JPS6017721Y2 - Calibration device for volumetric pressure gauge - Google Patents

Calibration device for volumetric pressure gauge

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Publication number
JPS6017721Y2
JPS6017721Y2 JP6754179U JP6754179U JPS6017721Y2 JP S6017721 Y2 JPS6017721 Y2 JP S6017721Y2 JP 6754179 U JP6754179 U JP 6754179U JP 6754179 U JP6754179 U JP 6754179U JP S6017721 Y2 JPS6017721 Y2 JP S6017721Y2
Authority
JP
Japan
Prior art keywords
pressure
water
standard
gauge
oil
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
Application number
JP6754179U
Other languages
Japanese (ja)
Other versions
JPS55167114U (en
Inventor
孝雄 荒木
宝主 有馬
和夫 井上
Original Assignee
川崎重工業株式会社
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Filing date
Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to JP6754179U priority Critical patent/JPS6017721Y2/en
Publication of JPS55167114U publication Critical patent/JPS55167114U/ja
Application granted granted Critical
Publication of JPS6017721Y2 publication Critical patent/JPS6017721Y2/en
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は、潜水艦用のベルマウス型耐振深度計のように
、その内容積の比較的大きな容積型圧力計の校正装置に
関するものである。
[Detailed Description of the Invention] The present invention relates to a calibration device for a positive displacement pressure gauge having a relatively large internal volume, such as a bellmouth type vibration-proof depth gauge for submarines.

潜水艦用耐振深度計は、水圧によって変化する気体容積
から圧力を計測する容積型圧力計で、艦体を包囲する海
水の水圧から間接的に潜水深度を測定するものであり、
その目盛は水圧に相当する深度をきざんである。
Vibration-proof depth gauges for submarines are volumetric pressure gauges that measure pressure from the gas volume that changes with water pressure, and indirectly measure diving depth from the water pressure of the seawater surrounding the ship's hull.
The scale is divided into depths corresponding to water pressure.

この深度の変化による圧力の変化は、水頭にともなうも
ので、非常に小さく、このため、内容積の大きな高感度
の圧力計としてベルマウス型の圧力計が一般に使用され
ている。
This change in pressure due to a change in depth is accompanied by the water head and is very small, so a bellmouth type pressure gauge is generally used as a high-sensitivity pressure gauge with a large internal volume.

この耐振深度計に目盛を付し、また、付した目盛の示度
検査を行う場合、従来は、比較校正する圧力に精度を要
するために、深度計の受圧部に通常の基準重錘型の圧力
計試験器を接続し、所定圧力の試験油を深度計に送入し
て校正をしていた。
When a scale is attached to this vibration-proof depth gauge and the reading of the attached scale is inspected, conventionally, because the pressure required for comparative calibration requires accuracy, a standard weight type is used in the pressure receiving part of the depth gauge. A pressure gauge tester was connected and test oil at a predetermined pressure was sent into the depth gauge for calibration.

しかし、上記深度計は元来、海水圧を測定するもので、
直接海水を流入させるため、試験油と海水の物理的性質
の相違に基づく校正の誤差が予想される。
However, the depth gauges mentioned above were originally designed to measure seawater pressure.
Since seawater is directly injected, calibration errors are expected due to differences in the physical properties of the test oil and seawater.

また、校正後、深度計受圧部の内面に送入した試験油の
油膜が残留し、内容積の変化をもたらす結果、校正時の
再現性を損なうこともあり、校正を行うに際しては、長
時間放置を繰り返すために、作業性、作業能率を悪くし
ている。
In addition, after calibration, an oil film from the test oil sent to the inner surface of the depth gauge pressure-receiving part remains, causing a change in the internal volume, which may impair reproducibility during calibration. Due to repeated neglect, workability and efficiency are impaired.

これに対し、実用新案登録第351597号明細書や昭
和1rR−実用新案出願公告第13707号公報に記載
されている如く、ブルドン管圧力計の試験装置において
、圧力計に水を送給し、この水を介して試験油圧を圧力
計に伝えるようにしたものである。
On the other hand, as described in Utility Model Registration No. 351597 and Showa 1rR-Utility Model Application Publication No. 13707, in a testing device for a Bourdon tube pressure gauge, water is supplied to the pressure gauge, and this The test hydraulic pressure is transmitted to the pressure gauge via water.

しかし、これらのものは、水圧が当初は低く、試験油を
加圧して水圧を高めていくことから、容積型圧力計に適
用した場合、加圧途中で油水の区画界面が大きく変動し
て油が水に混入し易く、圧力計の試験、つまり校正を数
回行なうと油が圧力計内部にまで達し、校正精度が低下
する憾みがある。
However, with these devices, the water pressure is initially low and the water pressure is increased by pressurizing the test oil, so when applied to a positive displacement pressure gauge, the oil-water compartment interface changes significantly during pressurization, causing the oil to become oily. It is easy for the oil to get mixed into the water, and if the pressure gauge is tested or calibrated several times, the oil will reach the inside of the pressure gauge, reducing the calibration accuracy.

さらに、深度計のベルマウス型受圧部の内容積は圧力計
試験器の加圧シリンダの容積に比して著しく大きいため
、所定の圧力にまで試験油の圧力を上昇させるには、深
度計のベルマウス型空所に繰り返し試験油ないし水を供
給する必要性が生じ、このために作用時間が長時間とな
るとともに、作業が極めて煩雑であった。
Furthermore, the internal volume of the depth gauge's bellmouth-type pressure receiving part is significantly larger than the volume of the pressurizing cylinder of the pressure gauge tester. It became necessary to repeatedly supply test oil or water to the bellmouth-shaped cavity, which resulted in a long operating time and extremely complicated work.

本考案は、かかる点に鑑みてなされたものであって、第
1図に示すように、潜水艦用ベルマウス型耐振深度計等
の容積型圧力計2の校正装置1は、容積型圧力計2を校
正して目盛をきざみ、又その目盛の示度検査などを行う
ものであって、標準圧力源3と圧力水供給手段4が圧力
伝達器5を介して接続されており、圧力伝達器5は圧力
水供給手段4から送給される圧力水と標準圧力源3から
送給される標準圧力油とが区画されて受容されていると
ともに、区画界面を通じて相互に圧力が伝達されるもの
であり、前記圧力水供給手段4が容積型圧力計2に接続
され、標準圧力油と同圧の標準圧力水を容積型圧力計2
に供給するものである。
The present invention has been made in view of the above points, and as shown in FIG. The standard pressure source 3 and pressure water supply means 4 are connected via a pressure transmitter 5, and the pressure transmitter 5 The pressure water supplied from the pressure water supply means 4 and the standard pressure oil supplied from the standard pressure source 3 are compartmented and received, and the pressure is mutually transmitted through the compartment interface. , the pressure water supply means 4 is connected to the displacement type pressure gauge 2, and supplies standard pressure water of the same pressure as standard pressure oil to the displacement type pressure gauge 2.
It is intended to supply

上記標準圧力源3には、基準重錘型の圧力計試験機と同
様の、鉛直に設けたシリンダ6内に上方から嵌着された
ラム7上に分銅8を載荷し、加圧シリンダ9で圧力油を
発生するようにした標準圧力発生機構を採用し、圧力油
に加えた標準圧力と、圧力水供給手段4における水圧ポ
ンプ10により容積型圧力計2に送入する圧力水の水圧
とを、圧力伝達器5を介して平衡せしめ、標準圧力に設
定された圧力水により容積型圧力計2を校正するもので
ある。
In the standard pressure source 3, a weight 8 is loaded on a ram 7 fitted from above into a cylinder 6 installed vertically, similar to the standard weight type pressure gauge testing machine, and a weight 8 is loaded on a ram 7 fitted from above into a cylinder 6 installed vertically. A standard pressure generation mechanism that generates pressure oil is adopted, and the standard pressure applied to the pressure oil and the water pressure of the pressure water sent to the displacement type pressure gauge 2 by the water pressure pump 10 in the pressure water supply means 4 are combined. , the displacement type pressure gauge 2 is calibrated using pressure water which is balanced via the pressure transmitter 5 and set to a standard pressure.

本考案において、標準圧力源3として分銅8により標準
圧力を発生させる機構を用いるのは、広範囲に精密な標
準圧力を発生させるためであり、圧力媒体である試験用
の圧力水を別置の圧力水供給手段4より供給し、その圧
力水の圧力を上記標準圧力と平衡せしめることにより、
圧力精度のよい標準圧力水を、単純な機構で圧力水量の
制限を受けることなく、また、油の混入を招くことなく
簡単な操作で容易に大容積の容積型圧力計2に供給して
その校正を行うことができるものである。
In this invention, the mechanism for generating standard pressure using a weight 8 as the standard pressure source 3 is used in order to generate a precise standard pressure over a wide range, and the pressure water for testing, which is the pressure medium, is used as a separate pressure source. By supplying the water from the water supply means 4 and balancing the pressure of the water with the standard pressure,
Standard pressure water with good pressure accuracy can be easily supplied to the large-capacity displacement pressure gauge 2 using a simple mechanism, without being limited in the amount of pressure water, and without causing oil contamination. It is something that can be calibrated.

すなわち、本考案の場合、上記圧力水が標準圧力源3の
圧力に匹敵する圧力になっているか否かを検出する精密
圧力計31を備えていて、この精密圧力計31と上記容
積型圧力計2、圧力伝達器5および水圧ポンプ10が十
字継手25にて接続される構成となっている。
That is, the present invention is equipped with a precision pressure gauge 31 that detects whether the pressure water has a pressure comparable to the pressure of the standard pressure source 3, and this precision pressure gauge 31 and the displacement type pressure gauge 2. The pressure transmitter 5 and the water pressure pump 10 are connected through a cross joint 25.

そして、十字継手25と水圧ポンプ10との間に圧力水
の圧力が標準圧力油の圧力に匹敵するとき閉鎖する圧力
制御弁22を設け、十字継手25と圧力伝達器5との間
には圧力水の圧力が標準圧力油の圧力に匹敵するとき開
放する圧力制御弁27を設け、校正時に水圧ポンプ10
が校正に影響を及ぼさないようにして、水圧と油圧が平
衡になるとき圧力制御弁27を開放することにより、圧
力伝達器5での区画界面の変動を小さくして油の水への
混入を防止し、さらに、圧力制御弁22.27の開閉制
御と精密圧力計31による圧力確認とにより、油の水へ
の混入が実質的に無い状態において繰返し校正を行なう
ことができるようにしている。
A pressure control valve 22 is provided between the cross joint 25 and the water pressure pump 10, which closes when the pressure of pressure water is comparable to the pressure of standard pressure oil. A pressure control valve 27 is provided that opens when the water pressure is comparable to the pressure of standard pressure oil, and the water pressure pump 10 is closed during calibration.
By opening the pressure control valve 27 when the water pressure and oil pressure are in equilibrium without affecting the calibration, the fluctuation of the compartment interface in the pressure transmitter 5 is reduced and the mixing of oil into the water is prevented. Further, by controlling the opening and closing of the pressure control valves 22 and 27 and checking the pressure using the precision pressure gauge 31, it is possible to repeatedly perform calibration in a state where there is substantially no mixing of oil into water.

以上のように、本考案は十分な精度を維持し、或いは精
度を向上させつつ作業能率の高い圧力校正を可能とし、
これによって高性能の潜水艦用ベルマウス型耐振深度計
等の容積型圧力計2の校正装置を提供するものである。
As described above, the present invention enables pressure calibration with high work efficiency while maintaining sufficient accuracy or improving accuracy.
This provides a high-performance calibration device for a volumetric pressure gauge 2 such as a bellmouth type vibration-proof depth gauge for submarines.

以下、本考案の構成を一実施例に基づき詳しく説明する
Hereinafter, the configuration of the present invention will be explained in detail based on one embodiment.

第2図に示すように、潜水艦用ベルマウス型耐振深度計
よりなる容積型圧力計2(以下、この実施例において耐
振深度計と呼ぶ。
As shown in FIG. 2, a volumetric pressure gauge 2 consisting of a bellmouth type vibration-proof depth gauge for submarines (hereinafter referred to as a vibration-proof depth gauge in this embodiment).

)は、潜水深度における海水圧によって深度を測定する
もので、ベルマウス筒11及び気柱筒12を具備してい
る。
) measures the depth based on the seawater pressure at the diving depth, and is equipped with a bell mouth tube 11 and an air column tube 12.

ベルマウス筒11は内部にベルマウス型空所13が形成
され、上部に三方継手14の下部開口が、下部には四方
継手15の上部開口がそれぞれ連結されている。
A bellmouth-shaped cavity 13 is formed inside the bellmouth tube 11, and the lower opening of a three-way joint 14 is connected to the upper part, and the upper opening of a four-way joint 15 is connected to the lower part.

気柱筒12の上端および下端は、三方継手14および四
方継手15の側方開口にそれぞれ接続され、気柱筒12
内とベルマウス型空所13とは上下でそれぞれ相互に連
通している。
The upper and lower ends of the air cylinder 12 are connected to the side openings of the three-way joint 14 and the four-way joint 15, respectively, and the air cylinder 12
The inside and the bellmouth-shaped space 13 communicate with each other at the top and bottom, respectively.

三方継手14の上部開口には袋ナツト16、排気柱17
および該排気栓17を固定する固定ネジ18が設けられ
、四方継手15の下部開口には袋ナツト19が設けられ
ている。
A cap nut 16 and an exhaust column 17 are attached to the upper opening of the three-way joint 14.
A fixing screw 18 for fixing the exhaust plug 17 is provided, and a cap nut 19 is provided at the lower opening of the four-way joint 15.

また、四方継手15の一側方開口は圧力水の流出入口2
0であり、耐振深度計2の使用時には、海水がこれによ
り流入して内部に密閉された空気を圧縮し、進入する海
水の圧力と平衡する内部圧縮空気の容積を計測すること
により、深度測定を行う。
Also, one side opening of the four-way joint 15 is the pressure water inlet 2.
0, and when using the vibration-proof depth gauge 2, seawater flows in and compresses the air sealed inside, and the depth is measured by measuring the volume of the internal compressed air that is in equilibrium with the pressure of the incoming seawater. I do.

なお、21は気柱筒12に付設された目盛板であって、
内部空気の容積に相当する深度が目盛られたものである
In addition, 21 is a scale plate attached to the air cylinder 12,
The depth is scaled to correspond to the volume of internal air.

校正装置1は圧力水供給手段4とサイホンよりなる圧力
伝達器5(以下、この実施例においてサイホンと呼ぶ。
The calibration device 1 includes a pressure water supply means 4 and a pressure transmitter 5 consisting of a siphon (hereinafter referred to as a siphon in this embodiment).

)と標準圧力源3とが順次接続されて構成されている。) and a standard pressure source 3 are connected in sequence.

圧力水供給手段4は、圧力水を供給する水圧ポンプ10
と、第1弁22と第2弁23を順次有する接続管24に
より水圧ポンプ10に接続された十字継手25と、耐振
深度計2の流出入口20への接続端から第3弁26、十
字継手25、第4弁27を順次接続し、他端がサイホン
5に接続される供給管28と、並びに第5弁29を有す
る接続管30により十字継手25に接続された精密圧力
計31により構成されている。
The pressure water supply means 4 includes a water pressure pump 10 that supplies pressure water.
, a cross joint 25 connected to the water pressure pump 10 by a connecting pipe 24 having a first valve 22 and a second valve 23 in sequence, a third valve 26 from the connecting end to the inlet 20 of the vibration-proof depth gauge 2, and a cross joint 25, a supply pipe 28 to which the fourth valve 27 is sequentially connected and the other end is connected to the siphon 5, and a precision pressure gauge 31 connected to the cross joint 25 by a connecting pipe 30 having a fifth valve 29. ing.

サイホン5は容器32に下部より1次管33が、上部よ
り2次管34がそれぞれ設けられており、1次管33.
2次管34共に内部に開口しており、容器32内に試験
油(標準圧力油)と圧力水とが上下に自然区画して充満
される。
In the siphon 5, a primary pipe 33 is provided from the lower part of the container 32, and a secondary pipe 34 is provided from the upper part, and the primary pipe 33.
Both of the secondary pipes 34 are open to the inside, and the container 32 is filled with test oil (standard pressure oil) and pressure water, which are naturally divided vertically.

1次管33の外端(下端)には第6弁35を介して標準
圧力源3の連通管36が、2次管34の外端(上端)に
は上記圧力水供給手段4からの供給管28がそれぞれ接
続される。
The communication pipe 36 of the standard pressure source 3 is connected to the outer end (lower end) of the primary pipe 33 via the sixth valve 35, and the communication pipe 36 of the standard pressure source 3 is connected to the outer end (upper end) of the secondary pipe 34, and the pressure water is supplied from the pressure water supply means 4 to the outer end (upper end) of the secondary pipe 34. Tubes 28 are each connected.

標準圧力源3は圧力油に標準圧力を加えてサイホン5を
介して圧力水に伝達するもので、上部に試験油を補給す
べく油槽37が設けられた直立するシリンダ6を有する
油路38に、前記サイホン5からの連通管36および第
7弁39が接続されると共に、可動加圧ピストン40を
内装した加圧シリンダ9が接続されており、上記シリン
ダ6には、上端部に分銅8を載置すべき受皿41を有す
るラム7が上方から摺動自在に嵌着されている。
The standard pressure source 3 applies standard pressure to the pressure oil and transmits it to the pressure water via the siphon 5. The standard pressure source 3 applies a standard pressure to the pressure oil and transmits it to the pressure water via the siphon 5. , a communication pipe 36 and a seventh valve 39 from the siphon 5 are connected, and a pressurizing cylinder 9 having a movable pressurizing piston 40 therein is also connected, and the cylinder 6 has a weight 8 at its upper end. A ram 7 having a tray 41 to be placed thereon is slidably fitted from above.

次に、耐振深度計2に深度目盛をきざむ場合について、
校正装置1の操作の一例を説明する。
Next, regarding the case of notching the depth scale on the vibration-proof depth gauge 2,
An example of the operation of the calibration device 1 will be explained.

まず、第1弁22、第2弁23、第3弁26、第4弁2
7、第5弁29および排気栓17を開放し、第6弁35
および第7弁39を閉鎖した状態で、水圧ポンプ10に
より供給管28およびサイホン5に水を供給する。
First, the first valve 22, the second valve 23, the third valve 26, and the fourth valve 2
7. Open the fifth valve 29 and exhaust plug 17, and open the sixth valve 35.
With the seventh valve 39 closed, water is supplied to the supply pipe 28 and the siphon 5 by the hydraulic pump 10.

この際、サイホン5の空気抜き弁(図示省略)を開放し
ておき、供給管28およびサイホン5内の空気を系外に
放出し、上記空気抜き弁を閉鎖する。
At this time, the air vent valve (not shown) of the siphon 5 is left open, the air in the supply pipe 28 and the siphon 5 is discharged to the outside of the system, and the air vent valve is closed.

また、気柱筒12における水位を基線A(零点)に一致
させる。
Further, the water level in the air cylinder 12 is made to coincide with the base line A (zero point).

次いで、上記排気栓17を閉鎖し、耐振深度計2の内部
が大気圧のままで、水位が基線Aに一致していることを
確認した後、第3弁26、第4弁27を閉鎖し、圧力水
を0.2kg/crKはど上げ、その後、第3弁26を
開放して、例えば深度150mに相当する圧力にまで水
圧ポンプ10により加圧し、その圧力を精密圧力計31
により確認して第1弁22を閉鎖する。
Next, the exhaust valve 17 is closed, and after confirming that the inside of the vibration-proof depth gauge 2 remains at atmospheric pressure and the water level matches the baseline A, the third valve 26 and the fourth valve 27 are closed. , raise the pressure water by 0.2 kg/crK, then open the third valve 26, pressurize it with the water pressure pump 10 to a pressure corresponding to a depth of 150 m, for example, and measure the pressure with the precision pressure gauge 31.
After confirming this, the first valve 22 is closed.

この後、標準圧力源3のラム7上に、深度150九に相
当する圧力に対応する質量の分銅8を載置し、第6弁3
5を開放して加圧シリンダ9の加圧ピストン40の操作
により試験油を加圧し深度1507FLに相当する圧力
到達後、試験油の標準圧力がサイホン5を介して圧力水
に伝達され、第4弁27に至るまでの供給管28内が標
準圧力に維持される。
After that, a weight 8 having a mass corresponding to a pressure corresponding to a depth of 1509 is placed on the ram 7 of the standard pressure source 3, and the sixth valve 3
5 is opened and the test oil is pressurized by operating the pressurizing piston 40 of the pressurizing cylinder 9, and after reaching a pressure corresponding to a depth of 1507 FL, the standard pressure of the test oil is transmitted to the pressure water via the siphon 5, and the fourth The pressure inside the supply pipe 28 up to the valve 27 is maintained at standard pressure.

この後、第4弁27を注意深く徐々に開くと、耐振深度
計2内の圧力が標準圧力に比して高い場合にはラム7が
上昇し、低い場合には下降するので、さらに加圧シリン
ダ9の加圧ピストン40を操作して、ラム7を所定の位
置(油圧により少し浮き上った状態)に調整する。
After this, when the fourth valve 27 is carefully and gradually opened, the ram 7 rises when the pressure inside the vibration-proof depth gauge 2 is higher than the standard pressure, and falls when it is lower, so that the pressure cylinder 9, the ram 7 is adjusted to a predetermined position (a state in which it is slightly raised due to the hydraulic pressure).

なお、このラム7の上下動は精密圧力計31の指針の動
きによりある程度は予知できる。
The vertical movement of the ram 7 can be predicted to some extent by the movement of the pointer of the precision pressure gauge 31.

このようにして、耐振深度計2内の水圧を標準圧力に保
持し、気柱筒12の指示を校正し、この位置で目盛板2
1に150m、の目盛をきざむ。
In this way, the water pressure inside the vibration-proof depth gauge 2 is maintained at the standard pressure, the indication on the air cylinder 12 is calibrated, and the scale plate 2
Mark the scale at 150m.

以下、同様にして各深度の目盛を形設するものである。Thereafter, scales for each depth are formed in the same manner.

以上、操作の一例を示したが、第2弁23、第3弁26
、第5弁29はそれぞれ必要に応じて設ければよい。
An example of the operation has been shown above, but the second valve 23, the third valve 26
, and the fifth valve 29 may be provided as necessary.

また、耐振深度計2の示度検査の場合も上記と同様の操
作であり、標準圧力での気柱筒12の指示が目盛板21
の目盛に合致するか否かによって検査を行えばよいもの
である。
In addition, when inspecting the reading of the vibration-proof depth gauge 2, the operation is similar to the above, and the indication of the air cylinder 12 at standard pressure is indicated by the scale plate 21.
It is sufficient to perform an inspection depending on whether or not it matches the scale of .

なお、上記実施例においては、圧力伝達器5にサイホン
を用いたが、容器内で圧力水を強制的に区画するように
したものでもよい。
In the above embodiment, a siphon is used as the pressure transmitter 5, but it may be one in which the pressure water is forcibly divided within the container.

この一例としては、区画膜を用いたものが挙げられる。An example of this is one using a compartment membrane.

また、本考案による校正の対象は、潜水艦用深度計2に
限らず、内容積の大きな容積型圧力計に対し適用可能で
ある。
Further, the object of the calibration according to the present invention is not limited to the submarine depth gauge 2, but can be applied to a positive displacement pressure gauge having a large internal volume.

以上説明したように、本考案によれば、水圧ポンプによ
り加圧した圧力水の圧力や標準圧力油の圧力に匹敵する
ときに、標準圧力油の圧力を圧力水に伝達して容積型圧
力計に及ぼすことから、標準圧力油の圧力が容積型圧力
計に作用するとき、容積型圧力計に実質的に作用するも
のは靜氷圧であり、圧力伝達器での区画界面の変動が小
さく、圧力水への油の混入が防止することができる。
As explained above, according to the present invention, when the pressure of pressurized water pressurized by a water pressure pump or the pressure of standard pressure oil is comparable, the pressure of standard pressure oil is transmitted to pressure water and a positive displacement pressure gauge is used. Therefore, when the pressure of standard pressure oil acts on a positive displacement pressure gauge, what actually acts on the positive displacement pressure gauge is a cold pressure, and the fluctuation of the compartment interface in the pressure transmitter is small. It is possible to prevent oil from entering pressure water.

また、標準圧力源の圧力を変えて校正を行なう場合でも
、圧力制御弁の開閉制御と精密圧力計での圧力確認によ
り、上記区画界面の大きな変動およびそれに伴う上記油
の混入を招くことなく、標準圧力源の圧力を容積型圧力
計に圧力精度の高い圧力水を介して伝えることができる
In addition, even when performing calibration by changing the pressure of the standard pressure source, by controlling the opening and closing of the pressure control valve and checking the pressure with a precision pressure gauge, large fluctuations in the partition interface and concomitant contamination of the oil can be avoided. The pressure of a standard pressure source can be transmitted to a positive displacement pressure gauge via pressure water with high pressure accuracy.

従って、容積型圧力計の校正を種々の圧力で繰返し行な
っても、容積型圧力計内部への油膜の付着を招くことが
なく、正確な校正を行なうことができてその精密が向上
し、示度検査時においても再現性が非常に良くなる。
Therefore, even if the displacement type pressure gauge is repeatedly calibrated at various pressures, an oil film does not adhere to the inside of the displacement type pressure gauge, making it possible to perform accurate calibration, improving accuracy, and improving the display. The reproducibility is also very good during the temperature inspection.

また、上記のように、油膜が付着しないために、その洗
浄作業も不要となり、更に、水圧ポンプにより所定の圧
力近傍まで短時間で加圧することができるので、作業能
率が著しく向上する。
Furthermore, as mentioned above, since no oil film is deposited, there is no need for cleaning work, and furthermore, the pressure can be increased to near a predetermined pressure in a short time using a hydraulic pump, so the work efficiency is significantly improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の基本構成を示す概念図、第2図は実施
態様を例示する構成図である。 1・・・・・・校正装置、2・・・・・・容積型圧力計
、3・・・・・・標準圧力源、4・・・・・・圧力水供
給手段、5・・・・・・圧力伝達器、7・・・・・・ラ
ム、8・・・・・・分銅、9・・回加圧シリンダ、10
・・・・・・水圧ポンプ、11・・・・・・ベルマウス
筒、20・・・・・・流出入口、22,27・・・・・
・圧力制御弁、25・・・・・・十字継手、28・・・
・・・供給管、31・・・・・・精密圧力計、40・・
・・・・加圧ピストン。
FIG. 1 is a conceptual diagram showing the basic configuration of the present invention, and FIG. 2 is a configuration diagram illustrating an embodiment. 1... Calibration device, 2... Volume type pressure gauge, 3... Standard pressure source, 4... Pressure water supply means, 5... ...Pressure transmitter, 7...Ram, 8...Weight, 9...Times pressurizing cylinder, 10
...Water pressure pump, 11...Bellmouth cylinder, 20...Outlet and outlet, 22, 27...
・Pressure control valve, 25... Cross joint, 28...
... Supply pipe, 31 ... Precision pressure gauge, 40 ...
...Pressure piston.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 潜水艦用ベルマウス型耐振深度計等の容積型圧力計を校
正する装置において、標準圧力油を送給する標準圧力源
と、圧力水を送給する水圧ポンプと、上記標準圧力源か
ら送給される標準圧力油と水圧ポンプから十字継手を介
して送給される圧力水とを区画して受容し区画界面を通
じて相互に圧力を伝達する圧力伝達器と、上記十字継手
に接続されていて水圧ポンプにて加圧された圧力水が標
準圧力源の圧力に匹敵する圧力になっているか否かを検
出する精密圧力計とを備え、上記十字継手を容積型圧力
計に接続するようにしており、十字継手と水圧ポンプと
の間には上記圧力水の圧力が標準圧力油の圧力に匹敵す
るときに閉鎖する圧力制御弁が介装され、十字継手と圧
力伝達器との間には圧力水の圧力が標準圧力油の圧力に
匹敵するときに開放する圧力制御弁が介装されているこ
とを特徴とする容積型圧力計の校正装置。
In a device for calibrating volumetric pressure gauges such as bellmouth-type vibration-proof depth gauges for submarines, there is a standard pressure source that supplies standard pressure oil, a water pressure pump that supplies pressure water, and a system that supplies water from the standard pressure source. a pressure transmitter that divides and receives standard pressure oil and pressure water supplied from the water pressure pump via the cross joint and transmits pressure to each other through the partition interface; and a water pressure pump that is connected to the cross joint. and a precision pressure gauge for detecting whether the pressure water pressurized by the pressurized water has a pressure comparable to the pressure of the standard pressure source, and the cross joint is connected to the displacement type pressure gauge, A pressure control valve that closes when the pressure of the pressure water is comparable to the pressure of standard pressure oil is interposed between the cross joint and the water pressure pump, and a pressure control valve that closes when the pressure of the pressure water is comparable to the pressure of standard pressure oil is installed between the cross joint and the pressure transmitter. A calibration device for a positive displacement pressure gauge, characterized in that it is equipped with a pressure control valve that opens when the pressure is comparable to the pressure of standard pressure oil.
JP6754179U 1979-05-19 1979-05-19 Calibration device for volumetric pressure gauge Expired JPS6017721Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6754179U JPS6017721Y2 (en) 1979-05-19 1979-05-19 Calibration device for volumetric pressure gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6754179U JPS6017721Y2 (en) 1979-05-19 1979-05-19 Calibration device for volumetric pressure gauge

Publications (2)

Publication Number Publication Date
JPS55167114U JPS55167114U (en) 1980-12-01
JPS6017721Y2 true JPS6017721Y2 (en) 1985-05-30

Family

ID=29301451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6754179U Expired JPS6017721Y2 (en) 1979-05-19 1979-05-19 Calibration device for volumetric pressure gauge

Country Status (1)

Country Link
JP (1) JPS6017721Y2 (en)

Also Published As

Publication number Publication date
JPS55167114U (en) 1980-12-01

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