It is designed to rotate clockwise in the figure.
この螺杵２６はロックナツト２７を緩めて回動し、軸方
向に移動させることによって、ばね２８の弾縮力を適宜
調整し得るようになっている。又、容器４０の蓋板１１
には、前記中心孔１２の下方において通気孔２９が形成
されていて、容器４ｏのピストン９％と蓋板１１の間の
空間が大気に連通している。又、前記タクト１内の下方
には蝶弁３０が装置されており、この蝶弁３ｏは、ダク
トｌの径方向に挿通されて、ダクト１の外周面上に設け
た軸受３１，８１で回動自由に支持した軸８２と、この
軸３２に一体に固定されて、ダクトｌの内径にほぼ等し
い直径を有する円形の弁体３３とによって構成されてい
る。この軸８２の一側の軸受８１から突出した端部には
アーム３４が固設されていて、アーム８４の先端は、ダ
クト１の一側にほぼ水平に設置された連結杆３５の一端
のクレビス８５＆にビン８６によって連結されている。The screw punch 26 is rotated by loosening a lock nut 27 and moved in the axial direction, so that the elastic force of the spring 28 can be adjusted as appropriate. Moreover, the lid plate 11 of the container 40
A ventilation hole 29 is formed below the center hole 12, and the space between the piston 9% of the container 4o and the lid plate 11 communicates with the atmosphere. Further, a butterfly valve 30 is installed in the lower part of the tact 1, and this butterfly valve 3o is inserted in the radial direction of the duct 1 and rotated by bearings 31 and 81 provided on the outer peripheral surface of the duct 1. It is composed of a freely movable shaft 82 and a circular valve body 33 that is integrally fixed to the shaft 32 and has a diameter approximately equal to the inner diameter of the duct l. An arm 34 is fixed to the end protruding from the bearing 81 on one side of the shaft 82, and the tip of the arm 84 connects to the clevis of one end of the connecting rod 35 installed almost horizontally on one side of the duct 1. 85& by a bin 86.
連結杆８５の他端８５ｂには４個の孔３７が形成されて
おり、この孔８７の任意の１個を挾むようにして前記腕
杆２４の下端のクレビス２４ａを嵌め、ピン８８を挿通
することによって、連結杆３５と腕杆２４とが連結され
ており、腕杆２４のクレビス２４ａと連結する４個の孔
３７を適宜選択することによって、弁体３３の初期設定
開度を変更し得るようになっている。Four holes 37 are formed in the other end 85b of the connecting rod 85, and the clevis 24a at the lower end of the arm rod 24 is inserted into any one of the holes 87, and the pin 88 is inserted therethrough. The connecting rod 35 and the arm rod 24 are connected, and the initial setting opening degree of the valve body 33 can be changed by appropriately selecting four holes 37 that connect with the clevis 24a of the arm rod 24. It has become.
次に本実施例の作動について説明する。第１図において
、図示しないブロアによる燃焼ガスの吸入が行なわれて
、ダクト１の上端に接続した燃焼室から、下端に接続し
たブロアに向けて燃焼ガスが流れている際に、ダクトｌ
内の圧力が低下すると、通気路８によってダクト１内と
連通している圧力室２内の圧力が低下するために、ピス
トン９が図示実線位置から鎖線位置に移動する。これに
伴なって移動杆１５が第１図の左方へ移動し、更にレバ
ー２１がコイルばね２８の付勢力に抗して同図の反時計
方向に回動し、圧力室２内の圧力とコイルばね２８の弾
縮力がバランスした位置で停止する。これによって連結
杆３５が同図の右方向に移動する。この連結杆３５の移
動によって、アーム３４が同図の時計方向に回動するた
めに、軸３２を介して弁体３３が同方向に一体的に回動
して鎖線位置に傾動し、ダク）１内の流通面積が弁体３
３によって狭められ、ブロアに吸入される風量が少なく
なってダクト１内の圧力が上昇する。Next, the operation of this embodiment will be explained. In FIG. 1, when combustion gas is sucked by a blower (not shown) and the combustion gas is flowing from the combustion chamber connected to the upper end of the duct 1 to the blower connected to the lower end, the duct l
When the internal pressure decreases, the pressure within the pressure chamber 2 communicating with the inside of the duct 1 through the air passage 8 decreases, so that the piston 9 moves from the solid line position shown in the figure to the chain line position. Along with this, the moving rod 15 moves to the left in FIG. It stops at a position where the elastic force of the coil spring 28 and the elastic force of the coil spring 28 are balanced. This causes the connecting rod 35 to move to the right in the figure. Due to this movement of the connecting rod 35, the arm 34 rotates clockwise in the figure, so the valve body 33 integrally rotates in the same direction via the shaft 32 and tilts to the chain line position. The flow area in 1 is valve body 3
3, the amount of air sucked into the blower decreases, and the pressure inside the duct 1 increases.
逆に、ダクトｌ内の圧力が必要以上に上昇すると、ピス
トン９が第１図の右方に移動して、コイルばね２８の弾
縮力とバランスした位置で停止し、これに伴って移動＄
−１−１５，レバー２１、連結杆３５及びアーム８４が
前述したとは逆向きに作動し、弁体８８が開弁方向に回
動してブロアに吸入される風量が増大し、ダクト１内の
圧力が低下する。Conversely, when the pressure inside the duct 1 increases more than necessary, the piston 9 moves to the right in FIG.
-1-15, the lever 21, the connecting rod 35, and the arm 84 operate in the opposite direction to that described above, and the valve element 88 rotates in the valve opening direction, increasing the amount of air sucked into the blower and increasing the amount of air inside the duct 1. pressure decreases.
即ち、ダクト１内の圧力が低下若しくは上昇するたびに
蝶弁８０が閉弁若しくは開弁方向に作動し、これによっ
てブロアに吸入される風量が減少若しくは増加されてダ
ク）１内の圧力が常に一定の圧力に維持される。That is, each time the pressure inside the duct 1 decreases or increases, the butterfly valve 80 operates in the closing or opening direction, thereby reducing or increasing the amount of air sucked into the blower, so that the pressure inside the duct 1 is constantly maintained. Maintained at constant pressure.
尚、本実施例においては、圧力室２内を移動する可動体
をピストン９としたが、これに代えてりイアフラムを用
いても同様の作用効果を得ることができるとともに、コ
イルばね２８を欠除し、ピストン９の背面側を気密に保
って、その背圧とダクｌ−１内の圧力バランスによって
ピストン９を作動させるようにしてもよい。In this embodiment, the piston 9 is used as the movable body that moves within the pressure chamber 2, but the same effect can be obtained by using an iaphragm instead, and the coil spring 28 can be omitted. Alternatively, the back side of the piston 9 may be kept airtight, and the piston 9 may be operated by the back pressure and the pressure balance within the duct 1-1.
又、本実施例では、本発明装置を古タイヤ焼却炉の燃焼
ガス循環管路に適用して、燃焼ガスがブロアで吸入され
る場合について説明したが、逆に気体が圧送装置から圧
送される圧送用の配管に適用することも可能であり、同
じように気体の流通する管内の圧力を一定に保持するこ
とができる。Furthermore, in this embodiment, a case has been described in which the device of the present invention is applied to a combustion gas circulation pipe of an old tire incinerator, and combustion gas is sucked in by a blower. It is also possible to apply this method to pressure-feeding piping, and in the same way, the pressure inside the pipe through which gas flows can be maintained constant.
上記実施例によって具体的に説明したように、本発明の
蝶弁の開度自動調節装置は、ばね、空気等の弾力により
一方向に付勢された可動体によって密閉された圧力室を
気体流通管に接続し、前記可動体が前記気体流通管内の
圧力変動により前記付勢に抗して移動するようにすると
ともに、前記可動体を前記気体流通管内に装置した蝶弁
の開度調節部材に連結して前記可動体の移動により前記
蝶弁の開度を調節する構成′としたことを要旨とするも
のであって、気体流通管内の圧力変動によって作動スる
ピストン、ダイヤフラム等の可動体を用いて蝶弁の開度
を自動的に調節するようにしたから、従来のように高価
な制御装置を使用することなく、炉内圧力を一定に保持
することができるに適用するに極めて好適である。As specifically explained in the above embodiments, the automatic butterfly valve opening adjustment device of the present invention allows gas to flow through a pressure chamber sealed by a movable body biased in one direction by the elasticity of a spring, air, etc. The movable body is connected to a pipe, and the movable body moves against the bias due to pressure fluctuations in the gas flow pipe, and the movable body is installed in the gas flow pipe as an opening adjustment member of a butterfly valve. The main feature is that the opening degree of the butterfly valve is adjusted by the movement of the movable body connected to each other. Since the opening degree of the butterfly valve is automatically adjusted using this method, it is extremely suitable for maintaining the pressure inside the furnace at a constant level without using an expensive control device like in the past. be.
第１図及び第２図は、本発明装置の一実施例を示すもの
で、第１図は一部断面を含む正面図、第２図は一部を破
断した側面図である。
ｌ；ダクト２；圧力室 ９；ピストン １５；移動杆
２１；レバー ８０昼蝶弁 ８２；軸 ３３；弁体、３
４；アーム ３５；連結杆出願人 高砂工業株式会社
代理人 弁理士 野 口 宏FIGS. 1 and 2 show an embodiment of the apparatus of the present invention, with FIG. 1 being a partially sectional front view and FIG. 2 being a partially cut away side view. l; Duct 2; Pressure chamber 9; Piston 15; Moving rod
21; lever 80 day butterfly valve 82; shaft 33; valve body, 3
4; Arm 35; Connecting rod Applicant Takasago Kogyo Co., Ltd. Agent Patent attorney Hiroshi Noguchi
Claims (1)
よって密閉された圧力室を気体流通管に接続し、前記可
動体が前記気体流通管内の圧力変動により前記付勢に抗
して移動するようにするとともに、前記可動体を前記気
体流通管内に装置した蝶弁の開度調節部材に連結して前
記可動体の移動により前記蝶弁の開度を調節する構成と
したことを特徴とする蝶弁の開度自動調節装置A pressure chamber sealed by a movable body biased in one direction by the elasticity of a spring, air, etc. is connected to a gas flow pipe, and the movable body moves against the bias due to pressure fluctuations within the gas flow pipe. In addition, the movable body is connected to an opening adjustment member of a butterfly valve installed in the gas flow pipe, and the opening of the butterfly valve is adjusted by movement of the movable body. Automatic butterfly valve opening adjustment device
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7736882A JPS58193989A (en) | 1982-05-07 | 1982-05-07 | Apparatus for automatically controlling opening of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7736882A JPS58193989A (en) | 1982-05-07 | 1982-05-07 | Apparatus for automatically controlling opening of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58193989A true JPS58193989A (en) | 1983-11-11 |
Family
ID=13631954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7736882A Pending JPS58193989A (en) | 1982-05-07 | 1982-05-07 | Apparatus for automatically controlling opening of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58193989A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100502475B1 (en) * | 2003-04-15 | 2005-07-20 | 주식회사현대밸브 | Non return valve |
| KR100740544B1 (en) * | 2005-07-14 | 2007-07-19 | 주식회사알피엠텍 | Check Valve System |
| JP2010276057A (en) * | 2009-05-26 | 2010-12-09 | Dmw Corp | Swing check valve |
| CN112066008A (en) * | 2020-09-11 | 2020-12-11 | 广东韶钢松山股份有限公司 | Manual adjusting device of coke oven gas collecting pipe |
-
1982
- 1982-05-07 JP JP7736882A patent/JPS58193989A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100502475B1 (en) * | 2003-04-15 | 2005-07-20 | 주식회사현대밸브 | Non return valve |
| KR100740544B1 (en) * | 2005-07-14 | 2007-07-19 | 주식회사알피엠텍 | Check Valve System |
| JP2010276057A (en) * | 2009-05-26 | 2010-12-09 | Dmw Corp | Swing check valve |
| CN112066008A (en) * | 2020-09-11 | 2020-12-11 | 广东韶钢松山股份有限公司 | Manual adjusting device of coke oven gas collecting pipe |
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