JPH07269791A - Fluid pressure regulator and fluid filling device provided with fluid pressure regulator - Google Patents
Fluid pressure regulator and fluid filling device provided with fluid pressure regulatorInfo
- Publication number
- JPH07269791A JPH07269791A JP10347694A JP10347694A JPH07269791A JP H07269791 A JPH07269791 A JP H07269791A JP 10347694 A JP10347694 A JP 10347694A JP 10347694 A JP10347694 A JP 10347694A JP H07269791 A JPH07269791 A JP H07269791A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fluid
- piston
- valve
- pressure regulator
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 64
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は各種流体をパイプ移送す
る際に生じる流体圧力の調整器とこの流体圧力調整器を
配管系路中に備えた流体充填装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid pressure regulator generated when various kinds of fluids are transferred by a pipe, and a fluid filling device provided with the fluid pressure regulator in a piping system.
【０００２】[0002]
【従来の技術】従来、図４に示すような、大型タンク２
０から圧送ポンプ２１及び逆止弁２２並びに充填切替弁
２３を介して小型容器２４へ大型タンク２０内の流体を
充填する流体充填装置において、圧送ポンプ２１の前後
をつなぐバイパスパイプ３１の中間に、手動操作により
常時半開状としたバイパス弁２５を設け、圧送ポンプ２
１による小型容器２４への充填が完了し、充填切替弁２
３を閉じた際に生じる配管内の昇圧を前記バイパス弁２
５により逃がし、再び圧送ポンプ２１に送り込むように
した流体充填装置は公知である。上記バイパス弁２５と
しては、例えばボール弁をはじめ各種の弁が利用可能で
あり、また、バイパス弁２５の代わりに、一定圧を受け
ると弁が開くレリーフ弁（安全弁）を使用するものもあ
る。2. Description of the Related Art Conventionally, a large tank 2 as shown in FIG.
In the fluid filling device that fills the fluid in the large tank 20 into the small container 24 from 0 through the pressure feeding pump 21, the check valve 22, and the filling switching valve 23, in the middle of the bypass pipe 31 that connects the front and rear of the pressure feeding pump 21 to each other. A bypass valve 25, which is normally half-opened by manual operation, is provided, and the pressure pump 2
The filling of the small container 24 by 1 is completed, and the filling switching valve 2
The bypass valve 2 is used to increase the pressure in the pipe when the valve 3 is closed.
A fluid filling device is known which is made to escape by 5 and is sent again to the pressure feed pump 21. As the bypass valve 25, various valves such as a ball valve can be used, and in place of the bypass valve 25, a relief valve (safety valve) that opens when a constant pressure is applied may be used.
【０００３】なお、図４中２６は小型容器２４用の台
秤、２７は充填切替弁２３の前方に設けられた先端に注
入口を有する蛇腹ホース、２８は大型タンク２０下部に
設けられた開閉弁、２９はドレンバルブである。In FIG. 4, 26 is a platform scale for the small container 24, 27 is a bellows hose provided in front of the filling switching valve 23 and having an inlet at the tip, 28 is an opening / closing valve provided under the large tank 20. , 29 are drain valves.
【０００４】[0004]
【発明が解決しようとする課題】前記従来の流体充填装
置においては、充填切替弁２３の閉止に備えてバイパス
弁２５は常時半開状態となっているため常時充填流体の
一部はバイパス弁２５から逃げるので、充填効率が悪
く、また、このバイパス弁２５の代わりにレリーフ弁を
使用するとコンタミナント（汚染要因物）が生じるとい
う問題点を有するものであった。In the above-mentioned conventional fluid filling device, the bypass valve 25 is always in the half-open state in preparation for the closing of the filling switching valve 23, so that a part of the constantly filling fluid flows from the bypass valve 25. Since it escapes, the filling efficiency is poor, and if a relief valve is used instead of the bypass valve 25, contaminants (contaminants) occur.
【０００５】また、充填効率を上げるためバイパス弁２
５の開度を少なくすると、小型容器への流体の充填完了
時に充填切替弁２５を閉じた際パイプ内の流体圧が急上
昇し、圧送ポンプ２１への過負荷が生じて圧送ポンプ駆
動モータの過電流防止機構が働いてポンプが停止した
り、ポンプシャフト折損などの故障の原因となる。Further, in order to improve the filling efficiency, the bypass valve 2
When the opening degree of 5 is decreased, the fluid pressure in the pipe increases sharply when the filling switching valve 25 is closed when the filling of the fluid into the small container is completed, and the overload of the pressure feeding pump 21 occurs, causing the overpressure of the pressure feeding pump drive motor. The current prevention mechanism will work, causing the pump to stop or causing a failure such as breakage of the pump shaft.
【０００６】本発明は、前記従来の流体充填装置のもつ
諸問題点を解決することを技術的課題とするものであ
る。[0006] The present invention has a technical object to solve various problems of the conventional fluid filling device.
【０００７】[0007]
【課題を解決するための手段】前記技術的課題は、従来
の流体充填装置における逆止弁２２と充填切替弁２３と
の間に本発明に係る流体圧力調整器を設けて、充填切替
弁２３閉止時に生じるパイプ内の流体圧力を検知し、そ
の圧力に応じて前記バイパス弁２５の開度を調整するこ
とによって解決できる。The above-mentioned technical problem is that the fluid pressure regulator according to the present invention is provided between the check valve 22 and the filling switching valve 23 in the conventional fluid filling device, and the filling switching valve 23 is provided. This can be solved by detecting the fluid pressure in the pipe that occurs when the valve is closed and adjusting the opening of the bypass valve 25 according to the pressure.
【０００８】すなわち、本発明に係る流体圧力調整器
は、図２、３に示す通り、円筒状シリンダー１の内部
に、上下にピストンリング２，３を備えたピストンロッ
ド４の一側部中央にラック５を形成したピストン６を上
下動可能に設けると共に該ラック５と噛み合う歯車７を
備えたバルブ駆動軸８を円筒状シリンダー１から側方に
突出させて設け、当該円筒状シリンダー１内の上部のピ
ストンリング２とラック５の上端との中間部に、内周部
にシールリング９を備えた仕切壁１０を設けて上部のピ
ストンリング２と仕切壁１０との間に気密状の圧力調整
室１１を形成し、前記円筒状シリンダー１内の上部のピ
ストンリング２の上方にピストン６を常時下方に付勢す
る加圧手段１２を設けると共に円筒状シリンダー１内の
下部のピストンリング３の下方に流通口１３を貫通状に
設け、さらに前記圧力調整室１１に空気送入口１７を設
けてなる流体充填装置用流体圧力調整器１５である。That is, as shown in FIGS. 2 and 3, the fluid pressure regulator according to the present invention has a cylindrical cylinder 1 having a piston rod 4 provided with piston rings 2 and 3 at the center of one side. A piston 6 forming a rack 5 is provided so as to be movable up and down, and a valve drive shaft 8 having a gear 7 meshing with the rack 5 is provided so as to project laterally from the cylindrical cylinder 1, and an upper part in the cylindrical cylinder 1 is provided. A partition wall 10 provided with a seal ring 9 on an inner peripheral portion is provided in an intermediate portion between the piston ring 2 and the upper end of the rack 5, and an airtight pressure adjusting chamber is provided between the upper piston ring 2 and the partition wall 10. 11, a pressurizing means 12 for constantly urging the piston 6 downward is provided above the upper piston ring 2 in the cylindrical cylinder 1, and the lower piston ring in the cylindrical cylinder 1 is provided. Of providing the circulation port 13 in a penetrating manner downward, it is further the pressure adjusting chamber 11 fluid-filled device for a fluid pressure regulator 15 formed by providing an air inlet port 17 in.
【０００９】また、本発明に係る流体圧力調整器を備え
た流体充填装置は、図１〜３に示す通り、大型タンク２
０から圧送ポンプ２１及び逆止弁２２並びに充填切替弁
２３を介して小型容器２４へ流体を充填するように配管
すると共に、圧送ポンプ２１の前後をつなぐバイパスパ
イプ３１の中間にバイパス弁２５を設けてなる流体充填
装置において、前記構成の流体圧力調整器１５における
貫通状の流通口１３を前記逆止弁２２と前記充填切替弁
２３の間に接続すると共にバルブ駆動軸８を前記バイパ
ス弁２５の操作軸と連結させ、空気送入口１７から圧縮
空気を送入するようにしてなる流体圧力調整器１５を備
えた流体充填装置である。Further, the fluid filling device provided with the fluid pressure regulator according to the present invention, as shown in FIGS.
Piping is performed so that the small container 24 is filled with fluid from 0 through the pressure feeding pump 21, the check valve 22, and the filling switching valve 23, and the bypass valve 25 is provided in the middle of the bypass pipe 31 that connects the front and rear of the pressure feeding pump 21. In the fluid filling device configured as described above, the through-flow passage 13 of the fluid pressure regulator 15 having the above configuration is connected between the check valve 22 and the filling switching valve 23, and the valve drive shaft 8 is connected to the bypass valve 25. It is a fluid filling device provided with a fluid pressure adjuster 15 which is connected to an operation shaft and which feeds compressed air from an air feed port 17.
【００１０】[0010]
【作用】本発明に係る流体圧力調整器においては、減圧
弁１４により減圧した圧縮空気を圧力調整室１１内に送
り込むことにより下部のピストンリング３の下方にかか
る圧力を調整することができるため、円筒状シリンダー
下端部の流通口１３を通過する流体の圧力を一定圧に調
整することができる。そして、その流体圧が上昇した場
合には上昇圧力に応じてピストン６が上昇し、ピストン
ロッド４のラック５と歯車７の噛み合いによりバルブ駆
動軸８が回転するので、この回転力を利用してバイパス
弁２５の開度を大きくしたり、圧送ポンプ２１の回転力
を減じるように作用させてパイプ内の圧力を下げること
ができる。In the fluid pressure regulator according to the present invention, the pressure applied to the lower portion of the lower piston ring 3 can be regulated by sending the compressed air decompressed by the pressure reducing valve 14 into the pressure regulating chamber 11. The pressure of the fluid passing through the circulation port 13 at the lower end of the cylindrical cylinder can be adjusted to a constant pressure. When the fluid pressure rises, the piston 6 rises according to the rising pressure, and the rack 5 of the piston rod 4 and the gear 7 mesh with each other to rotate the valve drive shaft 8. The pressure in the pipe can be lowered by increasing the opening degree of the bypass valve 25 or reducing the rotational force of the pressure pump 21.
【００１１】また、本発明に係る流体圧力調整器を備え
た流体充填装置においては、小型容器２４への充填が完
了し、充填切替弁２３を閉止した際においても圧送ポン
プ２１は回転し続けているのでパイプ内の圧力は上昇す
るが、パイプの途中に流通口１３を連結した流体圧力調
整器１５のピストン６を上昇圧力に応じて押し上げるた
め、このピストン６と同時にピストンロッド４も上昇
し、ピストンロッド４に設けられているラック５と噛み
合っている歯車７を作動するので、この歯車７の回転に
よりバイパス弁２５の操作軸と連結されているバルブ駆
動軸８を回転してバイパス弁２５を上昇圧力に応じて開
く。これにより圧送ポンプ２１により送り続けられる流
体はバイパス弁２５を介して圧送ポンプ２１を中心に循
環するので、パイプ内や圧送ポンプ２１には過負荷が掛
からない。Further, in the fluid filling device provided with the fluid pressure regulator according to the present invention, the pressure feed pump 21 continues to rotate even when the filling of the small container 24 is completed and the filling switching valve 23 is closed. Therefore, the pressure in the pipe rises, but since the piston 6 of the fluid pressure regulator 15 connecting the flow port 13 in the middle of the pipe is pushed up according to the rising pressure, the piston rod 4 also rises at the same time as this piston 6, Since the gear 7 meshing with the rack 5 provided on the piston rod 4 is actuated, the rotation of the gear 7 rotates the valve drive shaft 8 connected to the operation shaft of the bypass valve 25 to operate the bypass valve 25. Open according to rising pressure. As a result, the fluid that is continuously sent by the pressure pump 21 circulates around the pressure pump 21 via the bypass valve 25, so that the pipe and the pressure pump 21 are not overloaded.
【００１２】[0012]
【実施例】以下、本発明の実施例を図に基づき説明す
る。図２、図３は本発明に係る流体圧力調整器１５の構
造を示す縦断正面図と縦断側面図である。図中１は、円
筒状シリンダーで、図示例では上部円筒室１ａ、中央部
の歯車室１ｂおよび下端部にシリンダーを直交的に貫通
する流通口１３を備えた下部円筒室１ｃからなってお
り、該流通口１３の両側には配管接続用のフランジ１８
が設けられている。Embodiments of the present invention will be described below with reference to the drawings. 2 and 3 are a vertical sectional front view and a vertical sectional side view showing the structure of the fluid pressure regulator 15 according to the present invention. In the figure, reference numeral 1 denotes a cylindrical cylinder, which in the illustrated example comprises an upper cylindrical chamber 1a, a central gear chamber 1b, and a lower cylindrical chamber 1c provided with a flow port 13 penetrating the cylinder orthogonally at the lower end, Flange 18 for pipe connection is provided on both sides of the flow port 13.
Is provided.
【００１３】この円筒状シリンダー１内には、上下にピ
ストンリング２、３を備えたピストンロッド４の一側部
中央にラック５を形成したピストン６が上下動可能に設
けられている。In the cylindrical cylinder 1, a piston 6 having a rack 5 formed at the center of one side of a piston rod 4 having piston rings 2 and 3 vertically provided is vertically movable.
【００１４】即ち、このピストン６における上部のピス
トンリング２が上部円筒室１ａ内に位置し、下部のピス
トンリング３が下部円筒室１ｃ内の上半部に位置し、ピ
ストンロッド４のラック５の部分が中央部の歯車室１ｂ
の中央部から下半部にかけて位置するように設けられて
おり、ピストン６は上部円筒室１ａの下部内周面に設け
られた上部のピストンリング用のストッパー１６により
下限が定められ、この位置において上部のピストンリン
グ２と後記する仕切壁１０との間に圧力調整室１１を確
保すると共に下部のピストンリング３の位置は流通口１
３の上方に位置するようになっている。That is, the upper piston ring 2 of the piston 6 is located in the upper cylindrical chamber 1a, the lower piston ring 3 is located in the upper half of the lower cylindrical chamber 1c, and the rack 5 of the piston rod 4 is Gear chamber 1b with central part
Is provided so as to be located from the central portion to the lower half portion of the piston, and the lower limit of the piston 6 is determined by an upper piston ring stopper 16 provided on the lower inner peripheral surface of the upper cylindrical chamber 1a. A pressure adjusting chamber 11 is secured between the upper piston ring 2 and a partition wall 10 to be described later, and the lower piston ring 3 is positioned at the flow port 1
It is located above 3.
【００１５】７は、前記ラック５と噛み合う歯車の一種
である扇形歯車で、この扇形歯車７の回転中心に設けら
れたバルブ駆動軸８はピストンロッド４と直交する方向
に円筒状シリンダー１の歯車室１ｂから突出させて設け
られている。なお、この歯車７はピニオンでもよい。Reference numeral 7 denotes a fan gear that is a kind of gear that meshes with the rack 5. A valve drive shaft 8 provided at the center of rotation of the fan gear 7 is a gear of the cylindrical cylinder 1 in a direction orthogonal to the piston rod 4. It is provided so as to project from the chamber 1b. The gear 7 may be a pinion.
【００１６】１０は、円筒状シリンダー１内の上部円筒
室１ａの下端部、即ち、上部のピストンリング２とラッ
ク５の上端との中間部に設けられた仕切壁で、内周部に
ピストンロッド４との間をシールするシールリング９が
設けられており、この仕切壁１０と上部のピストンリン
グ２との間に気密状の圧力調整室１１を形成している。Reference numeral 10 denotes a partition wall provided at a lower end portion of the upper cylindrical chamber 1a in the cylindrical cylinder 1, that is, an intermediate portion between the upper piston ring 2 and the upper end of the rack 5, and a piston rod is provided at an inner peripheral portion thereof. 4 is provided with a seal ring 9 that seals between the partition wall 10 and the piston ring 2, and an airtight pressure adjusting chamber 11 is formed between the partition wall 10 and the upper piston ring 2.
【００１７】この圧力調整室１１の側壁には図３に示す
ような空気送入口１７が設けられており、この空気送入
口１７から所定圧の圧縮空気が減圧弁１４を介して送入
されるようになっている。An air inlet 17 as shown in FIG. 3 is provided on the side wall of the pressure adjusting chamber 11, and compressed air of a predetermined pressure is fed from the air inlet 17 through the pressure reducing valve 14. It is like this.
【００１８】１２は、円筒状シリンダー１の上部円筒室
１ａ内に、上部のピストンリング２の上面と上部円筒室
１ａの上壁１９との間に設けられた加圧手段としての圧
縮コイルバネで、ピストン６を常時一定の圧力にて下方
に付勢する機能を有し、本実施例の場合、このバネ圧は
４kg／cm2 に設定されている。なお、上記の加圧手段１
２としては、圧縮コイルバネの代わりに一定空気圧、こ
の例では４kg／cm2 の圧力を、下方に付勢する空気バネ
でもよい。Reference numeral 12 denotes a compression coil spring as a pressurizing means provided in the upper cylindrical chamber 1a of the cylindrical cylinder 1 between the upper surface of the upper piston ring 2 and the upper wall 19 of the upper cylindrical chamber 1a. It has a function of constantly urging the piston 6 downward with a constant pressure, and in the case of this embodiment, the spring pressure is set to 4 kg / cm 2 . The above-mentioned pressurizing means 1
Instead of the compression coil spring 2, a constant air pressure, in this example, a pressure of 4 kg / cm 2 may be an air spring that urges downward.
【００１９】従って、上記圧力調整室１１内に所定圧の
圧縮空気を送り込むことにより、上部の圧縮コイルバネ
１２による圧力を減ずるように調整すればピストン６は
上昇し、下部のピストンリング３の下方に調整された一
定の圧力が掛ることになる。Therefore, if compressed air having a predetermined pressure is fed into the pressure adjusting chamber 11 so that the pressure by the upper compression coil spring 12 is reduced, the piston 6 rises and the lower piston ring 3 moves downward. Adjusted constant pressure will be applied.
【００２０】次に、上記流体圧力調整器１５を備えた流
体充填装置を図１に基づき説明する。本発明に係る流体
充填装置は図４に示す従来の装置をベースとするもの
で、従来の逆止弁２２と充填切替弁２３との間に前記流
体圧力調整器１５を介在させたものである。Next, a fluid filling device equipped with the fluid pressure regulator 15 will be described with reference to FIG. The fluid filling device according to the present invention is based on the conventional device shown in FIG. 4, in which the fluid pressure regulator 15 is interposed between the conventional check valve 22 and the filling switching valve 23. .
【００２１】即ち、大型タンク２０からパイプ３０を介
して圧送ポンプ２１、逆止弁２２、充填切替弁２３を順
次連結するに際し、該圧送ポンプ２１の前後をつなぐバ
イパスパイプ３１の中間にバイパス弁２５を常時閉の状
態にて配置すると共に、逆止弁２２と充填切替弁２３と
の間のパイプ３０に前記流体圧力調整器１５の流通口１
３を接続し、該流体圧力調整器１５から側方に突出して
いるバルブ駆動軸８を前記バイパス弁２５の操作軸と連
結させたものである。なお、前記圧送ポンプ２１をはじ
め逆止弁２２、充填切替弁２３、バイパス弁２５等は市
販品が利用できるものである。That is, when the pressure feed pump 21, the check valve 22 and the filling switching valve 23 are sequentially connected from the large tank 20 via the pipe 30, the bypass valve 25 is provided in the middle of the bypass pipe 31 connecting the front and rear of the pressure feed pump 21. Is placed in a normally closed state, and the flow port 1 of the fluid pressure regulator 15 is connected to the pipe 30 between the check valve 22 and the filling switching valve 23.
3, the valve drive shaft 8 protruding laterally from the fluid pressure regulator 15 is connected to the operation shaft of the bypass valve 25. The pressure pump 21, the check valve 22, the filling switching valve 23, the bypass valve 25, etc. can be commercially available products.
【００２２】そして、流体圧力調整器１５の圧力調整室
１１への圧縮空気の送入は、コンプレッサー（図示せ
ず）から減圧弁１４を介してピストン６の調整に必要な
圧力の圧縮空気がエアパイプ３２を介して空気送入口１
７から送入されるようになっている。なお、図中３３は
圧力計で、これについてもコンプレッサーや減圧弁１４
と共に市販品が利用できるものである。The compressed air is fed into the pressure adjusting chamber 11 of the fluid pressure adjuster 15 from the compressor (not shown) through the pressure reducing valve 14 so that the compressed air having a pressure necessary for adjusting the piston 6 is supplied to the air pipe. Air inlet 1 through 32
It is supposed to be sent from 7. In the figure, numeral 33 is a pressure gauge, which also has a compressor and a pressure reducing valve 14
A commercially available product can be used together with this.
【００２３】次に、本発明に係る流体充填装置の作動に
つき、比重０．９５、粘度５０００cps の液状化学物質
（以下「充填液」という）を、圧送ポンプ２１として
「バイデルポンプ」（三浦工業（株）製ＶＬＮ型）を使
用し、圧力２kg／cm2 にて容量５ｍ3 の大型タンク２０
から容量２００l の小型容器（ドラム缶）に内径４０mm
のパイプ３０を介して充填する場合を例にとって説明す
る。Next, regarding the operation of the fluid filling apparatus according to the present invention, a liquid chemical substance having a specific gravity of 0.95 and a viscosity of 5000 cps (hereinafter referred to as "filling liquid") is used as a pressure pump 21 by a "Videl pump" (Miura Industry Co., Ltd. VLN type), and a large tank 20 with a pressure of 2 kg / cm 2 and a capacity of 5 m 3.
To a small container (drum) with a capacity of 200 l and an inner diameter of 40 mm
The case of filling through the pipe 30 will be described as an example.
【００２４】充填の開始に先立ち、流体圧力調整器１５
内の圧縮コイルバネ１２のバネ圧４kg／cm2 に対し、圧
力調整室１１内にコンプレッサーからの圧縮空気（６kg
／cm2 ）を減圧弁１４にて２kg／cm2 に減圧して送り込
み、ピストン６の圧力、即ち、下部のピストンリング３
下方の流通口１３内の圧力を２kg／cm2 にする。Prior to the start of filling, the fluid pressure regulator 15
For the spring pressure of 4 kg / cm 2 of the compression coil spring 12 inside, compressed air from the compressor (6 kg
/ Cm 2 ) is reduced to 2 kg / cm 2 by the pressure reducing valve 14 and fed, and the pressure of the piston 6, that is, the lower piston ring 3
The pressure in the lower flow port 13 is set to 2 kg / cm 2 .
【００２５】この際、圧縮空気の圧力によりピストンロ
ッド４は少し上昇するので、ラック５と噛み合っている
扇形歯車７が少し回転し、バルブ駆動軸８を介してバイ
パス弁２５を少し（約２０％）開いた状態となる。At this time, since the piston rod 4 is slightly raised by the pressure of the compressed air, the sector gear 7 meshing with the rack 5 is slightly rotated, and the bypass valve 25 is slightly moved (about 20%) via the valve drive shaft 8. ) It will be open.
【００２６】次いで、大型タンク２０下部の開閉弁２８
を開け、圧送ポンプ２１を２kg／cm2 にて運転する。こ
の状態で充填切替弁２３を開にすると大型タンク２０内
の充填液は２kg／cm2 の圧力にて蛇腹ホース２７から小
型容器２４内に充填される。Next, the open / close valve 28 at the bottom of the large tank 20.
Open and operate the pressure pump 21 at 2 kg / cm 2 . When the filling switching valve 23 is opened in this state, the filling liquid in the large tank 20 is filled into the small container 24 from the bellows hose 27 at a pressure of 2 kg / cm 2 .
【００２７】小型容器２４への充填が台秤２６の計量表
示により規定量に達した時、充填切替弁２３を閉じて充
填を停止すると、圧送ポンプ２１はその後も回転し続け
充填液を圧送し続けているため、圧送ポンプ２１より下
流側のパイプ３０内および流体圧力調整器１５下端の流
通口１３内の圧力が上昇する。When the filling into the small container 24 reaches the specified amount according to the weighing display on the platform scale 26, if the filling switching valve 23 is closed to stop the filling, the pressure feed pump 21 continues to rotate and feeds the filling liquid under pressure. Therefore, the pressure in the pipe 30 on the downstream side of the pressure pump 21 and in the flow port 13 at the lower end of the fluid pressure regulator 15 increases.
【００２８】この圧力の上昇が２kg／cm2 を越えると、
下部のピストンリング３を介してピストン６が押し上げ
られ、ピストンロッド４のラック５と噛み合っている扇
形歯車７が回転し、これと一体のバルブ駆動軸８を介し
てバイパス弁２５を上昇圧力に応じて自動的に開き、充
填液を圧送ポンプ２１の上流側と下流側にてバイパスパ
イプ３１を通じ循環させるのでパイプ３０内の圧力は設
定したほぼ２kg／cm2に保持される。When the increase in pressure exceeds 2 kg / cm 2 ,
The piston 6 is pushed up via the lower piston ring 3, the fan gear 7 meshing with the rack 5 of the piston rod 4 rotates, and the bypass valve 25 responds to the rising pressure via the valve drive shaft 8 integrated therewith. Is automatically opened, and the filling liquid is circulated through the bypass pipe 31 on the upstream side and the downstream side of the pressure feed pump 21, so that the pressure in the pipe 30 is maintained at a set value of about 2 kg / cm 2 .
【００２９】次いで、次の小型容器２４に充填すべく充
填切替弁２３を開くと、パイプ内の充填液は下流側に流
れ、流体圧力調整器１５下部の流通口１３内の圧力が下
がるのでピストン６が下がり、これと連動しているバイ
パス弁２５を前記とは逆の作用にて元の一部開いた状態
に戻すため、当初の圧力にて充填可能となる。Next, when the filling switching valve 23 is opened to fill the next small container 24, the filling liquid in the pipe flows to the downstream side, and the pressure in the flow port 13 at the lower part of the fluid pressure regulator 15 decreases, so that the piston 6 is lowered, and the bypass valve 25 interlocked therewith is returned to the original partially opened state by the action opposite to the above, so that the filling can be performed with the initial pressure.
【００３０】この場合、小型容器２４に充填液を１８０
kg充填するのに要した時間は約３分で、充填切替弁２３
閉止時においてもハンチングは起こらず何の異常もみら
れなかった。一方、流体圧力調整器１５を備えない図４
に示す従来の装置にてバイパス弁２５を半開状態として
充填したところ約５分を要し、充填切替弁２３閉止時に
は圧送ポンプ２１近辺にて充填液のハンチングと思われ
る振動が生じた。In this case, the small container 24 is filled with the filling liquid 180
The time required to fill kg is about 3 minutes, and the filling switching valve 23
Hunting did not occur even when closed, and no abnormality was observed. On the other hand, the fluid pressure regulator 15 is not provided in FIG.
It took about 5 minutes to fill the bypass valve 25 in the half-opened state in the conventional device shown in FIG. 5, and when the filling switching valve 23 was closed, vibrations that seemed to be hunting of the filling liquid occurred near the pressure pump 21.
【００３１】[0031]
【発明の効果】本発明に係る流体圧力調整器は、円筒状
シリンダー内のピストンを常時は一定圧にて押し下げる
と共に、圧力調整室１１内にこの押し下げ力に抗して所
望圧の圧縮空気を押し上げ方向に送入することによりピ
ストンの圧力を調整する方式を採っているから、圧力調
整が容易である。The fluid pressure regulator according to the present invention constantly pushes down the piston in the cylindrical cylinder at a constant pressure, and the compressed air having a desired pressure is pushed into the pressure regulation chamber 11 against the pushing force. Since the method of adjusting the pressure of the piston by feeding in the pushing direction is adopted, the pressure adjustment is easy.
【００３２】さらに、ピストンの上下動をピストンロッ
ドに設けられたラックとこれに噛み合う歯車を介してバ
ルブ駆動軸によりバイパス弁を自動的に開閉するように
したため、充填バルブの閉止時、充填液はバイパス弁を
介して自動的に循環され、圧送ポンプやパイプに大きな
負荷が加わることがなく、ハンチングも生じない。Furthermore, since the bypass valve is automatically opened / closed by the valve drive shaft via the rack provided on the piston rod and the gear meshing with the rack provided on the piston rod, when the filling valve is closed, the filling liquid is It is automatically circulated through the bypass valve, no large load is applied to the pressure pump and the pipe, and hunting does not occur.
【００３３】本発明に係る流体充填装置においては、逆
止弁と充填切替弁との間に流体圧力調整器を介在させ、
この流体圧力調整器による検知圧力に応じてバイパス弁
を自動的に開くように連動させているので、圧送ポンプ
やパイプへの過負荷が自動的に防止でき、コンタミナン
トも生じない。In the fluid filling device according to the present invention, a fluid pressure regulator is interposed between the check valve and the filling switching valve,
Since the bypass valve is interlocked so as to be automatically opened according to the pressure detected by the fluid pressure regulator, overloading of the pressure pump and the pipe can be automatically prevented and no contamination occurs.
【図１】本発明に係る流体充填装置の配管系統図FIG. 1 is a piping system diagram of a fluid filling device according to the present invention.
【図２】本発明に係る流体圧力調整器の縦断正面図FIG. 2 is a vertical sectional front view of a fluid pressure regulator according to the present invention.
【図３】本発明に係る流体圧力調整器の縦断側面図FIG. 3 is a vertical sectional side view of a fluid pressure regulator according to the present invention.
【図４】従来の流体充填装置の配管系統図FIG. 4 is a piping system diagram of a conventional fluid filling device.
１ 円筒状シリンダー ２ 上部のピストンリング ３ 下部のピストンリング ４ ピストンロッド ５ ラック ６ ピストン ７
歯車 ８ 駆動軸 ９ シールリング １
０ 仕切壁 １１ 圧力調整室 １２ 加圧手段
１３ 流通口 １４ 減圧弁 １５ 流体圧力調整器
１６ ストッパー １７ 空気送込口 １８ フランジ
１９ 上壁 ２０ 大型タンク ２１ 圧送ポンプ
２２ 逆止弁 ２３ 充填切替弁 ２４ 小型容器
２５ バイパス弁 ２６ 台秤 ２７ 蛇腹ホース
２８ 開閉弁 ２９ ドレンバルブ ３０ パイプ
３１ バイパスパイプ ３２ エアパイプ ３３ 圧力計1 Cylindrical cylinder 2 Upper piston ring 3 Lower piston ring 4 Piston rod 5 Rack 6 Piston 7
Gear 8 Drive shaft 9 Seal ring 1
0 partition wall 11 pressure adjusting chamber 12 pressurizing means
13 flow port 14 pressure reducing valve 15 fluid pressure regulator
16 Stopper 17 Air inlet 18 Flange
19 Upper wall 20 Large tank 21 Pressure pump
22 Check valve 23 Fill switching valve 24 Small container
25 bypass valve 26 scale 27 bellows hose
28 Open / close valve 29 Drain valve 30 Pipe
31 Bypass Pipe 32 Air Pipe 33 Pressure Gauge
Claims (2)
ストンリング２，３を備えたピストンロッド４の一側部
中央にラック５を形成したピストン６を上下動可能に設
けると共に該ラック５と噛み合う歯車７を備えたバルブ
駆動軸８を円筒状シリンダー１から側方に突出させて設
け、当該円筒状シリンダー１内の上部のピストンリング
２とラック５の上端との中間部に、内周部にシールリン
グ９を備えた仕切壁１０を設けて上部のピストンリング
２と仕切壁１０との間に気密状の圧力調整室１１を形成
し、前記円筒状シリンダー１内の上部のピストンリング
２の上方にピストン６を常時下方に付勢する加圧手段１
２を設けると共に円筒状シリンダー１内の下部のピスト
ンリング３の下方に流通口１３を貫通状に設け、さらに
前記圧力調整室１１に空気送入口１７を設けたことを特
徴とする流体充填装置用流体圧力調整器。1. A piston 6 having a rack 5 formed at the center of one side of a piston rod 4 having upper and lower piston rings 2, 3 is movably provided inside a cylindrical cylinder 1. A valve drive shaft 8 provided with a meshing gear 7 is provided so as to project laterally from the cylindrical cylinder 1, and an inner peripheral portion is provided at an intermediate portion between the upper piston ring 2 and the upper end of the rack 5 in the cylindrical cylinder 1. A partition wall 10 provided with a seal ring 9 is provided in the upper part to form an airtight pressure adjusting chamber 11 between the upper piston ring 2 and the partition wall 10. Pressurizing means 1 for constantly urging the piston 6 downwardly
2 is provided with a through hole 13 below the lower piston ring 3 in the cylindrical cylinder 1, and an air inlet 17 is provided in the pressure adjusting chamber 11. Fluid pressure regulator.
逆止弁２２並びに充填切替弁２３を介して小型容器２４
へ流体を充填するように配管すると共に、圧送ポンプ２
１の前後をつなぐバイパスパイプ３１の中間にバイパス
弁２５を設けてなる流体充填装置において、 請求項１記載の流体圧力調整器における貫通状の流通口
１３を前記逆止弁２２と前記充填切替弁２３の間に接続
すると共にバルブ駆動軸８を前記バイパス弁２５の操作
軸と連結させ、空気送入口１７から圧縮空気を送入する
ようにしたことを特徴とする流体圧力調整器を備えた流
体充填装置。2. A small container 24 from a large tank 20 via a pressure pump 21, a check valve 22 and a filling switching valve 23.
Piping to fill the fluid into the pressure pump 2
In the fluid filling device in which the bypass valve 25 is provided in the middle of the bypass pipe 31 that connects the front and rear of 1, the through-flow passage 13 in the fluid pressure regulator according to claim 1 is connected to the check valve 22 and the filling switching valve. A fluid having a fluid pressure regulator, characterized in that the valve drive shaft 8 is connected between the valve 23 and the operation shaft of the bypass valve 25, and compressed air is fed from the air inlet 17. Filling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347694A JP2572355B2 (en) | 1994-03-25 | 1994-03-25 | Fluid pressure regulator and fluid filling device provided with the fluid pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347694A JP2572355B2 (en) | 1994-03-25 | 1994-03-25 | Fluid pressure regulator and fluid filling device provided with the fluid pressure regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07269791A true JPH07269791A (en) | 1995-10-20 |
| JP2572355B2 JP2572355B2 (en) | 1997-01-16 |
Family
ID=14355067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10347694A Expired - Lifetime JP2572355B2 (en) | 1994-03-25 | 1994-03-25 | Fluid pressure regulator and fluid filling device provided with the fluid pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2572355B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168397A (en) * | 2000-11-30 | 2002-06-14 | Ishikawajima Plant Construction Co Ltd | Pressure delivery method and apparatus for low temperature liquid |
-
1994
- 1994-03-25 JP JP10347694A patent/JP2572355B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168397A (en) * | 2000-11-30 | 2002-06-14 | Ishikawajima Plant Construction Co Ltd | Pressure delivery method and apparatus for low temperature liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2572355B2 (en) | 1997-01-16 |
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Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960730 |