JPH0712838A - Flow stop detector - Google Patents

Flow stop detector

Info

Publication number
JPH0712838A
JPH0712838A JP17625993A JP17625993A JPH0712838A JP H0712838 A JPH0712838 A JP H0712838A JP 17625993 A JP17625993 A JP 17625993A JP 17625993 A JP17625993 A JP 17625993A JP H0712838 A JPH0712838 A JP H0712838A
Authority
JP
Japan
Prior art keywords
electrode
flow
valve body
fluid
valve
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
Application number
JP17625993A
Other languages
Japanese (ja)
Inventor
Shusaku Yokosuka
秀作 横須賀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP17625993A priority Critical patent/JPH0712838A/en
Publication of JPH0712838A publication Critical patent/JPH0712838A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To provide a detector for detecting the stoppage of hydraulic flow positively. CONSTITUTION:A cylindrical body 1 has a hollow section communicated with a flow-in port 13 and a flow-out port 13, 14, respectively, at the opposite ends thereof. An electrode body 2 comprising first and second electrodes 22, 23 is disposed on the flow-in port 13 side in the hollow section of the cylindrical body 1. A channel 33 introduces fluid from the flow-in port 13 to the flow-out port 14 and a valve 3 is disposed in the hollow section slidingly along the inner face thereof. Means 4 for urging the valve 4 toward the electrode body 2 and a detection circuit 7 to be connected with the first and second electrodes 22, 23 are also provided. The first and second electrodes 22, 23 are exposed to the valve 3 side from the electrode body 2 and a conductive member 32 is disposed on the electrode 2 side of the valve 3. When the first and second electrodes 22, 23 are connected with the conductive member 32, the detecting circuit detects stoppage of flow.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は流体を用いた装置やプラ
ントにおける流体の流れ停止を検出するための装置に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device using a fluid and a device for detecting stoppage of the flow of a fluid in a plant.

【0002】[0002]

【従来の技術】流体機械における従来の流量計測方法は
差圧式,容積式,面積式,流速式に大別される。
2. Description of the Related Art Conventional flow rate measuring methods in fluid machinery are roughly classified into differential pressure type, volumetric type, area type and flow velocity type.

【0003】一般に工業プロセス用や流体機械に於いて
は、機構が非常に簡単で広範囲の流体に適用でき、しか
も比較的安価であり、目視により直接流量を測定できる
面積式流量計や差圧式流量計が多く使用される。
Generally, in industrial processes and fluid machinery, the mechanism is very simple, it can be applied to a wide range of fluids, and it is relatively inexpensive, and the area type flow meter or the differential pressure type flow rate that can directly measure the flow rate by visual observation. Many are used.

【0004】この面積式流量計は鉛直なテーパー管に自
由に上下するフロートを設けたもので、下方から流体を
導き入れると、流れはフロートにより絞られ、流れの後
方に圧力低下を生じる。フロートはこの差圧により上向
きの力を受け上昇し、フロートの有効重量と平衡する位
置で静止する。この場合の流量は流通面積すなわちフロ
ートの位置と一定の関係があり、このフロートの位置を
見て流量を測定する。
In this area type flow meter, a vertical taper pipe is provided with a float that can freely move up and down. When a fluid is introduced from below, the flow is throttled by the float, and a pressure drop occurs behind the flow. The float receives an upward force due to this pressure difference, rises, and stops at a position in equilibrium with the effective weight of the float. The flow rate in this case has a fixed relationship with the flow area, that is, the position of the float, and the flow rate is measured by observing the position of the float.

【0005】また、差圧式流量計は流れの中に絞りを設
けると、絞りの前後に流量の二乗に比例した圧力差が生
じる。その圧力差を測定する事により流量を求める仕組
みである。
Further, in the differential pressure type flow meter, when a throttle is provided in the flow, a pressure difference proportional to the square of the flow rate is generated before and after the throttle. It is a mechanism to obtain the flow rate by measuring the pressure difference.

【0006】前述した2種類の流量計は目視による計測
方法を取る事がほとんどであるが、近年流量による制御
タイミングをとる必要性が増加し、これらの流量計に接
点信号得るための手段を取り付ける例が多くなった。
Most of the above-mentioned two types of flowmeters use a visual measurement method, but in recent years, the necessity of taking control timing according to the flow rate has increased, and a means for obtaining a contact signal is attached to these flowmeters. There are many examples.

【0007】面積式流量計に流量検知手段を取り付けた
一般的な態様を図4に示す。この装置は流路管(10
0)と、その上下端をそれぞれ塞ぐフランジ(10
1),(102)と、流路管(100)内に設けたフロ
ート(104)と、検知部(103)とからなるもので
ある。
FIG. 4 shows a general mode in which a flow rate detecting means is attached to an area type flow meter. This device has a flow tube (10
0) and flanges (10
1) and (102), a float (104) provided in the flow path pipe (100), and a detection unit (103).

【0008】そしてこの流路管(100)の内径は流路
の上流側が小径、下流側が大径となったテーパ状をして
おり、小径側を下に、大径側を上にしてこの流路管(1
00)を立設している。また、前記フロート(104)
には磁石(105)を埋め込んでいる。検知部(10
3)は流路管(100)の外周部近傍の検知位置に設け
た第一の接点(108)及びその下方に設けた第二の接
点(107)と、電源(109)と、検出回路(11
0)とからなり、第一の接点(108)は検知用磁石
(106)を有するとともに上方に付勢されており、第
一の接点(108)が電源(109)の一方の電極に接
続され、第二の接点(107)が検出回路(110)を
介して他方の電極に接続される。尚、フランジ(10
2)は流入口(102a)を有し、フランジ(101)
は流出口(101a)を有する。
The inner diameter of the flow path pipe (100) is tapered such that the upstream side of the flow path has a small diameter and the downstream side has a large diameter. Road pipe (1
00) is erected. Also, the float (104)
A magnet (105) is embedded in the. Detector (10
3) is a first contact (108) provided at a detection position near the outer periphery of the flow path pipe (100) and a second contact (107) provided below the contact, a power supply (109), and a detection circuit ( 11
0), the first contact (108) has a detection magnet (106) and is biased upward, and the first contact (108) is connected to one electrode of the power supply (109). , The second contact (107) is connected to the other electrode via the detection circuit (110). The flange (10
2) has an inlet (102a) and a flange (101)
Has an outlet (101a).

【0009】この装置によれば、まず、流入口(102
a)から流体が流路管(100)内に流入すると、流体
の動圧によってフロート(104)が浮上し、フロート
(104)の重量と動圧との釣り合い位置で停止する。
そして、流体の流量が減少して、フロート(104)が
降下し、自体の磁石(105)の中心が第一の接点(1
08)の検知用磁石(106)の中心よりも下方に位置
すると、磁石(105)の吸引力により第一の接点(1
08)が下方に引張られて移動し第二の接点(107)
に接触する。これにより検知部(103)は導通状態と
なり、フロート(104)が検知位置まで降下したこと
即ち、流量が低下したことが検知される。
According to this apparatus, first, the inlet (102
When the fluid flows into the flow path pipe (100) from a), the float (104) floats due to the dynamic pressure of the fluid and stops at a position where the weight of the float (104) and the dynamic pressure are balanced.
Then, the flow rate of the fluid decreases, the float (104) descends, and the center of the magnet (105) of the float (104) itself becomes the first contact point (1).
08) is located below the center of the detection magnet (106), the first contact (1) is generated by the attractive force of the magnet (105).
08) is pulled downward to move to the second contact point (107).
To contact. As a result, the detection unit (103) becomes conductive, and it is detected that the float (104) has dropped to the detection position, that is, the flow rate has decreased.

【0010】[0010]

【発明が解決しようとする問題点】しかしながら、面積
式流量計においては最大流量をQとした場合に測定でき
る流量の範囲はQからQ/10の間であり、流量がQ/
10以下の場合には正確に測定できないという問題があ
った。即ち、面積式流量計においてQ/10以下の極端
に微少な流量を流すと、フロートとテーパー管の間の隙
間が非常に小さくなり、フロートやテーパー管の加工精
度による影響又は流体に含まれる微量のゴミが前記隙間
に詰まることによる影響を受けて実用上測定誤差が生じ
易いのである。即ち、流れが完全に停止しているのか又
はQ/10以下の微小量が流れているかの検知が不可能
なのである。
However, in the area type flow meter, when the maximum flow rate is Q, the range of flow rate that can be measured is between Q and Q / 10, and the flow rate is Q /
If it is 10 or less, there is a problem that accurate measurement cannot be performed. That is, when an extremely small flow rate of Q / 10 or less is flown in the area type flow meter, the gap between the float and the tapered pipe becomes very small, and the influence due to the processing accuracy of the float or the tapered pipe or the minute amount contained in the fluid. The measurement error is likely to occur in practical use due to the influence of the foreign matter clogging the gap. That is, it is impossible to detect whether the flow is completely stopped or a minute amount of Q / 10 or less is flowing.

【0011】また、差圧式流量計においては、流量の2
乗に比例した差圧を測定するものであるために、微少流
量における測定誤差は面積式流量計よりも大きくなって
更に不都合である。従って通常、差圧式流量計において
は最大流量をQとした場合に、測定できる流量の範囲は
QからQ/5の間である。
Further, in the differential pressure type flow meter, the flow rate of 2
Since the differential pressure proportional to the power is measured, the measurement error at a minute flow rate is larger than that of the area flow meter, which is further inconvenient. Therefore, normally, in the differential pressure type flow meter, when the maximum flow rate is Q, the measurable flow rate range is from Q to Q / 5.

【0012】このような背景の中、流体が流れているか
否かの判断を必要とするプロセスに於いては面積式流量
計や差圧式流量計を用いた検知手段では完全に流体が流
れていないのか、又は微小流量流れているのかの判断が
できないため、そのプロセスに圧力監視装置をとりつけ
た複合判断方法を用いたり、高価な流速式流量計を用い
たりして対応していた。
Against this background, in a process that requires judgment as to whether or not a fluid is flowing, the detection means using the area type flow meter or the differential pressure type flow meter does not completely flow the fluid. Since it is not possible to determine whether the flow rate is small or a minute flow rate is flowing, a complex determination method in which a pressure monitoring device is attached to the process is used, or an expensive flow rate type flow meter is used.

【0013】本発明は以上の事情に鑑みなされたもので
あり、流体の流れ停止を確実に検知し得る装置の提供を
目的とする。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus capable of surely detecting the stop of the flow of fluid.

【0014】[0014]

【課題を解決するための手段】上記目的を達成するため
の本発明は、一方が流入口に、他方が流出口に夫々連通
する中空部を有する筒体と、前記中空部の前記流入口側
に設けられ且つ、第一の電極及び第二の電極を有する電
極体と、前記中空部内に設けられ該中空部内面に沿って
摺動するとともに、前記流入口よりの流体を前記流出口
に導く流通路を備える弁体と、該弁体を前記電極体側に
付勢する付勢手段と、前記第一の電極及び第二の電極に
接続する検出回路とからなる装置であって、前記第一の
電極及び第二の電極を前記電極体から前記弁体側に露出
せしめる一方、前記弁体の前記電極体側に導電性部材を
設けたことを要旨とする。
According to the present invention for achieving the above object, there is provided a tubular body having a hollow portion, one of which communicates with an inflow port and the other of which communicates with an outflow port, and the inflow port side of the hollow space. And an electrode body having a first electrode and a second electrode, which slides along the inner surface of the hollow portion provided in the hollow portion and guides the fluid from the inflow port to the outflow port. An apparatus comprising a valve body having a flow passage, a biasing means for biasing the valve body toward the electrode body, and a detection circuit connected to the first electrode and the second electrode, wherein The gist is that the electrode and the second electrode are exposed from the electrode body to the valve body side, while a conductive member is provided on the valve body side of the valve body.

【0015】以下、本発明の作用について説明する。ま
ず流入口側の流体圧力により受ける作用力が付勢手段に
よる作用力よりも大きくなると弁体は流出口側に移動す
る。これにより電極体と弁体の間に間隙を生じ、流体は
この間隙,弁体の流通路を通って流出口から流出する。
The operation of the present invention will be described below. First, when the acting force received by the fluid pressure on the inlet side becomes larger than the acting force by the biasing means, the valve body moves to the outlet side. As a result, a gap is created between the electrode body and the valve body, and the fluid flows out through the gap and the flow passage of the valve body from the outflow port.

【0016】一方、流入口側の流体圧力により受ける作
用力が付勢手段による作用力よりも小さくなると弁体は
流入口側に移動して電極体と弁体とが密着し、流体の流
通が止まる。これにより第一の電極及び第二の電極が弁
体の導電性部材と接触して導通状態となり、検出回路が
これを検知する。以上により流体の流通停止を検出する
ことができる。
On the other hand, when the acting force received by the fluid pressure on the inlet side becomes smaller than the acting force by the urging means, the valve body moves to the inlet side and the electrode body and the valve body come into close contact with each other, so that the fluid flows. Stop. As a result, the first electrode and the second electrode come into contact with the conductive member of the valve body and become conductive, and the detection circuit detects this. As described above, it is possible to detect the stoppage of the flow of the fluid.

【0017】[0017]

【実施例】以下、本発明の実施例について添付図面に基
づき説明する。図1は本発明の一実施例装置を示す断面
図である。同図に示すように、実施例装置は一方が閉塞
され他方が開口される筒体(1)と、この筒体(1)内
部に設けられる電極体(2),弁体(3),付勢手段た
るバネ(4)と、前記筒体(1)の開口部を閉塞するよ
うに設けられる蓋体(5)と、前記電極体(2)に接続
する電源(6)及び検出回路(7)とからなる装置であ
る。
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view showing an apparatus according to an embodiment of the present invention. As shown in the figure, the apparatus of the embodiment has a tubular body (1) having one closed and the other open, an electrode body (2), a valve body (3), and an electrode body (2) provided inside the tubular body (1). A spring (4) as a biasing means, a lid (5) provided so as to close the opening of the cylindrical body (1), a power source (6) connected to the electrode body (2), and a detection circuit (7). ) Is a device consisting of.

【0018】前記電極体(2)は図2に示すように、絶
縁体で構成される肉厚円筒体(24)内に第一の電極部
(22)及び第二の電極部(23)を輪環状に設けたも
のである。そして、これら第一の電極部(22)及び第
二の電極部(23)の一部を前記肉厚円筒体(24)の
片側に同心輪となるように露出せしめている。そして、
図1に示すように、この電極体(2)の第一及び第二の
電極部(22),(23)が露出する側を前記筒体
(1)の開口側にしてこれを前記筒体(1)内に設ける
とともに、前記第一の電極部(22)を電源(6)に、
前記第二の電極部(23)を検出回路(7)に夫々接続
している。また、筒体(1)の閉塞側に流入口(13)
を設けており、また、これに対応する貫通孔(25)を
前記電極体(2)に設けている。
As shown in FIG. 2, the electrode body (2) has a first electrode portion (22) and a second electrode portion (23) in a thick cylindrical body (24) made of an insulator. It is provided in a ring shape. Then, parts of the first electrode portion (22) and the second electrode portion (23) are exposed on one side of the thick-walled cylindrical body (24) so as to form a concentric ring. And
As shown in FIG. 1, the side where the first and second electrode portions (22) and (23) of the electrode body (2) are exposed is defined as the opening side of the cylinder body (1), In addition to being provided in (1), the first electrode portion (22) is used as a power source (6),
The second electrode portion (23) is connected to the detection circuit (7), respectively. In addition, the inlet (13) is provided on the closed side of the tubular body (1).
And a through hole (25) corresponding thereto is provided in the electrode body (2).

【0019】前記弁体(3)は円柱形状をした非導電性
部材(31)の一方の端面に導電性部材(32)を設け
たものである。そして、この導電性部材(32)と前記
電極体(2)とを対向せしめた状態で弁体(3)を前記
筒体(1)内の開口側に嵌挿しており、弁体(3)は筒
体(1)内を矢示A−B方向に摺動する。また、弁体
(3)は他方の端面に前記バネ(4)と係合する係合部
(34)を備えており、また、一方の端面から他方の端
面に貫通し、前記筒体(1)内の閉塞側と開口側とを連
通せしめる流通路(33)を備えている。
The valve body (3) is a columnar non-conductive member (31) provided with a conductive member (32) on one end face thereof. Then, the valve body (3) is fitted in the opening side in the tubular body (1) with the conductive member (32) and the electrode body (2) being opposed to each other, and the valve body (3) is inserted. Slides in the cylindrical body (1) in the direction of arrow AB. Further, the valve body (3) is provided with an engaging portion (34) which engages with the spring (4) on the other end face, and penetrates from one end face to the other end face to form the tubular body (1). ) Has a flow passage (33) for connecting the closed side and the open side.

【0020】前記蓋体(5)は円柱形状をした部材であ
り、中心部に流出口(14)を備えるもので、前記筒体
(1)の開口部に設けられてこれを閉塞する。また、こ
の蓋体(5)の筒体(1)への取付側端面にはバネ
(4)が係合する係合部(51)が設けられている。
The lid (5) is a member having a columnar shape, and has an outlet (14) at the center thereof, which is provided at the opening of the cylinder (1) and closes it. Further, an engaging portion (51) with which the spring (4) is engaged is provided on the end surface of the lid body (5) on the side where it is attached to the tubular body (1).

【0021】そして、前記バネ(4)は一方端が弁体
(3)の係合部(34)に係合し、他方端が蓋体(5)
の係合部(51)に係合した状態で筒体(1)内に設け
られ、弁体(3)を矢示A方向に付勢している。
One end of the spring (4) is engaged with the engaging portion (34) of the valve body (3) and the other end thereof is the lid body (5).
It is provided in the cylindrical body (1) in a state of being engaged with the engaging portion (51) of (1) and biases the valve body (3) in the direction of arrow A.

【0022】次に、この装置の作動について説明する。
尚、この装置を適用し得る流体は非電導性の流体、もし
くは電気抵抗が十分に大きい流体である、例えば空気,
窒素ガス,酸素ガス,ヘリウム,アルゴン,蒸気等の気
体や水,アルコール等である。
Next, the operation of this device will be described.
The fluid to which this device can be applied is a non-conductive fluid or a fluid having a sufficiently large electric resistance, such as air,
Examples of the gas include nitrogen gas, oxygen gas, helium, argon and steam, water, alcohol and the like.

【0023】まず、流体が本装置内を流れていない場合
には、弁体(3)はバネ(4)により矢示A方向に付勢
され、弁体(3)の導電性部材(32)と電極体(2)
の第一の電極部(22)及び第二の電極部(23)とが
接触している。これにより、第一の電極部(22)と第
二の電極部(23)とが導通状態となり、検出回路
(7)が電極体(2)と弁体(3)との接触状態を検知
する。
First, when the fluid is not flowing in the device, the valve body (3) is biased by the spring (4) in the direction of the arrow A, and the conductive member (32) of the valve body (3). And electrode body (2)
The first electrode portion (22) and the second electrode portion (23) of the above are in contact with each other. As a result, the first electrode portion (22) and the second electrode portion (23) are brought into conduction, and the detection circuit (7) detects the contact state between the electrode body (2) and the valve body (3). .

【0024】つづいて流体が筒体(1)の流入口(1
3)、電極体(2)の貫通孔(24)を通って装置内に
流入すると、流体に与えられたエネルギー(例えば圧
力)が弁体(3)を電極体(2)に付勢するバネ(4)
の付勢力よりも大きい場合には、弁体(3)が矢示B方
向へ移動し、電極体(2)と弁体(3)を離隔して、第
一の電極部(22)と第二の電極部(23)との導通状
態が切れ、検知回路(7)がこれを検知する。これによ
り、流体は弁体(3)の流通路(33)、流出口(1
4)を通って装置外へ流れ出る。
Then, the fluid is introduced into the inlet (1) of the cylindrical body (1).
3), a spring that urges the valve body (3) toward the electrode body (2) by the energy (for example, pressure) applied to the fluid when flowing into the device through the through hole (24) of the electrode body (2). (4)
When the force is larger than the urging force of the valve body (3), the valve body (3) moves in the direction of the arrow B to separate the electrode body (2) from the valve body (3), and the first electrode portion (22) and The electrical connection with the second electrode portion (23) is cut off, and the detection circuit (7) detects this. As a result, the fluid flows through the flow passage (33) and the outlet (1) of the valve body (3).
It flows out of the device through 4).

【0025】しかして、この装置によれば完全に流体の
流れが停止したことを検出することができるとともに、
僅かな流体が装置内を流通した場合でもこれを検出する
ことができる。即ち、この装置によれば流体が流れてい
るか否かを正確に検出することができる。
Therefore, according to this device, it is possible to detect that the flow of the fluid is completely stopped, and
Even if a small amount of fluid flows through the device, this can be detected. That is, according to this device, it is possible to accurately detect whether or not the fluid is flowing.

【0026】尚、前記第一の電極部(22),第二の電
極部(23)及び導電性部材(32)には鉄,銅等の金
属も適用し得るが、相互接触時の気密性を確保するため
には導電性ゴム等の通電性及び弾性を備えた材料を用い
るのが好ましい。
Metals such as iron and copper can be applied to the first electrode portion (22), the second electrode portion (23) and the conductive member (32), but airtightness at the time of mutual contact In order to secure the above, it is preferable to use a material having electric conductivity and elasticity such as conductive rubber.

【0027】また、前記電極体(2)を図3に示す構成
としてもよい。即ち、電極体(2)の肉厚円筒体(2
4)の一方端面にOリング(26)を設け、更に、Oリ
ング(26)より中心側の前記端面に第一の電極部(2
2)を露出せしめ、Oリング(26)より外側の同端面
に第二の電極部(23)を露出せしめたものである。か
かる構成によっても、第一の電極部(22)及び第二の
電極部(23)が弁体(3)の導電性部材(32)と接
触することにより第一の電極部(22)及び第二の電極
部(23)が導通状態となり、接触状態を検出すること
ができる。また、Oリング(26)を設けていることか
ら、接触時の電極体(2)と弁体(3)との間の気密性
を確保することができる。
The electrode body (2) may have the structure shown in FIG. That is, the thick cylindrical body (2
4) An O-ring (26) is provided on one end face, and the first electrode part (2) is further provided on the end face closer to the center than the O-ring (26).
2) is exposed, and the second electrode portion (23) is exposed on the same end surface outside the O-ring (26). With such a configuration as well, the first electrode portion (22) and the second electrode portion (23) come into contact with the conductive member (32) of the valve body (3), so that the first electrode portion (22) and the second electrode portion (23) The second electrode portion (23) becomes conductive, and the contact state can be detected. Further, since the O-ring (26) is provided, the airtightness between the electrode body (2) and the valve body (3) at the time of contact can be secured.

【0028】[0028]

【発明の効果】従来の方法,装置によると流体が微少量
流れているのか、流れが完全に停止しているのかの判断
が困難であったが、本発明装置によれば流体の流れが完
全に停止した状態を確実に検知することが可能となっ
た。
According to the conventional method and device, it is difficult to judge whether the fluid is flowing in a very small amount or the flow is completely stopped. It has become possible to reliably detect the stopped state.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例に係る装置を示す断面図であ
る。
FIG. 1 is a sectional view showing an apparatus according to an embodiment of the present invention.

【図2】実施装置の電極体を一部断面で示す斜視図であ
る。
FIG. 2 is a perspective view showing a partial cross section of an electrode body of an embodying apparatus.

【図3】電極体の変形例を一部断面で示す斜視図であ
る。
FIG. 3 is a perspective view showing a modified example of an electrode body in a partial cross section.

【図4】従来の面積式流量計の一例を示す断面図であ
る。
FIG. 4 is a cross-sectional view showing an example of a conventional area flow meter.

【符号の説明】[Explanation of symbols]

1 筒体 2 電極体 3 弁体 4 バネ 5 蓋体 6 電源 7 検出回路 13 流入口 14 流出口 22 第一の電極部 23 第二の電極部 1 Cylindrical Body 2 Electrode Body 3 Valve Body 4 Spring 5 Lid Body 6 Power Supply 7 Detection Circuit 13 Inlet Port 14 Outlet Port 22 First Electrode Part 23 Second Electrode Part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 一方が流入口に、他方が流出口に夫々連
通する中空部を有する筒体と、前記中空部の前記流入口
側に設けられ且つ、第一の電極及び第二の電極を有する
電極体と、前記中空部内に設けられ該中空部内面に沿っ
て摺動するとともに、前記流入口よりの流体を前記流出
口に導く流通路を備える弁体と、該弁体を前記電極体側
に付勢する付勢手段と、前記第一の電極及び第二の電極
に接続する検出回路とからなる装置であって、前記第一
の電極及び第二の電極を前記電極体から前記弁体側に露
出せしめる一方、前記弁体の前記電極体側に導電性部材
を設けたことを特徴とする流れ停止検出装置。
1. A cylindrical body having a hollow portion, one of which communicates with an inflow port and the other of which communicates with an outflow port, and a first electrode and a second electrode which are provided on the inflow port side of the hollow portion. An electrode body having the valve body, a valve body provided in the hollow portion and sliding along the inner surface of the hollow portion, and having a flow passage for guiding the fluid from the inlet to the outlet, and the valve body on the electrode body side. A device comprising an urging means for urging the first electrode and a detection circuit connected to the first electrode and the second electrode, wherein the first electrode and the second electrode are connected from the electrode body to the valve body side. The flow stop detection device is characterized in that a conductive member is provided on the valve body side of the valve body while being exposed.
JP17625993A 1993-06-22 1993-06-22 Flow stop detector Pending JPH0712838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17625993A JPH0712838A (en) 1993-06-22 1993-06-22 Flow stop detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17625993A JPH0712838A (en) 1993-06-22 1993-06-22 Flow stop detector

Publications (1)

Publication Number Publication Date
JPH0712838A true JPH0712838A (en) 1995-01-17

Family

ID=16010445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17625993A Pending JPH0712838A (en) 1993-06-22 1993-06-22 Flow stop detector

Country Status (1)

Country Link
JP (1) JPH0712838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004049924A1 (en) * 2000-02-17 2004-06-17 Olympus Corporation Apparatus for cleaning/sterilizing endoscope and method for cleaning/sterilizing endoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004049924A1 (en) * 2000-02-17 2004-06-17 Olympus Corporation Apparatus for cleaning/sterilizing endoscope and method for cleaning/sterilizing endoscope

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