JPS6035621B2 - concentration meter - Google Patents
concentration meterInfo
- Publication number
- JPS6035621B2 JPS6035621B2 JP20587581A JP20587581A JPS6035621B2 JP S6035621 B2 JPS6035621 B2 JP S6035621B2 JP 20587581 A JP20587581 A JP 20587581A JP 20587581 A JP20587581 A JP 20587581A JP S6035621 B2 JPS6035621 B2 JP S6035621B2
- Authority
- JP
- Japan
- Prior art keywords
- measured
- liquid
- concentration
- defoaming chamber
- pressurized
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Description
【発明の詳細な説明】
本発明は例えば汚泥液等の濃度を測定する濃度計に係り
、特に被測定液の動きを利用して被測定液を加圧消泡室
に流入密封し被測定液の濃度を測定する濃度計に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a concentration meter for measuring the concentration of, for example, sludge liquid, and in particular, the present invention relates to a concentration meter that measures the concentration of liquid sludge, etc., and in particular utilizes the movement of the liquid to be measured to flow into a pressurized defoaming chamber and seal the liquid to be measured. This invention relates to a densitometer that measures the concentration of .
従来、この種の濃度計にあっては、第１図に示すように
被測定液の流通する配管１にバイパス管２を配設すると
ともに、このバイパス管２の途中にそれぞれバルブ３，
４を介して濃度測定部５を設けた構成である。Conventionally, in this type of concentration meter, as shown in FIG. 1, a bypass pipe 2 is disposed in a pipe 1 through which a liquid to be measured flows, and valves 3 and 3 are installed in the middle of this bypass pipe 2, respectively.
This is a configuration in which a concentration measuring section 5 is provided via 4.
この濃度測定部５は、図示していないが内部に例えば超
音波の送波器および受波器を内蔵し、被測定液による超
音波の減衰量を受波器で受波して濃度を測定している。
ところで、このような濃度計は、被測定液中の気泡の影
響により正確に濃度を測定できない為、加圧用パイプ６
を設け、ポンプＰで気体を送入して気泡を消泡するよう
にしている。Although not shown, the concentration measurement unit 5 has an ultrasonic wave transmitter and a wave receiver built therein, and measures the concentration by receiving the amount of attenuation of the ultrasonic waves caused by the liquid to be measured with the wave receiver. are doing.
By the way, such a concentration meter cannot accurately measure the concentration due to the influence of air bubbles in the liquid to be measured, so the pressurizing pipe 6
A pump P is provided to supply gas to eliminate bubbles.
このため、実際に被測定液の濃度を測定する場合、両バ
ルブ３，４を開けて濃度測定部５に被測定液を入れた後
、両バルブ３，４を閉塞し加圧を加えて気泡を消去し、
その後、波送器から超音波を発振してその超音波の減衰
量を受波器で受波し被測定液の濃度を測定している。し
かし、以上のような濃度計にあっては、被測定液の導入
側及び導出側に設けた両バルブ３，４を閉塞しなければ
ならないので操作が煩雑であり、また何れか一方のバル
ブ３又は４を閉塞し忘れると正確な濃度測定ができない
。Therefore, when actually measuring the concentration of the liquid to be measured, after opening both valves 3 and 4 and introducing the liquid to be measured into the concentration measurement section 5, both valves 3 and 4 are closed and pressure is applied to form bubbles. Erase the
Thereafter, the wave transmitter emits ultrasonic waves, and the attenuation of the ultrasonic waves is received by the wave receiver to measure the concentration of the liquid to be measured. However, in the concentration meter described above, both the valves 3 and 4 provided on the inlet side and the outlet side of the liquid to be measured must be closed, making the operation complicated. Or, if you forget to close 4, accurate concentration measurement will not be possible.
さらに、一方のバルブ４を他方のバルブ３より遅く閉じ
ると、両バルブ３，４間には被測定液層と空気層とがで
きて適切な加圧状態が得られないばかりか設置状態によ
っては超音波経路に空気層が介在し測定誤差となるなど
の欠点を有する。そこで、以上のような不都合を回避す
るために、２個のバルブ３，４を設けることなく、配管
と加圧消泡室との間にバルブを設け、加圧消泡室への被
測定液の導入をポンプで減圧してバルブを引き離し被測
定液を加圧沼泡室に入れて気泡を消泡し被測定液の濃度
を測定している。Furthermore, if one valve 4 is closed later than the other valve 3, a layer of liquid to be measured and an air layer will be created between the two valves 3 and 4, and not only will an appropriate pressurized state not be obtained, but depending on the installation state, This method has drawbacks such as an air layer intervening in the ultrasonic path, resulting in measurement errors. Therefore, in order to avoid the above-mentioned inconvenience, a valve is provided between the piping and the pressurized defoaming chamber, instead of providing the two valves 3 and 4, to prevent the liquid to be measured from entering the pressurized defoaming chamber. The pressure is reduced using a pump, the valve is pulled apart, the liquid to be measured is placed in a pressurized bubble chamber, the bubbles are extinguished, and the concentration of the liquid to be measured is measured.
もう１つの例は、流路と濃度測定部を持つ加圧消泡室と
を有するボールバルブを配管側部に設け、通常被測定液
の一部をボールバルブの流離を通って流し、濃度測定時
はそのボールバルブを手動で回動して配管を閉塞すると
ともにポールバルブの縦路に存在する被測定液に加圧を
加えて消泡した後に濃度測定部で濃度を測定する構成で
ある。しかし、上述する２つの濃度計は、被測定液の導
入にあたってポンプ等を用いて被測定液を加圧消泡室に
入れる点で他動的であり、特に後者のものはバルブが複
雑な構成をとらざるをえなく製造面で多少問題がある。Another example is to install a ball valve on the side of the pipe that has a flow path and a pressurized defoaming chamber with a concentration measuring section, and normally a part of the liquid to be measured flows through the ball valve and measures the concentration. In this case, the ball valve is manually rotated to close the piping, and the liquid to be measured existing in the vertical path of the pole valve is pressurized to eliminate bubbles, and then the concentration is measured in the concentration measuring section. However, the two concentration meters mentioned above are passive in that they use a pump etc. to introduce the liquid to be measured into a pressurized defoaming chamber, and the latter one in particular has a complicated valve structure. There are some problems with manufacturing.
本発明は上記実情にかんがみてなされたもので、配管の
側壁に被測定液を自由に流れるように濃度測定手段を持
つ加圧消泡室を設けるとともに、配管内を流れる被測定
液の流向を変えて積極的に加圧消泡室に導入して濃度を
測定する濃度計を提供するものである。The present invention was made in view of the above circumstances, and includes a pressurized defoaming chamber having a concentration measuring means on the side wall of the piping so that the liquid to be measured flows freely, and also controls the flow direction of the liquid to be measured flowing inside the piping. Instead, the present invention provides a densitometer that measures the concentration by actively introducing the foam into a pressurized defoaming chamber.
以下、本発明の一実施例について第２図を参照して説明
する。An embodiment of the present invention will be described below with reference to FIG.
この濃度計は、被測定液の流通する配管１１の−側部に
接して加圧消泡室１２を設けるとともに、これらの配管
１１と加圧消泡室１２との間には配管１１内を流れる被
測定液の流向を変更する流向変更機能を持った弁体１３
が設けられている。この弁体１３は加圧消泡室１２内に
流入された被測定液を密封するものであるが、弁体１３
として例えばバタフライ弁を用いれば、流向変更機能と
弁機能とを兼用させることができる。この加圧消泡室１
２には例えば空気や窒素等の気体を噴射して加圧消泡室
１２内の被測定液に含む気泡を消泡する加圧用パイプ１
４と、超音波を送受波する送受波器をもった濃度測定器
１５とが設けられている。次に、以上のように構成され
た濃度計の作用を説明する。This concentration meter is provided with a pressurized defoaming chamber 12 in contact with the negative side of a pipe 11 through which the liquid to be measured flows, and between the piping 11 and the pressurized defoaming chamber 12 there is a section inside the pipe 11. A valve body 13 having a flow direction changing function that changes the flow direction of the flowing liquid to be measured.
is provided. This valve body 13 is for sealing the liquid to be measured that has flowed into the pressurized defoaming chamber 12.
For example, if a butterfly valve is used, it can serve both the flow direction changing function and the valve function. This pressurized defoaming chamber 1
2 is a pressurizing pipe 1 for defoaming bubbles contained in the liquid to be measured in the pressurizing defoaming chamber 12 by injecting gas such as air or nitrogen.
4, and a concentration measuring device 15 having a transducer for transmitting and receiving ultrasonic waves. Next, the operation of the densitometer configured as described above will be explained.
先ず、弁閉状態にある弁体１３を図示のように回転させ
て弁開すると、配管１ １と加圧消泡室１２との間に流
路が形成するとともに、その弁体１３の弁開角度に応じ
て被測定液の流向が変更され被測定液が積極的に加圧消
泡室１２に導入される。なお、弁体１３の位置によって
被測定液の動きは勤圧になったり、吸圧になったりする
。ここで既に加圧消泡室１２に封入されていた被測定液
は液流入側と反対側の流路を通って配管１１側へ排出さ
れていく。このようにして新しい被測定液が加圧消泡室
１２に完全に充満された時間を見計らって弁体１３を閉
塞すると、被測定液が加圧消泡室１２内に完全に密閉さ
れる。被測定液を密閉した後、加圧用パイプ１４より圧
力を加えて被測定液に含まれる気泡を消泡し、濃度測定
器１５で濃度を測定する。濃度測定後は、同様に弁体１
３を回転させて弁関し、そのままの状態又は加圧用パイ
プ１４を用いて加圧して被測定液を排出し、新しい被測
定液を配管１１側から加圧消泡室１２へ取込む。即ち、
加圧消泡室１２内で被測定液の置換が行なわれる。なお
、上記実施例では、弁体１３としてバタフライ弁を用い
て流向変更機能と弁機能とを兼用させたが、これらを別
々に設けてもよいものである。First, when the valve body 13 in the closed state is rotated as shown in the figure to open the valve, a flow path is formed between the piping 11 and the pressurized defoaming chamber 12, and the valve body 13 is opened. The flow direction of the liquid to be measured is changed according to the angle, and the liquid to be measured is actively introduced into the pressurized defoaming chamber 12. Note that, depending on the position of the valve body 13, the movement of the liquid to be measured may be under pressure or under pressure. Here, the liquid to be measured that has already been sealed in the pressurized defoaming chamber 12 is discharged to the piping 11 side through the flow path on the opposite side to the liquid inflow side. In this manner, when the valve body 13 is closed at a time when the pressurized defoaming chamber 12 is completely filled with a new liquid to be measured, the pressurized defoaming chamber 12 is completely sealed with the liquid to be measured. After the liquid to be measured is sealed, pressure is applied from the pressurizing pipe 14 to eliminate bubbles contained in the liquid to be measured, and the concentration is measured by the concentration measuring device 15. After measuring the concentration, check the valve body 1 in the same way.
3 is rotated to engage the valve, the liquid to be measured is discharged as it is or pressurized using the pressurizing pipe 14, and a new liquid to be measured is taken into the pressurized defoaming chamber 12 from the piping 11 side. That is,
The liquid to be measured is replaced in the pressurized defoaming chamber 12 . In the above embodiment, a butterfly valve is used as the valve body 13 to serve both the flow direction changing function and the valve function, but these may be provided separately.
例えば配管１１の曲り部分を流向変更体とし、その曲り
部分の外側に位置する配管１１の側壁に弁体１３を介し
て加圧消泡室１２を設けてもよいものである。この場合
には、配管１１の曲り部分が被測定液の流向を変更する
役割を果たすことになる。また、水平配管１１の一側壁
を内側に突出させて流向変更体とし、この流向変更体と
対面する配管１１側壁に弁体１３を介して加圧消泡室を
設ける構成でもよいことは言うまでもない。その他、本
発明はその要旨を逸脱しない範囲で種々変形して実施で
きる。以上詳記したように本発明によれば、配管の側壁
に接して被測定液が自由に流入できるように加圧消泡室
を設けるとともに、流向を変更させて加圧消泡室へ被測
定液が積極的に流入するようにしたので、加圧消泡室に
自動的かつ簡単に被測定液を入れることができる。For example, the curved portion of the pipe 11 may be used as a flow direction changing body, and the pressurized defoaming chamber 12 may be provided via the valve body 13 on the side wall of the pipe 11 located outside the curved portion. In this case, the bent portion of the pipe 11 plays the role of changing the flow direction of the liquid to be measured. It goes without saying that one side wall of the horizontal pipe 11 may be made to protrude inward to serve as a flow direction changing body, and a pressurized defoaming chamber may be provided via the valve body 13 on the side wall of the pipe 11 facing this flow direction changing body. . In addition, the present invention can be implemented with various modifications without departing from the gist thereof. As described in detail above, according to the present invention, the pressurized defoaming chamber is provided so that the liquid to be measured can freely flow in contact with the side wall of the piping, and the flow direction is changed to allow the fluid to be measured to flow into the pressurized defoaming chamber. Since the liquid is configured to actively flow in, the liquid to be measured can be automatically and easily introduced into the pressurized defoaming chamber.
従って、従来のバイパス管を設けた濃度計のように、両
弁の操作の時間的ずれによって空気層ができたりするこ
とがなく、またポンプ等で他動的に被測定液を加圧消泡
室に入れるという操作をとる必要がない。つまり、本濃
度計は被測定液の動きを利用して自然と被測定液を加圧
消泡室に入れることができる。このことは操作を簡単化
できるだけでなく、濃度計全体をコンパクトに実現でき
る。Therefore, unlike conventional concentration meters equipped with bypass pipes, there is no air layer created due to the time lag in the operation of both valves, and the liquid to be measured is passively pressurized and defoamed using a pump, etc. There is no need to take steps to enter the room. In other words, this densitometer can naturally introduce the liquid to be measured into the pressurized defoaming chamber by utilizing the movement of the liquid to be measured. This not only simplifies the operation, but also makes the entire densitometer compact.
第１図は従来の濃度計の構成図、第２図は本発明に係る
濃度計の一実施例を示す一部断面図である。
１１・・…・配管、１２…・・・加圧消泡室、１３・・
・・・・弁体、１４・・・・・・加圧用パイプ、１５・
・・・・了膿度測定器。
第１図
第２図FIG. 1 is a block diagram of a conventional densitometer, and FIG. 2 is a partial sectional view showing an embodiment of the densitometer according to the present invention. 11... Piping, 12... Pressurized defoaming chamber, 13...
... Valve body, 14 ... Pressure pipe, 15.
... Purity measuring device. Figure 1 Figure 2
Claims (1)
由に流入するように設けた加圧消泡室と、前記配管内の
被測定流体を前記加圧消泡室へ取込み助長するために被
測定流体の流向を変更する流向変更手段と、前記加圧消
泡室に取込んだ被測定流体を密封する弁体と、前記加圧
消泡室内の被測定流体中の気泡を消泡する圧力印加手段
と、この手段によつて消泡された被測定流体の濃度を測
定する濃度測定器とを具備したことを特徴とする濃度計
。 ２ 弁体として、バタフライ弁を用いたことを特徴とす
る特許請求の範囲第１項記載の濃度計。 ３ バタフライ弁は、流向変更と弁機能とを兼用するよ
うにした特許請求の範囲第１項または第２項の何れか１
つに記載の濃度計。[Scope of Claims] 1. A pressurized defoaming chamber provided so that the measured fluid freely flows into a side wall of a pipe through which the measured fluid flows; a flow direction changing means for changing the flow direction of the fluid to be measured in order to promote uptake of the fluid to be measured; a valve body for sealing the fluid to be measured taken into the pressurized defoaming chamber; 1. A concentration meter comprising: a pressure applying means for defoaming bubbles; and a concentration measuring device for measuring the concentration of a fluid to be measured whose bubbles have been defoamed by the means. 2. The concentration meter according to claim 1, characterized in that a butterfly valve is used as the valve body. 3. The butterfly valve has both the function of changing the flow direction and the function of the valve according to claim 1 or 2.
Densitometer described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20587581A JPS6035621B2 (en) | 1981-12-19 | 1981-12-19 | concentration meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20587581A JPS6035621B2 (en) | 1981-12-19 | 1981-12-19 | concentration meter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11973779A Division JPS6035029B2 (en) | 1979-09-18 | 1979-09-18 | concentration meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57141552A JPS57141552A (en) | 1982-09-01 |
| JPS6035621B2 true JPS6035621B2 (en) | 1985-08-15 |
Family
ID=16514170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20587581A Expired JPS6035621B2 (en) | 1981-12-19 | 1981-12-19 | concentration meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035621B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6776870B2 (en) * | 2016-12-16 | 2020-10-28 | 住友金属鉱山株式会社 | Flow liquid characteristic measuring device and characteristic measuring method |
-
1981
- 1981-12-19 JP JP20587581A patent/JPS6035621B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57141552A (en) | 1982-09-01 |
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