JPS5839570B2 - Chemical injection device - Google Patents
Chemical injection deviceInfo
- Publication number
- JPS5839570B2 JPS5839570B2 JP17159979A JP17159979A JPS5839570B2 JP S5839570 B2 JPS5839570 B2 JP S5839570B2 JP 17159979 A JP17159979 A JP 17159979A JP 17159979 A JP17159979 A JP 17159979A JP S5839570 B2 JPS5839570 B2 JP S5839570B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- valve
- injection
- chemical solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
【発明の詳細な説明】
この発明は、発泡性を有する薬液の定量注入装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a quantitative injection device for effervescent chemical liquid.
水酸化ナトリウム液に塩素を封じ込んで製造した次亜塩
素酸ナトリウム液（以下、ＳＨＣと呼ぶ）は、飲料水の
滅菌剤や浄化槽の消毒剤、その他種様の生産処理プラン
トでも用いられる等、塩素と並んでかなり汎用性の高い
薬品である。Sodium hypochlorite solution (hereinafter referred to as SHC), which is produced by trapping chlorine in sodium hydroxide solution, is used as a sterilizer for drinking water, a disinfectant for septic tanks, and in various other production and treatment plants. Along with chlorine, it is a highly versatile chemical.
ところが、塩素はどの危険性と取扱い上の難しはないも
のの、以前毒性の強い劇薬であることには変りなく、そ
の取扱い上において注意を要する。However, although chlorine is not dangerous or difficult to handle, it is still a highly toxic and powerful drug, and care must be taken when handling it.
例えば、強い酸化作用を有するため、鉄及び他の金属材
料を用いて装置を構成することができず、しかも常温、
常圧におち・て活発に発泡し、かつ液自体からの析出物
や外部から混入する塵埃が浮遊し懸濁している場合が多
いため、流動途中においてペーパーロックに近い現象が
生じ、圧力をかげて流動させることができない。For example, devices cannot be constructed using iron and other metal materials because of their strong oxidizing properties, and furthermore, they cannot be used at room temperature.
It foams actively under normal pressure, and precipitates from the liquid itself and dust mixed in from the outside are often floating and suspended, so a phenomenon similar to paper lock occurs during flow, causing the pressure to drop. It cannot be made to flow.
現状のＳＨＣ液の消費設備に関する実用化の進展状況を
みても、注入装置を計装化してコンロールする大規模な
プラント的注入システムを別として、消費量の比較的少
ない小型の装置では、調整した注入量が短時間で半減し
、常時人がついて監視修整しなげればならない等の不便
があり、設備の運転、保守面の省力化に効果のある設備
が未だ存在しない。Looking at the current state of progress in the practical application of SHC liquid consumption equipment, apart from large-scale plant-like injection systems where injection equipment is instrumented and controlled, small equipment with relatively low consumption requires adjustment. There are inconveniences such as the injection amount being halved in a short period of time and the need for constant monitoring and repair, and there is still no equipment that is effective in saving labor in equipment operation and maintenance.
この発明は、上記の点にかんがみ、発泡性を有するＳＨ
Ｃ液等の薬液を正確に定量供給し得るようにした小型の
薬液注入装置を提供するものである。In view of the above points, the present invention provides foamable SH
The purpose of the present invention is to provide a small-sized chemical liquid injector that can accurately supply a fixed amount of a chemical liquid such as C liquid.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図に示すように、薬液の充填されたタンク１の下部
と、このタンク１より下方に置かれた薬液受槽２は薬液
供給元管３で接続されており、上記供給元管３に取付け
たバルブ４を開放すると、タンク１内の薬液が薬液受槽
２の方に流れるようになっている。As shown in FIG. 1, the lower part of a tank 1 filled with a chemical solution and a chemical solution receiving tank 2 placed below this tank 1 are connected by a chemical solution supply pipe 3, and the chemical solution is attached to the supply source pipe 3. When the valve 4 is opened, the chemical liquid in the tank 1 flows toward the chemical liquid receiving tank 2.
供給元管３の端部は、第２図に示すように、薬液受槽２
内において起立して上端が開放し、その上部−側には供
給口５が形成されている。As shown in FIG. 2, the end of the supply source pipe 3
It stands upright inside and its upper end is open, and a supply port 5 is formed on the upper side.
この供給元管３の内部には弁孔６が形成され、上記弁孔
６を上側より開閉する弁体７が、薬液受槽２内に設けた
フロート機構８と連動して上記受槽２に流れ込む薬液の
量を制御するようになっている。A valve hole 6 is formed inside this supply source pipe 3, and a valve body 7 that opens and closes the valve hole 6 from above operates in conjunction with a float mechanism 8 provided in the chemical liquid receiving tank 2 to cause the chemical liquid to flow into the liquid receiving tank 2. It is designed to control the amount of
フロート機構８は、給水元管３の上部−側に軸受９を受
け、この軸受９にピン１０を介してアーム１１を揺動自
在に取付け、このアーム１１の供給元管３の上端開放部
に延びる一方の端部に弁体７の弁棒７′を係合させ、か
つ他方の端部にフロート１２を取付けている。The float mechanism 8 receives a bearing 9 on the upper side of the water supply pipe 3 , and an arm 11 is swingably attached to the bearing 9 via a pin 10 . A valve stem 7' of the valve body 7 is engaged with one extending end, and a float 12 is attached to the other end.
なお、アーム１１の端部にネジ棒１２′をネジ込み、こ
のネジ棒１２′の下端にフロート１２を取付けて、フロ
ート１２の位置を調整し得るようにするのがよい。It is preferable to screw a threaded rod 12' into the end of the arm 11 and attach the float 12 to the lower end of the threaded rod 12' so that the position of the float 12 can be adjusted.
また、弁体７と弁棒７′の連結部及び弁棒７′とアーム
１１の係合部それぞれに遊びをもたせることにより、弁
孔６に弁体７を密着させることができる。Further, by providing play in the connection portion between the valve body 7 and the valve stem 7' and the engagement portion between the valve stem 7' and the arm 11, the valve body 7 can be brought into close contact with the valve hole 6.
前記薬液受槽２には薬液の供給管１３が挿入されている
。A chemical liquid supply pipe 13 is inserted into the chemical liquid receiving tank 2 .
供給管１３の薬液受槽２内に位置する端部は上向きにな
り、その端に円筒状のフィルター１４が取付げられてい
る。The end of the supply pipe 13 located in the chemical liquid receiving tank 2 faces upward, and a cylindrical filter 14 is attached to that end.
フィルター１４は、起立して上端が薬液表面より上方に
突出し、その突出する端部が開放している。The filter 14 stands upright with its upper end protruding above the surface of the drug solution, and its protruding end is open.
また、供給管１３の薬液受槽２より外方に突出する端部
は水平になり、その端に注入管１５が接続されて起立し
ている。Further, the end of the supply pipe 13 that protrudes outward from the chemical liquid receiving tank 2 is horizontal, and the injection pipe 15 is connected to the end and stands upright.
注入管１５は、上部に開気孔１６を有し、下部は開放し
て注入口１７となっている。The injection tube 15 has an open hole 16 at the top and an injection port 17 which is open at the bottom.
この注入管１５には、供給管１３の接続位置より下方の
位置に分岐管１８が接続され、上記分岐管１８との連通
位置に三方制御弁１９が取付けられている。A branch pipe 18 is connected to the injection pipe 15 at a position below the connection position of the supply pipe 13, and a three-way control valve 19 is attached at a position communicating with the branch pipe 18.
三方制御弁１９は、分岐管１８の連通部を挾む上下に第
１、第２の弁孔２０．２１を設け、この第１、第２弁孔
２０，２１間に設けた昇降可能な弁体２２の弁棒２３を
注入管１５の上端より外方に突出させてソレノイド２４
のプランジャ２５に連結し、上記ソレノイド２４の作動
とプランジャ２５を復元させるバネ２６の弾性とによっ
て、弁体２２を昇降させ、第１弁孔２０及び第２弁孔２
１を切換的に開閉させるようにしている。The three-way control valve 19 has first and second valve holes 20 and 21 located above and below the communication portion of the branch pipe 18, and is a valve that can be raised and lowered between the first and second valve holes 20 and 21. The valve stem 23 of the body 22 is made to protrude outward from the upper end of the injection pipe 15 to connect the solenoid 24.
The valve body 22 is raised and lowered by the operation of the solenoid 24 and the elasticity of the spring 26 that restores the plunger 25, and the first valve hole 20 and the second valve hole 2 are connected to the plunger 25.
1 is opened and closed selectively.
なお、ソレノイド２４は電気的に制御されるようになっ
ている。Note that the solenoid 24 is electrically controlled.
前記分岐管１８の端部には計量シリンダ２７が縦向きに
接続されている。A metering cylinder 27 is vertically connected to the end of the branch pipe 18.
このシリンダ２７は上部に開気孔２８を備え、内部で発
生するガスを外部に漏洩させるようになっている。This cylinder 27 is provided with an open hole 28 at the top, so that the gas generated inside leaks to the outside.
なお、計量シリンダ２７は、第２図に示すように、内周
に沿って密着しながら移動可能な円形摺動板２９にネジ
棒３０を固定し、このネジ棒３０をシリンダ端板３１の
ネジ孔３２にネジ合わせた容積可変形シリンダに限定さ
れず、他の任意のシリンダを採用することができる。As shown in FIG. 2, the measuring cylinder 27 has a threaded rod 30 fixed to a circular sliding plate 29 that is movable while closely adhering to the inner periphery, and the threaded rod 30 is connected to a screw on the cylinder end plate 31. The cylinder is not limited to a variable volume cylinder threaded into the hole 32, and any other cylinder may be used.
図中３３は、薬液受槽２の側壁上部に形成した排気孔で
あり、３４は、供給管１３の端部に取付げたバルブであ
る。In the figure, 33 is an exhaust hole formed in the upper part of the side wall of the chemical liquid receiving tank 2, and 34 is a valve attached to the end of the supply pipe 13.
実施例で示す薬液注入装置は上記の構造から成り、ＳＨ
Ｃ液のように、酸化作用の強い薬液を注入する場合には
、装置全体を耐酸性材料、例えば合成樹脂等で形成する
。The chemical injection device shown in the example has the above structure, and the SH
When injecting a chemical solution with a strong oxidizing effect, such as Solution C, the entire device is made of an acid-resistant material, such as a synthetic resin.
いま、薬液供給元管３に取付げたバルブ４を開放すると
、タンク１内の薬液が供給元管３を流れ、開放された弁
孔６を上昇して供給口５からオーバーフローし、薬液受
槽２内に流れ込む。Now, when the valve 4 attached to the chemical liquid supply source pipe 3 is opened, the chemical liquid in the tank 1 flows through the supply source pipe 3, rises through the opened valve hole 6, overflows from the supply port 5, and flows into the chemical liquid receiving tank 2. flows into.
薬液は発泡性を有するため、供給元管３内においてペー
パーロックに近い現象を生じるが、上記供給元管３の上
部が開放しているため、管内に発生するガスはその開放
部より薬液受槽２内に排出され、薬液の流れはスムーズ
である。Since the chemical solution has foaming properties, a phenomenon similar to a paper lock occurs inside the supply source tube 3. However, since the upper portion of the supply source tube 3 is open, the gas generated inside the tube flows from the open portion to the chemical solution receiving tank 2. The chemical solution flows smoothly.
薬液受槽２内に流れ込む薬液の量が増してフロート１２
の位置まで上昇すると上記フロート１２が浮び始め、同
時にアーム１１が揺動し、弁体７は下降して弁孔６を閉
鎖する。The amount of chemical liquid flowing into the chemical liquid receiving tank 2 increases and the float 12
When the float 12 rises to the position shown in FIG.
このため、薬液受槽２に一定量の薬液が溜められる。Therefore, a certain amount of the chemical solution is stored in the chemical solution receiving tank 2.
薬液が、液自体からの析出物や外部から混入する塵埃が
浮遊して懸濁状態にある場合、異物の一部は、薬液受槽
２内において沈降し、分離除去される。When the chemical liquid is in a suspended state with precipitates from the liquid itself and dust mixed in from the outside floating, some of the foreign substances settle in the chemical liquid receiving tank 2 and are separated and removed.
薬液受槽２内に一定量の薬液が貯る状態において、供給
管１３に取付げたバルブ３４を開放すると、薬液受槽２
内の薬液がフィルター１４を通過し、供給管１３に流れ
込む。When the valve 34 attached to the supply pipe 13 is opened when a certain amount of the chemical solution is stored in the chemical solution receiving tank 2, the chemical solution receiving tank 2
The chemical solution inside passes through the filter 14 and flows into the supply pipe 13.
このように、薬液はフィルター１４を通過するためろ過
され、しかもフィルター１４は円筒状であって上部が開
放しているため、発生したガスがフィルタ−１４上部よ
り排気される。In this way, the chemical liquid is filtered as it passes through the filter 14, and since the filter 14 is cylindrical and has an open top, the generated gas is exhausted from the top of the filter 14.
したがって、フィルター１４が液の流動の支障になるこ
とがなく、供給管１３の方にスムーズに流れ込む。Therefore, the filter 14 does not interfere with the flow of the liquid, and the liquid flows smoothly into the supply pipe 13.
供給管１３に薬液が流れ込む状態のとき、三方制御弁１
９の弁体２２は、第２弁孔２１を閉鎖する状態にある。When the chemical solution is flowing into the supply pipe 13, the three-way control valve 1
The valve body 22 of No. 9 is in a state of closing the second valve hole 21.
このため、供給管１３内の薬液は注入管１５内に流れ込
み、その一部が注入管１５内を上昇して薬液受槽２内の
水位と円高位置まで達し、また第１弁孔２０を通過する
薬液は、分岐管１８を流れて計量シリンダ２７内に流れ
込む。Therefore, the chemical liquid in the supply pipe 13 flows into the injection pipe 15, a part of which rises inside the injection pipe 15, reaches a position that is higher than the water level in the chemical liquid receiving tank 2, and also passes through the first valve hole 20. The chemical solution flows through the branch pipe 18 and into the metering cylinder 27.
注入管１５は縦向きであり、その上部に開気孔１６が形
成されているため、発生ガスは管内を上昇して開気孔１
６より外部に漏洩し、また計量シリンダ２７にも上部に
開気孔２８が形成されているため、シリンダ内部の発生
ガスはこの開気孔２８より外部に漏洩する。The injection tube 15 is vertically oriented and has an open hole 16 formed in its upper part, so the generated gas rises inside the tube and flows into the open hole 1.
Since the measuring cylinder 27 also has an open hole 28 formed in the upper part, the gas generated inside the cylinder leaks to the outside through the open hole 28.
したがって計量シリンダ２７内に薬液がスムーズに流れ
込む。Therefore, the medicinal liquid flows smoothly into the measuring cylinder 27.
計量シリンダ２７内が薬液で満されると、ソレノイド２
４が作動し、バネ２６の弾性に抗して弁体２２を上昇さ
せる。When the measuring cylinder 27 is filled with the chemical liquid, the solenoid 2
4 operates to raise the valve body 22 against the elasticity of the spring 26.
このため、第２弁孔２１は開放し、第１弁孔２１が閉鎖
されるため、計量シリンダ２７内の薬液は、分岐管１８
内を上記とは逆方向に流れ、注入管１５の下端の注入口
１７より重力滴下する。Therefore, the second valve hole 21 is opened and the first valve hole 21 is closed, so that the chemical liquid in the metering cylinder 27 is transferred to the branch pipe 18.
The liquid flows inside in the opposite direction to that described above, and drips by gravity from the injection port 17 at the lower end of the injection pipe 15.
定量の液を吐出させる方法には、ピストン式やダイヤフ
ラム弐等のポンプを用いる方法が存在する。Methods for discharging a fixed amount of liquid include methods using a piston type pump, a diaphragm type pump, and the like.
しかしながら、このような方法では、薬液の流動中に伺
らかの形で必らずプレッシャとサイフオン作用のいずれ
か一方を受けるため、常温、常圧で発泡する薬液をスム
ーズに吐出させることが困難である。However, with this method, it is difficult to smoothly discharge a chemical solution that foams at room temperature and pressure because it is inevitably subjected to either pressure or siphon action during the flow of the chemical solution. It is.
また、インジェクター等を用いて強制負圧にて気泡混在
の薬液を吸出する方法も存在するが、このような方法で
は、発生ガスには対応し得るが、液吸出量をコントロー
ルするための複雑な負圧調整機構が必要となり、さらに
はインジェクター作動のための圧力清水が必要である。There is also a method of sucking out the chemical solution containing bubbles using forced negative pressure using an injector, etc. Although this method can deal with the generated gas, it requires a complicated process to control the amount of liquid sucked out. A negative pressure adjustment mechanism is required, and pressure fresh water is also required to operate the injector.
しかるに、この発明においては、第２弁孔２１の開放に
よって、計量シリンダ２７内に流れ込んだ薬液を重力滴
下させるようにしているため、薬液の停滞や流動不良が
なく、所定量の薬液を確実に注入することができる。However, in this invention, by opening the second valve hole 21, the chemical liquid that has flowed into the measuring cylinder 27 is allowed to drip by gravity, so there is no stagnation or flow failure of the chemical liquid, and a predetermined amount of the chemical liquid can be reliably dispensed. Can be injected.
なお、分岐管１８に複数の計量シリンダ２７を接続し、
あるいは容量を可変式とすることによって薬液の注入量
を変化させることができる。Note that a plurality of measuring cylinders 27 are connected to the branch pipe 18,
Alternatively, by making the capacity variable, the injection amount of the drug solution can be changed.
また、ソレノイドに加えてシリンダを採用することがで
きる。Also, a cylinder can be used in addition to a solenoid.
以上のように、この発明によれば、薬液受槽内に一定の
薬液を貯溜したのち、この薬液を計量シリンダ内に流入
させ、三方制御弁の作動による流路切換えによって、計
量シリンダ内の薬液を注入口より重力滴下させるように
したので、所定量の薬液を自動供給することができ、省
人化、省力化に大きな効果をあげることができる。As described above, according to the present invention, after a certain amount of chemical liquid is stored in the chemical liquid receiving tank, this chemical liquid is allowed to flow into the measuring cylinder, and by switching the flow path by operating the three-way control valve, the chemical liquid in the measuring cylinder is Since the liquid is dripped by gravity from the injection port, a predetermined amount of the chemical solution can be automatically supplied, which can have a great effect on labor and labor savings.
また、薬液が流動する注入管や計量シリンダのそれぞれ
上部に開気孔を形成したので、流路内で発生したガスを
流路から自動的に抜気することができ、薬液が管内に滞
溜したり、流動不能になるようなことがなく、薬液の流
動がきわめてスムーズであり、所定量の薬液を確実に注
入することができる。In addition, open holes are formed at the top of each injection tube and metering cylinder through which the chemical liquid flows, so gas generated in the flow path can be automatically vented from the flow path, preventing the chemical liquid from accumulating in the pipe. The medicinal solution flows extremely smoothly without causing any problems or becoming unable to flow, and a predetermined amount of the medicinal solution can be reliably injected.
さらに、三方制御弁は、注入管内において、分岐管の連
通部を挾む上下に第１弁孔と第２弁孔とを設け、この弁
孔間に配置した弁体の弁棒を注入管内を立ち上がらせて
注入管の上方に設けた昇降装置に接続した摩擦動作部分
のない単純な構成であるため、上記三方制御弁を軽い力
でスムーズに切換えることができると共に耐食性の優れ
た樹脂系材料のみの構成が可能となり、さらに、流路が
大きく、かつ縦向きであるため発生ガスを容易に自然除
去することができ、しかも薬液をスムーズに流動させる
ことができる。Furthermore, the three-way control valve has a first valve hole and a second valve hole located above and below the communication part of the branch pipe in the injection pipe, and the valve stem of the valve body disposed between the valve holes is inserted into the injection pipe. Because it has a simple structure with no frictional movement parts, which is connected to a lifting device installed above the injection pipe, the three-way control valve can be switched smoothly with a light force, and is made only of resin-based materials with excellent corrosion resistance. Furthermore, since the flow path is large and vertical, the generated gas can be easily removed naturally, and the chemical solution can flow smoothly.
また、弁体の切換え昇降装置として小形ンレノイドを採
用することができるため、三方制御弁を携帯バッテリー
等の小さな電気エネルギーで容易に制御することができ
る。Furthermore, since a small lenoid can be used as the valve element switching and lifting device, the three-way control valve can be easily controlled with small electrical energy from a portable battery or the like.
第１図は、この発明に係る装置の一実施例を示す正面図
、第２図は同上の要部を拡大して示す断面図である。
２・・・・・・薬液受槽、３・・・・・・薬液供給元管
、５・・・・・・供給口、６・・・・・・弁孔、γ・・
・・・・弁体、８・・・・・・フロート機構、１３・・
・・・・供給管、１４・・・・・・フィルター、１５・
・・・・・注入管、１６・・・・・・開気孔、１８・・
・・・・分岐管、１９・・・・・・三方制御弁、２７・
・・・・・計量シリンダ、２８・・・・・・開気孔。FIG. 1 is a front view showing an embodiment of the apparatus according to the present invention, and FIG. 2 is an enlarged sectional view showing the main parts of the same. 2... Chemical solution receiving tank, 3... Chemical solution supply source pipe, 5... Supply port, 6... Valve hole, γ...
... Valve body, 8 ... Float mechanism, 13 ...
... Supply pipe, 14 ... Filter, 15.
...Injection pipe, 16...Open hole, 18...
... Branch pipe, 19 ... Three-way control valve, 27.
...Measuring cylinder, 28...Open hole.
Claims (1)
して立ち上がらせ、この注入管の上部に開気孔を形成す
ると共に、薬液供給管の端部から下方の位置に分岐管を
接続し、前記注入管内には、この供給管と分岐管の連通
部及び分岐管と注入管下端の連通部を切換的に開閉する
三方制御弁を設け、前記分岐管の端部に計量シリンダを
縦向きに接続しこの計量シリンダの上部に開気孔を形成
し、前記三方制御弁は、注入管内において分岐管の連通
部を挾む上下に第１弁孔と第２弁孔とを設け、この弁孔
間に配置した弁体の弁棒な第１弁孔から注入管内を立ち
上がらせて注入管の上方に設けたンレノイド等の昇降装
置に接続しであることを特徴とする薬液注入装置。 ２ 薬液受槽に薬液供給元管を接続してその端部な薬液
受槽の内部で起立させ、前記薬液供給元管の上端を開放
させると共に上部−側に供給口を形成し、前記薬液供給
元管の内部に設けた弁孔の開閉用弁体な昇降可能に設け
、この弁体を薬液受槽内の水面変化に対応して作動させ
るフロート機構を設け、前記薬液受槽内に薬液供給管の
端部を挿入してその端に円筒状のフィルターを起立して
取付け、上記薬液供給管の薬液受槽より外方に突出して
水平方向に延びる端部に注入管を接続して立ち上がらせ
、この注入管の上部に開気孔を形成すると共に、薬液供
給管の端部から下方の位置に分岐管を接続し、前記注入
管内には、この供給管と分岐管の連通部及び分岐管と注
入管下端の連通部を切換的に開閉する三方制御弁を設け
、前記分岐管の端部に計量シリンダを縦向きに接続しこ
の計量シリンダの上部に開気孔を形成し、前記三方制御
弁は、注入管内において分岐管の連通部を挾む上下に第
１弁孔と第２弁孔とを設け、この弁孔間に配置した弁体
の弁棒を第１弁孔から注入管内を立ち上がらせて注入管
の上方に設けたンレノイド等の昇降装置に接続しである
ことを特徴とする薬液注入装置。[Scope of Claims] 1. An injection tube is connected to the horizontally extending end of the chemical solution supply tube and raised up, an open hole is formed in the upper part of the injection tube, and a position below the end of the chemical solution supply tube is formed. A branch pipe is connected to the injection pipe, and a three-way control valve is provided in the injection pipe to selectively open and close a communication part between the supply pipe and the branch pipe and a communication part between the branch pipe and the lower end of the injection pipe, and the end of the branch pipe A metering cylinder is vertically connected to the metering cylinder, and an open hole is formed in the upper part of the metering cylinder. The inside of the injection pipe is raised from the first valve hole, which is the valve stem of the valve body disposed between the valve holes, and is connected to an elevating device such as a renoid provided above the injection pipe. Injection device. 2 Connect a chemical solution supply source pipe to the chemical solution receiving tank and stand up inside the chemical solution receiving tank at the end thereof, open the upper end of the chemical solution supply source tube and form a supply port on the upper side, and connect the chemical solution supply source pipe A valve body for opening and closing a valve hole provided inside the tank is provided so as to be movable up and down, and a float mechanism is provided to operate this valve body in response to changes in the water level in the chemical liquid receiving tank. Insert the end, attach a cylindrical filter to the end in an upright position, connect the injection pipe to the end of the drug supply pipe that extends horizontally and protrudes outward from the drug reservoir, and make the injection pipe stand up. An open hole is formed in the upper part of the tube, and a branch tube is connected to a position below the end of the drug solution supply tube, and inside the injection tube, there is a communication part between the supply tube and the branch tube, and a lower end of the branch tube and the injection tube. A metering cylinder is vertically connected to the end of the branch pipe, and an open hole is formed in the upper part of the metering cylinder. A first valve hole and a second valve hole are provided above and below the communicating part of the branch pipe, and the valve stem of the valve body disposed between the valve holes is raised from the first valve hole in the injection pipe to open the injection pipe. A chemical liquid injector characterized in that it is connected to an elevating device such as a renoid provided above the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17159979A JPS5839570B2 (en) | 1979-12-26 | 1979-12-26 | Chemical injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17159979A JPS5839570B2 (en) | 1979-12-26 | 1979-12-26 | Chemical injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5691832A JPS5691832A (en) | 1981-07-25 |
| JPS5839570B2 true JPS5839570B2 (en) | 1983-08-31 |
Family
ID=15926145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17159979A Expired JPS5839570B2 (en) | 1979-12-26 | 1979-12-26 | Chemical injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839570B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433079U (en) * | 1987-08-22 | 1989-03-01 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5925335A (en) * | 1982-07-30 | 1984-02-09 | Kitamura Gokin Seisakusho:Kk | Method and apparatus for making pcb harmless |
| KR100410860B1 (en) * | 2001-04-26 | 2003-12-18 | 권이황 | Apparatus to input liquid medicine as a free falling type |
-
1979
- 1979-12-26 JP JP17159979A patent/JPS5839570B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6433079U (en) * | 1987-08-22 | 1989-03-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5691832A (en) | 1981-07-25 |
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