JP2006260385A - Pressure governor and processing method - Google Patents

Pressure governor and processing method Download PDF

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JP2006260385A
JP2006260385A JP2005079391A JP2005079391A JP2006260385A JP 2006260385 A JP2006260385 A JP 2006260385A JP 2005079391 A JP2005079391 A JP 2005079391A JP 2005079391 A JP2005079391 A JP 2005079391A JP 2006260385 A JP2006260385 A JP 2006260385A
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pressure
secondary
chamber
diaphragm
side
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Shuichi Inoue
Hiroyuki Nishimura
Hideki Yamaguchi
修一 井上
秀樹 山口
寛之 西村
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Osaka Gas Co Ltd
大阪瓦斯株式会社
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00Control of fluid pressure
    • G05D16/04Control of fluid pressure without auxiliary power
    • G05D16/06Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0672Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using several spring-loaded membranes

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure governor and its processing method for suppressing degradation of air tightness and pressure governance, and securing good performance even for long term use. <P>SOLUTION: Regarding the pressure governor 100, a diaphragm 50 is made of rubber with smaller compressive permanent distortion than that of a pressure receiver 51 dividing a tucking section 52 compressed and tucked at a flange connecting section 3a into a pressure equalizing chamber and a secondary pressure chamber. Further, the processing method of the pressure governor 100 executes a holding process for heating the assembled pressure governor to the preset temperature and holding for a certain period of time. Further again, the processing method of the pressure governor 100 comprising a biasing mechanism made of a spring member 40 for biasing to increase the opening of a valve mechanism 30 executes the holding process for holding the assembled pressure governor 100 for a certain period of time, and executes an adjusting process for adjusting the biasing strength of the spring member 40 after executing the holding process. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器、及び、その整圧器の使用前に実行される処理方法に関する。 The present invention includes a main body casing and a lower casing formed by flange connections upper casing and inside the secondary pressure chamber is formed equalization chamber is formed therein, said the equalizing chamber said secondary pressure a diaphragm comprising a clamping portion to be clamped in a compressed state flange connection between the pressure receiving portion and the upper casing and the lower casing for partitioning the chamber, the two communicating with the secondary pressure chamber from the primary flow path a valve mechanism for opening decreases as the pressure receiving portion of the adjustable and the diaphragm flow rate of the gas to the next side passage is displaced toward the equalizing chamber side from the secondary side pressure chamber side, the valve mechanism pressure regulators provided with a biasing mechanism for urging in a direction of increasing the opening degree, and a processing method that is performed prior to use of the pressure regulators.

上記のような整圧器は、ダイヤフラムの受圧部が二次側流路に連通する二次側圧力室の圧力を感知して変位し、その変位に伴ってバルブ機構の開度を調整することで、二次側流路の圧力を設定圧力に安定させるように構成されている(例えば、特許文献1及び2を参照。)。 Pressure regulators, such as described above, since the pressure receiving portion of the diaphragm is displaced by sensing the pressure of the secondary pressure chamber communicating with the secondary channel, adjusts the opening degree of the valve mechanism in accordance with the displacement It is configured to stabilize the pressure of the secondary-side flow path set pressure (for example, see Patent documents 1 and 2.).

従来の整圧器に設けられるダイヤフラムとしては、一般的に、基布を覆う形態で合成ゴム材料(例えばニトリルゴム(NBR))を一体成形したものが利用されている(例えば、特許文献3を参照。)。 The diaphragm provided in the divider conventional integer, generally, are integrally molded synthetic rubber material in a form to cover the base fabric (eg nitrile rubber (NBR)) are used (e.g., see Patent Document 3 .).
そして、上記ダイヤフラムの外周縁部に形成される挟持部が上部ケーシングのフランジ面と下部ケーシングのフランジ面とにより圧縮状態で挟持されることにより、本体ケーシング内の気密性能を得ることができ、更に、ダイヤフラムの中央部の受圧部により本体ケーシング内が均圧室と二次側圧力室とに区画される。 By pinching portion formed on the outer peripheral edge of the diaphragm is sandwiched in a compressed state by the flange surface and the flange surface of the lower casing of the upper casing, it is possible to obtain the airtight performance of the main casing further , the main body casing is divided into a uniform pressure chamber and a secondary pressure chamber by the pressure receiving portion of the central portion of the diaphragm.

また、上記バルブ機構の開度を増加させる方向に付勢する付勢機構については、一般的にコイルばね等のばね部材が利用されている。 Also, the urging mechanism for urging in a direction to increase the opening of the valve mechanism, generally a spring member such as a coil spring is utilized.
そして、このような整圧器では、二次側流路の圧力が変動した場合に、ダイヤフラムの受圧部が均圧室側と二次側流路側との間で変位して、その変位に伴ってバルブ機構の開度及びガスの流量が調整されて、二次側流路の圧力を安定させる整圧性能を得ることができる。 And, in such pressure regulators, if the pressure of the secondary flow path is changed, the pressure receiving portion of the diaphragm is displaced between the equalizing chamber and secondary sides flow path, along with the displacement the flow rate of the opening and the gas valve mechanism is adjusted, it is possible to obtain a Sei圧 performance to stabilize the pressure of the secondary-side flow path.

特開2003−288124号公報 JP 2003-288124 JP 特開20001208954号公報 JP 20001208954 discloses 実開平5−66368号公報 Real Hei 5-66368 Patent Publication

上記のような従来の整圧器では、特に長期にわたる使用により、その性能が低下し、補修又は交換を要する場合があった。 In conventional pressure regulators, such as described above, in particular using long-term, its performance is reduced, in some cases requiring repair or replacement.
このような整圧器の性能低下としては、気密性能の低下、即ち上部ケーシングと下部ケーシングとのフランジ接続部におけるシール性の低下や、整圧性能の低下、即ち二次側流路の圧力の設定圧力に対する変動や低下がある。 Such pressure regulators degradation, degradation of airtightness, i.e. decrease in sealing properties in the flange connection between the upper casing and the lower casing, lowering of Sei圧 performance, i.e. setting the pressure of the secondary-side flow path there is a change or decrease with respect to the pressure.

本発明は、上記の課題に鑑みてなされたものであり、その目的は、長期にわたって使用しても、上記のような気密性能の低下や整圧性能の低下を抑制して、良好な性能を確保することができる整圧器及びその処理方法を提供する点にある。 The present invention has been made in view of the above problems, its object is also used for a long time, and suppress a decrease in the degradation or Sei圧 performance of airtightness as described above, a good performance it is to provide an pressure regulators and a processing method thereof which can be secured.

上記目的を達成するための本発明に係る整圧器は、内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器であって、その第1特徴構成は、前記ダイヤフラムが、前記挟持部を前記受圧部よりも圧 Pressure regulators according to the present invention for achieving the above object, a body casing and a lower casing formed by a flange connection secondary pressure chamber inside the upper casing interior evenly chamber will be formed a diaphragm comprising a clamping portion to be clamped in a compressed state flange connection between the pressure receiving portion and the upper casing and the lower casing for partitioning said the equalizing chamber said secondary pressure chamber, the primary flow path open the higher the pressure receiving portion of the adjustable and the diaphragm flow rate of gas to the secondary-side flow path communicating with the secondary pressure chamber is displaced toward the equalizing chamber side from the secondary side pressure chamber side a valve mechanism degrees is decreased, the a pressure regulators provided with a biasing mechanism for urging in a direction to increase the opening of the valve mechanism, the first feature structure, the diaphragm, the clamping portion pressure than the pressure receiving portion 永久ひずみが小さいゴム材料で形成してなる点にある。 Lies in permanent set is formed of a small rubber material.
尚、本願において、圧縮永久ひずみとは、日本工業規格JIS K 6262に規定されている試験方法により測定されるものであり、詳しくは、ゴム材料において圧縮変形を起こさせた場合に、その圧縮力を完全に除去した後も残存する変形の上記圧縮変形に対する割合で示される。 In the present application, compression set and is intended to be measured by the test method specified in Japanese Industrial Standard JIS K 6262, particularly, when to cause a compressive deformation in the rubber material, the compressive force represented by the ratio of the relative complete removal was also the compressive deformation of the deformation remaining after.

上記整圧器の第1特徴構成によれば、ダイヤフラムの挟持部を、受圧部を形成する材料とは異なり、受圧部よりも圧縮永久ひずみが小さいゴム材料で形成することで、上部ケーシングと下部ケーシングとのフランジ接続部において、圧縮状態で挟持された挟持部の圧縮永久ひずみが抑制され、挟持部の復元力が良好に確保されるので、長期にわたって使用しても、挟持部の夫々のフランジ面に対する密着性を良好なものとして気密性能の低下を抑制し、良好な性能を確保することができる。 According to a first characterizing feature of the divider the integer, the clamping portion of the diaphragm, unlike the material forming the pressure receiving portion, by forming a rubber material compression set is less than the pressure receiving portion, the upper casing and the lower casing in the flange connection of the compression set of the pinching portion which is pinched in a compressed state is suppressed, since the restoring force of the clamping portion is satisfactorily ensured, even when used over a long period, the flange surface of each of the clamping portions the adhesion suppressing a decrease in airtightness as favorable for, it is possible to ensure good performance.

本発明に係る整圧器の第2特徴構成は、前記フランジ接続部の前記ダイヤフラムの挟持部よりも外側に、Oリングによりシールされるシール部を備えた点にある。 The second characterizing feature of the pressure regulators according to the present invention, outside the clamping portion of the diaphragm of the flange connection lies in having a seal portion to be sealed by the O-ring.

上記整圧器の第2特徴構成によれば、フランジ接続部において、ダイヤフラムの挟持部を圧縮状態で挟持することによるシール性に加えて、上記シール部によるシール性を持たせることができ、一方側のシール性が低下した場合でも他方のシール性が確保されていることにより、長期使用による気密性能の低下を一層抑制することができる。 According to a second characterizing feature of the divider the integer, the flange connection, in addition to the sealability due to sandwich the clamping portion of the diaphragm in a compressed state, can have a sealing property due to the seal portion, one side by sealing of is it ensured that the other sealing properties even when reduced, it is possible to further suppress the deterioration of the airtightness according to long-term use.

本発明に係る整圧器の処理方法は、内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器の使用前に実行される処理方法であって、その特徴構成は、前記整圧器が、上述した第1又は第2特徴構 Processing method of pressure regulators according to the present invention includes a main body casing comprising a lower casing secondary pressure chamber inside the upper casing interior evenly chamber is formed is formed by a flange connection, the pressure equalization a diaphragm comprising a clamping portion to be clamped in a compressed state flange connection between the pressure receiving portion and the upper casing and the lower casing for partitioning the chamber and the secondary pressure chamber, the secondary from the primary flow path opening the more displacement is decreased toward the pressure receiving portion of the adjustable and the diaphragm flow rate of gas to the secondary-side flow path which communicates with the side pressure chamber the secondary pressure chamber side in the equalizing chamber side and a valve mechanism, wherein a processing method that is executed prior to the use of pressure regulators provided with a biasing mechanism for urging in a direction to increase the opening of the valve mechanism, its characteristic configuration, the pressure regulators are, the first or second feature structure as described above の何れかを備えた整圧器として構成され、前記整圧器を組み立てた状態で設定温度に加熱して一定時間保持する保持工程を実行する点にある。 It is configured as pressure regulators having one of lies in executing the holding step of holding a predetermined time and heating the set temperature in the assembled state of the pressure regulators.

上記整圧器の処理方法の特徴構成によれば、整圧器を組み立てた状態で上記保持工程を実行して、その整圧器を設定温度に加熱して一定時間保持することで、その受圧部よりも圧縮永久ひずみが小さいゴム材料で形成された挟持部の外表面が夫々のフランジ面に圧着された状態で若干塑性変形することにより、塑性変形による復元力の低下が極力抑制された状態で、挟持部の夫々のフランジ面に対する密着性を一層向上させることができる。 According to the above characteristic structure pressure regulators processing method, by running the holding step in the assembled pressure regulators, by a predetermined time held by heating the pressure regulators to the set temperature, than the pressure-receiving portion by slightly plastically deformed in a state where the outer surface of the clamping portion formed by compression set is small rubber material is pressed against the flange surface of each, with the decrease in the restoring force due to plastic deformation is suppressed as much as possible, sandwiching the adhesion to flange surfaces of the respective parts can be further improved. よって、組み立てた状態の整圧器に対して使用前に上記のような処理方法を実行することにより、その後長期にわたって使用しても、挟持部の夫々のフランジ面に対する密着性を良好なものとして気密性能の低下を抑制して良好な性能を確保することができる整圧器を製造することができる。 Therefore, by executing the above-described processing method before use with pressure regulators in an assembled state, airtightness then be used for a long time, the adhesion to the flange surface of each of the clamping portions as good it is possible to produce a pressure regulators which can ensure good performance by suppressing deterioration in performance.

尚、上記設定温度は、上記挟持部のフランジ面に対する密着性を向上し得る温度以上に設定され、且つ、整圧器に設けられた各種部品が熱により機能低下する最低温度以下、特に、上記挟持部の塑性変形が促進されすぎてフランジ接続部の気密性能が低下する最低温度以下に設定することが望ましく、例えば、40℃〜100℃程度の範囲内に設定することができる。 Incidentally, the set temperature is set above a temperature capable of improving the adhesion to the flange surface of the clamping portion, and the minimum temperature various parts provided on the pressure regulators is degraded by heat following, in particular, the clamping it is desirable that parts plastic deformation is too promotes the airtight performance of the flange connection set below the minimum temperature to be lowered, for example, it can be set within the range of about 40 ° C. to 100 ° C..

本発明に係る整圧器の処理方法の別の特徴構成は、前記付勢手段がばね部材からなり、 Another characterizing feature of the method of processing pressure regulators according to the present invention, the biasing means comprises a spring member,
前記整圧器を組み立てた状態で一定時間保持する保持工程を実行し、 Run the holding step of holding a predetermined time in a state of assembling the pressure regulators,
前記保持工程を実行した後に、前記ばね部材の付勢力を調整する調整工程を実行する点にある。 After performing said holding step lies in executing the adjustment step of adjusting the urging force of the spring member.

上記整圧器の処理方法の特徴構成によれば、上記付勢手段がばね部材からなる場合には、整圧器を組み立てた状態で上記保持工程を実行して、その整圧器を一定時間保持することで、そのばね部材に比較的大きな初期へたりを発生させることができるので、その後の使用時にばね部材に発生するへたりを低減させることができる。 According to the above characteristic structure pressure regulators processing method, when said biasing means comprises a spring member, by running the holding step in the assembled pressure regulators, keeping a certain time the pressure regulators in, it is possible to generate a or relatively to the large initial to the spring member, it is possible to reduce the subsequent sag occurring in the spring member during use. そして、この保持工程を実行した後に、そのばね部材のバルブ機構に対する付勢力を調整することで、その後長期にわたって使用しても、ばね部材に発生するへたりが低減されることから、その調整した付勢力を良好に維持して、整圧性能の低下を抑制することができる整圧器を製造することができる。 Then, after executing this holding step, by adjusting a biasing force against the valve mechanism of the spring member, then it is used for a long time, since the sag occurring in the spring member can be reduced, and the adjustment the biasing force maintaining good, it is possible to produce a pressure regulators capable of suppressing the lowering of Sei圧 performance.

更に、上記特徴構成において、前記保持工程において、前記整圧器を設定温度に加熱することにより、上述したように、挟持部の夫々のフランジ面に対する密着性を一層向上させ、その後長期にわたって使用しても、挟持部の夫々のフランジ面に対する密着性を良好なものとして気密性能の低下を抑制して良好な性能を確保することができる整圧器を製造することができる。 Further, in the above construction, in the holding step, by heating the pressure regulators to the set temperature, as described above, further improve the adhesion to the flange surface of each of the clamping portion, then use for a long time also, it is possible to produce a pressure regulators capable of adhesion to the flange surface of each of the clamping portion to suppress a decrease in airtightness as favorable to ensure good performance.

本発明に係る整圧器及びその処理方法の実施の形態について、図面に基づいて説明する。 Embodiments of the pressure regulators and the processing method according to the present invention will be described with reference to the drawings.

〔整圧器〕 [Pressure regulators]
図1に示す整圧器100は、内部に均圧室10が形成される上部ケーシング1と内部に二次側圧力室20が形成される下部ケーシング2とをフランジ接続してなる本体ケーシング3を備える。 Pressure regulators 100 shown in FIG. 1 includes a body casing 3 composed of a lower casing 2 in which the upper casing 1 and the inside secondary pressure chamber 20 which equalizing chamber 10 is formed inside is formed by flange connection .
また、この本体ケーシング3は、上部ケーシング1の下方側のフランジ面1aと、下部ケーシング2の上方側のフランジ面2aとを重ね合わせた状態でボルト・ナット(図示せず)により螺合される所謂フランジ接続されることで一体化されている。 Further, the main body casing 3 is screwed with the flange surface 1a of the lower side of the upper casing 1 by bolts and nuts (not shown) in a state of superposing the flange surface 2a of the upper side of the lower casing 2 It is integrated by being a so-called flange connection.

更に、上部ケーシング1と下部ケーシング2との間には、均圧室10と二次側圧力室20とを区画する受圧部51と、上部ケーシング1と下部ケーシング2とのフランジ接続部3aに圧縮状態で挟持される挟持部52とからなるダイヤフラム50が設けられている。 Furthermore, between the upper casing 1 and lower casing 2, a pressure receiving portion 51 partitioning the equalizing chamber 10 and the secondary-side pressure chamber 20, compressing the flange connection portion 3a of the upper casing 1 and lower casing 2 diaphragm 50 made of clamping portion 52 which is held in the state is provided.

このダイヤフラム50は、略円盤状に形成されており、その外周縁部に形成された挟持部52の内側に円形の受圧部51が形成されている。 The diaphragm 50 is formed in a substantially disk shape, a circular pressure receiving portion 51 is formed inside of the formed sandwiching section 52 on its outer periphery. また、この受圧部51の挟持部52に対する境界部には、受圧部51を上下方向に容易に変位させるための可撓部53が形成されている。 In addition, the boundary portion with respect to the sandwiching section 52 of the pressure receiving portion 51, the flexible portion 53 for easily displace the pressure receiving portion 51 in the vertical direction is formed.

また、ダイヤフラム50の受圧部51は、基布に含浸させた形態のニトリルゴムにより形成されており、一方、フランジ接続部3aに圧縮状態で挟持される挟持部52は、その受圧部51を形成する材料とは異なり受圧部51よりも圧縮永久ひずみが小さいゴム材料、例えば、エピクロルヒドリンゴム、ブチルゴム、スチレンブタジエンゴム(SBR)、クロロプレンゴム、フッ素系ゴム等で形成されている。 Further, the pressure receiving portion 51 of the diaphragm 50 is formed by a nitrile rubber in a form impregnated in the base fabric, while the clamping portion 52 sandwiched in a compressed state to the flange connecting portion 3a, forms the pressure receiving portion 51 to the rubber material compression set is less than the pressure receiving portion 51 unlike materials, e.g., epichlorohydrin rubber, butyl rubber, styrene-butadiene rubber (SBR), chloroprene rubber, and is formed with a fluorine-based rubber.
よって、フランジ接続部3aにおいて、圧縮状態で挟持された挟持部52の圧縮永久ひずみが抑制されることで、挟持部52の復元力が良好に確保される。 Thus, the flange connection 3a, compression set of the pinching portion 52 which is held in a compressed state by being suppressed, the restoring force of the clamping portion 52 can be well secured. よって、長期にわたって使用しても、挟持部52の夫々のフランジ面1a,2aに対する密着性が良好なものに維持され、特に二次側圧力室20の外部に対する気密性能の低下が抑制される。 Therefore, even when used for a long time, each of the flange surface 1a of the sandwiching portion 52, adhesion to 2a is maintained in favorable reduction in airtightness can be suppressed particularly for the secondary-side pressure chamber 20 outside.

尚、このようなダイヤフラム50については、上記受圧部51に対して挟持部52を上記受圧部51とは異なる材料で一体成形することで製造することができる。 Note that such a diaphragm 50 can be produced by integrally molding a different material than the above pressure-receiving portion 51 of the clamping portion 52 relative to the pressure-receiving portion 51.
また、受圧部51の均圧室10側には、その受圧部51の形状を略平面状に保持するための保持板部材54が貼り付けられている。 Further, the equalizing chamber 10 side of the pressure receiving portion 51, is adhered holding plate member 54 for holding the shape of the pressure receiving portion 51 to the substantially flat.

更に、このダイヤフラム50の挟持部52は、図2に示すように、ダイヤフラム50の外周縁部を、円形断面を有する環状、即ちOリング状に形成してなる。 Furthermore, clamping portion 52 of the diaphragm 50, as shown in FIG. 2, the outer circumferential edge portion of the diaphragm 50, made by forming an annular having circular cross-section, i.e. the O-ring shape.
そして、この挟持部52が、下部ケーシング2側のフランジ面2aに環状に形成された溝部2cに上下方向において圧縮状態で嵌合されることで、二次側圧力室20の気密性能が一層向上されている。 Then, the clamping portion 52, that is fitted in a compressed state in the vertical direction in the groove portion 2c formed in the annular flange surface 2a of the lower casing 2 side, further improving the airtightness of the secondary pressure chamber 20 It is.

尚、本実施形態では、ダイヤフラム50の外周縁部を構成する円形断面部分のみを挟持部52として受圧部51よりも圧縮永久ひずみが小さいゴム材料により構成しているが、その円形断面部分に加えてその内側のフランジ接続部3aに挟持される平面部分を挟持部52として上記圧縮永久ひずみが小さいゴム材料により構成しても構わない。 In the present embodiment, is constituted by a rubber material compression set is less than the pressure receiving portion 51 only circular cross section as clamping portion 52 constituting the outer peripheral edge portion of the diaphragm 50, in addition to the circular cross section may be configured by the compression set is small rubber material planar portion sandwiched flange connection portion 3a of the inner as clamping portion 52 Te.

更に、フランジ面2aの上記溝部2cよりも外側には、ダイヤフラム50の挟持部52とは別のOリング56が上下方向に圧縮状態で嵌合する環状の溝部2bが形成されている。 Further, on the outer side than the groove 2c of the flange surface 2a, another O-ring 56 is an annular groove 2b to be fitted in a compressed state in the vertical direction is formed to the clamping portion 52 of the diaphragm 50.
即ち、フランジ接続部3aは、挟持部52よりも外側において、Oリング56によりシールされるシール部を備えることで、ダイヤフラム50の挟持部52によるシール性に加えて2重のシール性を有することになり、例えば、一方側のシール性が低下した場合でも他方のシール性が確保されていることにより、長期使用による気密性能の低下が一層抑制される。 That is, the flange connection portion 3a, the outer side than the clamping portion 52, by providing the sealing portion which is sealed by O-ring 56, to have a double sealing property in addition to the sealability by the clamping portion 52 of the diaphragm 50 It becomes, for example, while the other sealing property even when the side of the sealing property is reduced by being secured, lowering of airtightness by long-term use can be further suppressed.
尚、このOリング56は、上記挟持部52と同様に、圧縮永久ひずみが小さい材料で形成することが望ましい。 Incidentally, the O-ring 56, similar to the clamping portion 52 is preferably formed by compression set is small materials.

図1を参照して、上部ケーシング1の内部に形成された均圧室10は、均圧孔11により外部に連通し、その均圧孔11を大気などの圧力が一定に保たれる部分に接続することで、均圧室10の圧力が一定に保たれる。 Referring to FIG. 1, formed inside the uniform pressure chamber 10 of the upper casing 1 is communicated with the outside by the pressure equalizing hole 11, the pressure equalization hole 11 in the portion where the pressure of such air is kept constant by connecting the pressure equalizing chamber 10 is kept constant.

下部ケーシング2には、ガスGが流入する流入口21とガスGが流出する流出口24とが形成され、更にその内部には、その流入口21から流入したガスGを後述する弁座口33に導く一次側流路22と、その一次側流路22から同弁座口33を通じて流入したガスGを流出口24に導く二次側流路23とが形成されている。 The lower casing 2, are formed with outlet 24 for outflow inlet 21 and the gas G which gas G flows, and more inside, the valve seat opening below the gas G which has flowed from the inlet port 21 33 the primary side flow passage 22 leading to the secondary-side flow path 23 for guiding the gas G which has flowed through the valve seat port 33 from the primary flow path 22 to the outlet port 24 is formed.
尚、上記弁座口33は、上方側の一次側流路22と下方側の二次側流路23とを仕切る開口部として形成されている。 Incidentally, the valve seat port 33 is formed as an opening which separates the upper primary flow path 22 and the lower side of the side secondary flow path 23.

また、下部ケーシング2の内部に形成された二次側圧力室20は、導圧路25を通じて二次側流路23に連通することで、二次側流路23の圧力と同等の圧力とされている。 Further, formed inside of the lower casing 2 the secondary pressure chamber 20, by communicating with the secondary-side flow path 23 through the guide passage 25, is the pressure equivalent to the pressure of the secondary-side flow path 23 ing.

下部ケーシング2内には、一次側流路22から二次側流路23へのガスGの流量を調整可能なバルブ機構30が設けられており、更にこのバルブ機構30は、ダイヤフラム50の受圧部51が二次側圧力室20側から均圧室10側に向けて変位するほど開度が減少するように構成されている。 The lower casing 2 has an adjustable valve mechanism 30 the flow rate of the gas G from the primary flow path 22 to the secondary-side flow path 23 is provided, further the valve mechanism 30, the pressure receiving portion of the diaphragm 50 51 opening as displaced toward the secondary pressure chamber 20 side equalizing pressure chamber 10 side is configured to decrease.

即ち、バルブ機構30は、一次側流路22と二次側流路23との間に形成された弁座口33と、その弁座口33の下方で上下方向に変位することでその弁座口33との間の開度を調整可能な弁体31と、ダイヤフラム50における受圧部51の上下方向の変位をその弁体31の上下方向の変位として伝達する軸部32とからなる。 That is, the valve mechanism 30 includes a valve seat opening 33 formed between the primary-side flow path 22 and the secondary-side flow path 23, its seat by vertically displaced below the valve seat opening 33 a valve body 31 opening degree adjustable between mouth 33, consisting of the shaft portion 32 for transmitting the vertical displacement of the pressure receiving portion 51 of the diaphragm 50 as a vertical displacement of the valve body 31.
また、上記軸部32の側部には、上記二次側圧力室20と一次側流路22とを仕切るための可撓膜26が設けられている。 Further, on the side of the shaft portion 32, the flexible membrane 26 for separating the said secondary pressure chamber 20 and the primary-side flow path 22 is provided.

そして、ダイヤフラム50の受圧部51が二次側圧力室20側から均圧室10側に向けて即ち上方に向けて変位することで、弁体31が上方に変位して弁座口33と弁体31との間の開度が減少し、一次側流路22から二次側流路23へのガスの流量が減少され、逆に、同受圧部51が均圧室10側から二次側圧力室20側に向けて即ち下方に向けて変位することで、弁体31が下方に変位して弁座口33と弁体31との間の開度が増加し、一次側流路22から二次側流路23へのガスの流量が増加される。 Then, by the pressure receiving portion 51 of the diaphragm 50 is displaced toward and that is upwardly directed from the secondary side pressure chamber 20 side equalizing pressure chamber 10 side, the valve body 31 is displaced upward valve seat opening 33 and the valve and opening decrease between the body 31 is reduced the flow rate of the gas from the primary side passage 22 to the secondary-side flow path 23, on the contrary, the secondary side from the pressure receiving portion 51 uniform pressure chamber 10 side by displacing oriented i.e. downward toward the pressure chamber 20 side, the opening degree is increased between the valve seat opening 33 and the valve body 31 the valve body 31 is displaced downward, from the primary side passage 22 flow rate of gas to the secondary-side flow path 23 is increased.

上部ケーシング1の内部には、バルブ機構30の開度を増加させる方向に付勢する付勢機構として、ダイヤフラム50の受圧部51を均圧室10側から二次側圧力室20側に向けて付勢する形態で配置されたばね部材40が設けられている。 Inside the upper casing 1, as a biasing mechanism for biasing the direction of increasing the opening degree of the valve mechanism 30, and the pressure receiving portion 51 of the diaphragm 50 from the equalizing chamber 10 side toward the secondary pressure chamber 20 side spring member 40 arranged in the form of biasing is provided.

更に、このばね部材40の上端部は、上部ケーシング1に対して上下方向に変位自在に設けられたばね調整部41に当接されており、このばね調整部41が上下方向に調整されることで、ばね部材40のばね長さが変更されてばね部材40の受圧部51に対する付勢力が調整される。 Furthermore, the upper end portion of the spring member 40 is abutted to the spring adjuster 41 which is provided displaceably in the vertical direction with respect to the upper casing 1, by the spring adjuster 41 is adjusted in the vertical direction , the biasing force the spring length of the spring member 40 is changed relative to the pressure receiving portion 51 of the spring member 40 is adjusted.

次に、整圧器100による二次側流路23の圧力を安定させる性能、所謂整圧性能について説明を加える。 Next, the performance to stabilize the pressure by pressure regulators 100 secondary-side flow path 23, the so-called Sei圧 performance added description.
バルブ機構30の軸部32にかかる下向きの力の大きさは、受圧部51に対して下向きにかかるばねの付勢力と、可撓膜26に対して下向きにかかる二次側圧力室20の圧力による力との合計となる。 The size of the downward force exerted on the shaft portion 32 of the valve mechanism 30 includes a biasing force of the spring according to the downward against the pressure receiving portion 51, the pressure in the secondary pressure chamber 20 according to downward relative to the flexible membrane 26 the sum of the force by. 一方、同軸部32にかかる上向きの力の大きさは、受圧部51に対して上向きにかかる二次側圧力室20の圧力による力と、可撓膜26に対して上向きにかかる一次側流路22の圧力による力との合計となる。 On the other hand, the magnitude of the upward force exerted on the coaxial portion 32, and the pressure force of such secondary pressure chamber 20 upward with respect to the pressure receiving portion 51, the primary-side flow path according to the upward against the flexible membrane 26 22 is the sum of the force due to the pressure of.

そして、整圧器100は、二次側流路23の圧力が略設定圧力となるときには、バルブ機構30の軸部32にかかる上向きの力と下向きの力とが略同等となって、軸部32が変位せずに安定して、バルブ機構30の開度及びガスGの流量が安定し、結果、二次側流路23の圧力が設定圧力に安定する。 The pressure regulators 100, when the pressure of the secondary-side flow path 23 becomes substantially set pressure, so the upward force and downward force exerted on the shaft portion 32 of the valve mechanism 30 is substantially equal to, the shaft portion 32 There stably without displacement, the flow rate of the opening and the gas G of the valve mechanism 30 is stabilized, that the pressure of the secondary-side flow path 23 is stabilized at the set pressure.

また、二次側流路23の圧力が設定圧力よりも大きくなった場合には、バルブ機構30の軸部32にかかる上向きの力が下向きの力に打ち勝って、軸部32が上方に変位し、バルブ機構30の開度及びガスGの流量が減少されて、結果、二次側流路23の圧力が設定圧力となるように低下される。 Further, when the pressure of the secondary-side flow path 23 is larger than the set pressure, the upward force exerted on the shaft portion 32 of the valve mechanism 30 overcomes the downward force, the shaft portion 32 is displaced upward , the flow rate of the opening and the gas G of the valve mechanism 30 is reduced, the result is reduced such that the pressure of the secondary flow path 23 becomes the set pressure.
逆に、二次側流路23の圧力が設定圧力よりも小さくなった場合には、バルブ機構30の軸部32にかかる下向きの力が上向きの力に打ち勝って、軸部32が下方に変位し、バルブ機構30の開度及びガスGの流量が増加されて、結果、二次側流路23の圧力が設定圧力となるように上昇される。 Conversely, when the pressure of the secondary-side flow path 23 is smaller than the set pressure, the downward force exerted on the shaft portion 32 of the valve mechanism 30 overcomes the upward force, the displacement shaft portion 32 downward and the flow rate of the opening and the gas G of the valve mechanism 30 is increased, the result is raised to the pressure of the secondary-side flow path 23 becomes the set pressure.

また、この整圧器100には、二次側圧力室20の過剰な圧力上昇を回避するべく、その過剰に上昇した圧力を均圧室10に放出するリリーフ機構が設けられており、その具体的構成について説明を加える。 Further, this pressure regulators 100, in order to avoid excessive pressure rise in the secondary pressure chamber 20, and a relief mechanism is provided for releasing the excessively increased pressure to the equalizing chamber 10, the specific configuration for adding a description.
かかるリリーフ機構は、バルブ機構30の軸部32がダイヤフラム50の中央部に形成された開口部55を貫通する形態で配置され、更に、その軸部32に設けられたリリーフ弁部34が、受圧部51の下面に対して下方側から当接するように構成されている。 Such relief mechanism is disposed in the form of the shaft portion 32 of the valve mechanism 30 through an opening 55 formed in a central portion of the diaphragm 50, furthermore, it is a relief valve 34 provided on the shaft portion 32, the pressure receiving It is configured to abut the lower side of the lower surface of the section 51.
更に、上記バルブ機構30の軸部の均圧室10側に上下方向に変位自在に設けられたリリーフばね調整部36が設けられ、このリリーフ弁部34を上記開口部55側に付勢するためのリリーフばね部材35が、このリリーフばね調整部36と受圧部51の上面との間に圧縮状態で介装されている。 Furthermore, the valve mechanism 30 relief spring adjuster 36 which is provided displaceably in the vertical direction evenly chamber 10 side of the shaft portion is provided with, for urging the relief valve portion 34 to the 55 side the opening relief spring member 35 has been interposed in a compressed state between the upper surface of the relief spring adjuster 36 and the pressure receiving portion 51.

よって、二次側流路23の圧力が過剰に上昇すると、二次側圧力室20の過剰な圧力上昇に伴って、先ずバルブ機構30が全閉状態となった後に、二次側圧力室20の圧力が上記リリーフばね部材35の付勢力に押し勝って、リリーフ弁部34に対してダイヤフラム50の受圧部51が更に上昇することで、上記開口部55が開放され、二次側圧力室20の過剰に上昇した圧力が均圧室10側に放出されることになる。 Therefore, the pressure of the secondary-side flow path 23 is excessively increased, with the excessive pressure rise in the secondary pressure chamber 20, first after the valve mechanism 30 becomes the fully closed state, the secondary pressure chamber 20 winning pressing force of the biasing force of the relief spring member 35, by the pressure receiving portion 51 of the diaphragm 50 is further raised with respect to the relief valve 34, the opening 55 is opened, the secondary-side pressure chamber 20 excessively increased pressure is to be released evenly chamber 10 side.
尚、本実施形態では、上記リリーフ機構を設けた例について説明したが、別にこのリリーフ機構を省略しても構わない。 In the present embodiment has described the example in which the relief mechanism, may be separately omit this relief mechanism.

〔整圧器の処理方法〕 [Integer divider of the processing method]
(第1処理方法) (The first processing method)
先ず、上記のように構成された整圧器100に対して使用前に実行される処理方法として、特に長期使用による気密性能の低下を抑制するための第1処理方法について説明する。 First, as the processing method to be executed prior to use with respect to the pressure regulators 100 configured as described above will be described first processing method, in particular for inhibiting the degradation of airtightness caused by long-term use.

第1処理方法では、これまで説明してきた整圧器100を組み立てた状態、即ち、ダイヤフラム50の挟持部52が上部ケーシング1と下部ケーシング2とのフランジ接続部3aに圧縮状態で挟持された状態で、設定温度に加熱して一定時間保持する保持工程を実行する。 In the first processing method, heretofore the assembled pressure regulators 100 have been described, i.e., in a state where the clamping portion 52 of the diaphragm 50 is sandwiched in a compressed state to the flange connecting portion 3a of the upper casing 1 and lower casing 2 executes holding step of holding a predetermined time and heating to the set temperature.
すると、挟持部52の外表面が夫々のフランジ面1a,2aに圧着された状態で若干塑性変形して良好に密着し、更には、上記挟持部52の圧縮永久ひずみが小さいことから、その復元力の低下が極力抑制されているので、挟持部52の夫々のフランジ面1a,2aに対する密着性が一層向上され、結果、整圧器100のフランジ接続部3aにおける気密性能が向上される。 Then, the outer surface of the clamping portion 52 is slightly plastically deformed while being crimped flange surface 1a of each, in 2a and favorably adhered, further, since the compression set of the pinching portion 52 is small, the restoration since reduction in force is suppressed as much as possible, each of the flange surface 1a of the sandwiching portion 52, adhesion to 2a is further improved, the result, airtightness in the flange connection portion 3a of the pressure regulators 100 can be improved.
また、Oリング56についても、上記挟持部52と同様に、圧縮永久ひずみが小さい材料で形成すれば、フランジ接続部3aにおける気密性能が一層向上される。 Also, the O-ring 56, similarly to the sandwiching section 52, be formed by compression set is small material, airtightness in the flange connection 3a is further enhanced.

例えば、図3に示すように、上記保持工程における加熱温度を50℃とした場合には、この保持工程を開始してからの保持時間を150時間程度以上とすることで、その気密性能が極めて向上する。 For example, as shown in FIG. 3, when the heating temperature in the holding step was 50 ° C., by the retention time from the start of the holding step and above about 150 hours, the airtightness is extremely improves. 一方、上記保持工程における加熱温度を90℃とした場合には、上記のように50℃とした場合と比較して、保持時間を10時間程度以上と比較的短い保持時間で、その気密性能が極めて向上される。 On the other hand, in case of the 90 ° C. The heating temperatures at the holding step, as compared with the case of the so 50 ° C. As described above, the holding time in a relatively short retention time above about 10 hours, its airtightness It is extremely improved.
尚、この保持工程において、整圧器100を加熱せずに室温で保持した場合には、殆ど変化することなく、あえて言うなら、挟持部52の圧縮永久ひずみや劣化等により徐々に低下する。 Note that in this holding step, when held at room temperature without heating the pressure regulators 100, without changing most Suffice it to say, gradually decreases due to compression set and deterioration of the sandwiching portion 52.
尚、図3において、整圧性能は、フランジ接続部3aにおいて二次側圧力室20から外部にガスが漏洩することができる二次側圧力室20の上限界圧力として求められている。 In FIG. 3, Sei圧 performance is sought as a top limit pressure of the secondary pressure chamber 20 which can be a gas from the secondary side pressure chamber 20 to the outside at the flange connection 3a leaks.

したがって、組み立てた状態の整圧器100に対して使用前に上記のような処理方法を実行することにより、その後長期にわたって使用しても、挟持部52の夫々のフランジ面1a,2aに対する密着性を良好なものとして気密性能の低下を抑制して良好な性能を確保することができる整圧器が製造される。 Therefore, by executing the above-described processing method before use with pressure regulators 100 of the assembled state, then be used for a long time, each of the flange surface 1a of the clamping portion 52, the adhesion to 2a pressure regulators that can ensure good performance by suppressing deterioration of airtightness as good is manufactured.

尚、この第1処理方法においては、上記整圧器100の付勢機構がばね部材40である必要はなく、例えば、均圧室10の圧力を上昇させたり、ダイヤフラム50の上面に重りを設けるなど、別の付勢機構を設けても構わない。 Incidentally, in this first processing method, the biasing mechanism of the pressure regulators 100 are not necessarily the spring member 40, for example, or to increase the pressure in the equalizing chamber 10, the upper surface of the diaphragm 50, such as providing the weight , it may be provided with a separate biasing mechanism.

(第2処理方法) (Second processing method)
次に、上記のように構成された整圧器100に対して使用前に実行される処理方法として、特に長期使用による整圧性能の低下を抑制するための第2処理方法について説明する。 Next, a processing method that is performed prior to use with respect to the pressure regulators 100 configured as described above will be described a second processing method, in particular for suppressing the lowering of Sei圧 performance long-term use.

第2処理方法では、これまで説明してきた整圧器100を組み立てた状態、即ち、ばね部材40をバルブ機構30の開度を増加させる方向に付勢すべく圧縮状態で本体ケーシング3内に設置した状態で、一定時間保持する保持工程を実行し、更に、この保持工程を実行した後に、ばね部材40の付勢力を調整する調整工程を実行する。 In the second processing method, heretofore the assembled pressure regulators 100 have been described, i.e., installed in the main body casing 3 in a compressed state so as to bias the spring member 40 in the direction of increasing the opening degree of the valve mechanism 30 state, perform the holding step of holding a predetermined time, further, after performing this holding step, performing an adjustment step of adjusting the biasing force of the spring member 40.

即ち、上記保持工程では、ばね部材40が圧縮状態で保持されることから、そのばね部材40に比較的大きな初期へたりが発生し、その後の使用時にばね部材40に発生するへたりが低減される。 That is, in the holding step, the spring member 40 from being held in a compressed state, occurs or relatively to the large initial to the spring member 40, is reduced sag occurs in the spring member 40 for subsequent use that.
そして、その保持工程の後に、上記調整工程において、ばね調整部41の上下方向の位置を調整して、ばね部材40の受圧部51に対する付勢力を調整することで、その後長期にわたって使用しても、ばね部材40に発生するへたりが低減されていることから、その調整した付勢力が良好に維持され、整圧性能の低下が抑制される。 Then, after that holding step, in the adjustment process, by adjusting the vertical position of the spring adjuster 41, by adjusting the biasing force against the pressure receiving portion 51 of the spring member 40, then be used for a long time , since the sag occurring in the spring member 40 is reduced, the biasing force that the adjustment is satisfactorily maintained, lowering of Sei圧 performance is suppressed.

例えば、ばね部材40はへたりによりその付勢力が低下するのであるが、図4に示すように、そのばね部材40の初期時に対する付勢力の低下量は、保持工程を開始してからの保持時間を20年(約175200時間)とした場合に0.35N程度となるのに対して、保持時間を500時間とした場合では0.18N程度、保持時間を2000時間とした場合では0.25N程度となる。 For example, although the urging force by the sag spring member 40 is being lowered, as shown in FIG. 4, the amount of decrease in the biasing force to the initial time of the spring member 40 is held from the start of the holding step the time whereas a 0.35N about the case of the 20 years (about 175,200 hours), about 0.18N in the case where the retention time of 500 hours, in the case where the retention time was 2000 hours 0.25N the degree. 即ち、保持時間を500時間程度、好ましくは2000時間程度とすることで、そのばね部材40の20年間で発生するへたりの約半分程度を発生させることができ、その後の使用において、ばね部材40に発生するへたりが低減される。 That is, about 500 hours retention time, preferably by about 2000 hours, can generate about half the permanent set that occurs in 20 years that the spring member 40, in the subsequent use, the spring member 40 It is reduced or to occur.

また、この第2処理方法における保持工程で、整圧器を設定温度に加熱すれば、上記ばね部材40のへたりの発生状態はあまり変化しないものの、上述した第1処理方法と同様に、挟持部52の夫々のフランジ面1a,2aに対する密着性を向上させて、気密性能を向上させることができる。 Further, in the holding step in the second processing method, by heating the pressure regulators to the set temperature, although occurrence of sag of the spring member 40 does not change much, as in the first processing method described above, clamping portion 52 of each of the flange surface 1a, to improve the adhesion to 2a, thereby improving the airtightness.

本発明に係る整圧器及びその処理方法は、長期にわたって使用しても、上記のような気密性能の低下や整圧性能の低下を抑制して、良好な性能を確保することができる整圧器及びその処理方法として有効に利用可能である。 Pressure regulators and a processing method thereof according to the present invention may be used for a long time, and suppress a decrease in the degradation or Sei圧 performance of airtightness as described above, pressure regulators can ensure good performance and it is effectively available as a treatment method.

本発明に係る整圧器の概略構成図 Schematic diagram of a pressure regulators according to the present invention 整圧器の部分断面図 Partial cross-sectional view of the pressure regulators 保持時間と気密性能の関係を示すグラフ図 Graph showing the relationship between the retention time and airtightness 保持時間とばね部材の付勢力の変化量との関係を示すグラフ図 Graph showing the relationship between the amount of change in the urging force of the retention time and the spring member

符号の説明 DESCRIPTION OF SYMBOLS

1:上部ケーシング2:下部ケーシング3:本体ケーシング3a:フランジ接続部10:均圧室20:二次側圧力室22:一次側流路23:二次側流路30:バルブ機構40:ばね部材(付勢手段) 1: upper casing 2: the lower casing 3: body casing 3a: flange connection 10: Hitoshi chamber 20: the secondary pressure chamber 22: primary flow channel 23: secondary-side flow path 30: valve mechanism 40: spring member (biasing means)
50:ダイヤフラム51:受圧部52:挟持部100:整圧器 50: Diaphragm 51: pressure receiving portion 52: clamping unit 100: pressure regulators

Claims (5)

  1. 内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器であって、 A body casing and a lower casing formed by flange connections upper casing and inside the secondary pressure chamber is formed inside the equalizing chamber is formed, and said the equalizing chamber said secondary pressure chamber defining diaphragm and the secondary-side flow channel communicating with the secondary pressure chamber from the primary flow path to the flange connection consisting of clamping portion and sandwiched in a compressed state between the pressure receiving portion and the upper casing and the lower casing to a valve mechanism for opening to reduce the flow rate of the gas adjustable and the pressure receiving portion of the diaphragm from the secondary pressure chamber side to the more displaced toward the equalizing chamber side, an opening degree of the valve mechanism a pressure regulators provided with a biasing mechanism for biasing a direction of increasing,
    前記ダイヤフラムが、前記挟持部を前記受圧部よりも圧縮永久ひずみが小さいゴム材料で形成してなる整圧器。 It said diaphragm, pressure regulators obtained by forming the clamping portion of a rubber material compression set is less than the pressure receiving portion.
  2. 前記フランジ接続部の前記ダイヤフラムの挟持部よりも外側に、Oリングによりシールされるシール部を備えた請求項1に記載の整圧器。 Outside the clamping portion of the diaphragm of the flange connection, pressure regulators according to claim 1 having a seal portion to be sealed by the O-ring.
  3. 内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器の使用前に実行される処理方法であって、 A body casing and a lower casing formed by flange connections upper casing and inside the secondary pressure chamber is formed inside the equalizing chamber is formed, and said the equalizing chamber said secondary pressure chamber defining diaphragm and the secondary-side flow channel communicating with the secondary pressure chamber from the primary flow path to the flange connection consisting of clamping portion and sandwiched in a compressed state between the pressure receiving portion and the upper casing and the lower casing to a valve mechanism for opening to reduce the flow rate of the gas adjustable and the pressure receiving portion of the diaphragm from the secondary pressure chamber side to the more displaced toward the equalizing chamber side, an opening degree of the valve mechanism a processing method that is performed prior to the use of pressure regulators provided with a biasing mechanism for biasing a direction of increasing,
    前記整圧器が請求項1又は2に記載の整圧器として構成され、 The pressure regulators are configured as pressure regulators according to claim 1 or 2,
    前記整圧器を組み立てた状態で設定温度に加熱して一定時間保持する保持工程を実行することを特徴とする処理方法。 Processing method and executes a holding step of holding a predetermined time and heating the set temperature in the assembled state of the pressure regulators.
  4. 内部に均圧室が形成される上部ケーシングと内部に二次側圧力室が形成される下部ケーシングとをフランジ接続してなる本体ケーシングと、前記均圧室と前記二次側圧力室とを区画する受圧部と前記上部ケーシングと前記下部ケーシングとのフランジ接続部に圧縮状態で挟持される挟持部とからなるダイヤフラムと、一次側流路から前記二次側圧力室に連通する二次側流路へのガスの流量を調整可能且つ前記ダイヤフラムの受圧部が前記二次側圧力室側から前記均圧室側に向けて変位するほど開度が減少するバルブ機構と、前記バルブ機構の開度を増加させる方向に付勢する付勢機構とを備えた整圧器の使用前に実行される処理方法であって、 A body casing and a lower casing formed by flange connections upper casing and inside the secondary pressure chamber is formed inside the equalizing chamber is formed, and said the equalizing chamber said secondary pressure chamber defining diaphragm and the secondary-side flow channel communicating with the secondary pressure chamber from the primary flow path to the flange connection consisting of clamping portion and sandwiched in a compressed state between the pressure receiving portion and the upper casing and the lower casing to a valve mechanism for opening to reduce the flow rate of the gas adjustable and the pressure receiving portion of the diaphragm from the secondary pressure chamber side to the more displaced toward the equalizing chamber side, an opening degree of the valve mechanism a processing method that is performed prior to the use of pressure regulators provided with a biasing mechanism for biasing a direction of increasing,
    前記付勢手段がばね部材からなり、 It said biasing means comprises a spring member,
    前記整圧器を組み立てた状態で一定時間保持する保持工程を実行し、 Run the holding step of holding a predetermined time in a state of assembling the pressure regulators,
    前記保持工程を実行した後に、前記ばね部材の付勢力を調整する調整工程を実行することを特徴とする処理方法。 Processing method after performing the holding step, and executes the adjustment process for adjusting the biasing force of the spring member.
  5. 前記保持工程において、前記整圧器を設定温度に加熱する請求項4に記載の処理方法。 In the holding step, the processing method according to claim 4 for heating the pressure regulators to the set temperature.
JP2005079391A 2005-03-18 2005-03-18 Pressure governor and processing method Pending JP2006260385A (en)

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