JP2012031951A - Diaphragm barrier membrane - Google Patents
Diaphragm barrier membrane Download PDFInfo
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- JP2012031951A JP2012031951A JP2010172859A JP2010172859A JP2012031951A JP 2012031951 A JP2012031951 A JP 2012031951A JP 2010172859 A JP2010172859 A JP 2010172859A JP 2010172859 A JP2010172859 A JP 2010172859A JP 2012031951 A JP2012031951 A JP 2012031951A
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- 230000004888 barrier function Effects 0.000 title abstract 7
- 239000012528 membrane Substances 0.000 title abstract 7
- 239000012263 liquid product Substances 0.000 claims abstract description 9
- 230000008961 swelling Effects 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000005452 bending Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Abstract
Description
本発明はダイヤフラム隔膜に係り、特に、各種の液体製品を製造し処理するサニタリープラントにおける管路の弁栓部に使用されるダイヤフラム隔膜に関する。 The present invention relates to a diaphragm diaphragm, and more particularly to a diaphragm diaphragm used for a valve plug portion of a pipe line in a sanitary plant that manufactures and processes various liquid products.
一般に、液体食品又は医薬品を製造するサニタリープラントにおいては、殺菌工程以後の工程にあっては、製品の二次的な細菌汚染を防止するために、液体通路に配設された弁栓部に隔膜が用いられている。 Generally, in a sanitary plant that manufactures liquid foods or pharmaceuticals, in the process after the sterilization process, in order to prevent secondary bacterial contamination of the product, a diaphragm is provided in the valve plug portion disposed in the liquid passage. Is used.
このような弁栓部に使用される弁栓装置は、一方の管路と他方の管路との間の接合部又は、上方管路と下方管路との間に設けられた連通路に、弁座部を設け、上記弁座部の下部内周側部に密接しうる弁体と、上記管路内から上方へ突出して配置され、上記弁体に接合された弁軸とを備え、上記弁軸が弁開閉駆動機構に接続され、上記弁開閉駆動機構により弁体が駆動されて上記弁座部を閉止又は開放されるように構成されている。 The valve stopper device used for such a valve stopper part is a joint part between one pipe line and the other pipe line, or a communication path provided between the upper pipe line and the lower pipe line, A valve body that is provided with a valve seat portion and can be in close contact with a lower inner peripheral side portion of the valve seat portion; and a valve shaft that protrudes upward from the inside of the pipe line and is joined to the valve body, and The valve shaft is connected to a valve opening / closing drive mechanism, and the valve body is driven by the valve opening / closing drive mechanism to close or open the valve seat portion.
このように構成された弁栓装置にあっては、上記弁軸は上記管路から上方へ突出して大気開放状態で配置されていることから、上記弁軸を上下動させた場合には、弁軸が大気に接触して大気中の菌が付着し、その後、弁座部を閉止するために下降した場合には管路内を流通する液体製品に触れることから、上記菌により２次汚染される可能性があり、弁栓部においてはこのような弁軸の上下動による液体製品への２次汚染を確実に防止する必要がある。 In the valve plug device configured as described above, the valve shaft protrudes upward from the pipe line and is disposed in an open air state. Therefore, when the valve shaft is moved up and down, When the shaft comes into contact with the atmosphere and bacteria in the atmosphere adhere to it, and then descends to close the valve seat, it touches the liquid product circulating in the pipeline, so it is contaminated by the bacteria. In the valve plug portion, it is necessary to reliably prevent such secondary contamination of the liquid product due to the vertical movement of the valve shaft.
このような観点から、一般に、上記弁軸の下端部にバックプレート部を介して隔膜を設け、弁軸の下端部と弁栓部のボディ接合部との間を被覆し、弁軸側と管路内部とを隔離しうるように構成されている。 From this point of view, generally, a diaphragm is provided at the lower end of the valve shaft via a back plate portion, covering the lower end portion of the valve shaft and the body joint portion of the valve plug portion, and connecting the valve shaft side and the tube. It is comprised so that it can isolate from the inside of a road.
このような隔膜としては、耐久性の観点から、従来よりダイヤフラム隔膜が使用されてきており、図５に示すように、このダイヤフラム隔膜７０は、例えば、全体略逆截頭円錐台形状に形成され、周縁上端部には固定部７１が形成されると共に、中央下部には弁軸貫通孔部７２が開設され、上記固定部７１と上記貫通孔７２との間には均一な厚さ寸歩の斜面部７３が形成されている。 As such a diaphragm, a diaphragm diaphragm has been conventionally used from the viewpoint of durability. As shown in FIG. 5, this diaphragm diaphragm 70 is formed, for example, in a substantially inverted truncated truncated cone shape. A fixed portion 71 is formed at the upper end of the periphery, and a valve shaft through-hole portion 72 is opened at the center lower portion. A uniform thickness step is formed between the fixed portion 71 and the through-hole 72. A slope portion 73 is formed.
このようなダイヤフラム隔膜７０にあっては、弁軸が駆動され弁体が上方へ移動し、弁座を開放する際には、管路内を流通する液体製品の圧力損失を低減するためには弁体のストロークを大きくとる必要があり、そのためには、ダイヤフラム隔膜７０も弁体の大きなストロークに追随して大きく屈曲できるようにする必要がある。
この場合、従来の隔膜７０にあっては、弁体の大ストロークに対応できるようにするためには、上記斜面部７３の傾斜角度αを大きくする必要がある。
In such a diaphragm 70, when the valve shaft is driven to move the valve body upward and the valve seat is opened, in order to reduce the pressure loss of the liquid product flowing through the pipe line, It is necessary to take a large stroke of the valve body. For this purpose, the diaphragm 70 needs to be able to be bent greatly following the large stroke of the valve body.
In this case, in the conventional diaphragm 70, in order to be able to cope with a large stroke of the valve body, it is necessary to increase the inclination angle α of the inclined surface portion 73.
しかしながら、このように斜面部７３の傾斜角度αを大きく形成した場合には、弁体が弁座部開放のために弁軸部により上方へ移動した場合には弁軸部（図示せず）と共に上記弁軸貫通孔部７２も上方へ移動し、その結果、上記貫通孔７２の周縁部７４が大きく上方へ屈曲することから、斜面部７３と貫通孔７２との接合部位である上記周縁部７４付近に大きな応力が作用し、経年時には当該部分の強度が劣化し耐久性が低下することから、斜面部７３の傾斜角度αを余り大きくとることはできず、その結果、弁体の大きなストロークを実現することが困難となる、という不具合があった。 However, when the inclination angle α of the inclined surface portion 73 is formed to be large in this way, when the valve body is moved upward by the valve shaft portion for opening the valve seat portion, together with the valve shaft portion (not shown). The valve shaft through-hole portion 72 also moves upward, and as a result, the peripheral edge portion 74 of the through-hole 72 is greatly bent upward, so that the peripheral edge portion 74 that is a joint portion between the inclined surface portion 73 and the through-hole 72. Since a large stress acts in the vicinity and the strength of the portion deteriorates and the durability decreases with the passage of time, the slope angle α of the slope portion 73 cannot be made too large. As a result, a large stroke of the valve body is caused. There was a problem that it was difficult to realize.
本願発明はこのような従来の不具合を解消するためになされたものであって、弁軸部の上下動により発生する応力に抗して耐久性に富み、弁体の大きなストロークを実現できるダイヤフラム隔膜を提供することにある。 The present invention has been made to solve such a conventional problem, and is a diaphragm diaphragm that is resistant to the stress generated by the vertical movement of the valve stem and has a large durability. Is to provide.
このような課題達成のため、請求項１記載の発明にあっては、液体製品が流通する管路内に設けられた弁座部を閉止又は開放する弁体部に接合された弁軸部の下端部において、弁軸部側と管路内部側とを隔離可能に被覆する隔膜本体部と、上記隔膜本体部の上端部に形成され、上記弁軸部が内装される弁軸支持部に固定される固定部と、上記隔膜本体部の中央部に形成され、上記弁軸が挿通され、上記弁体部が上記弁座部を閉止した際には上記固定部よりも下方に配置される弁軸貫通孔部とを備えたダイヤフラム隔膜であって、上記隔膜本体部において、弁軸貫通孔の周囲には下方へ膨出する第一の膨出部が形成されると共に、上記第一の膨出部の上方には上方へ膨出する第二の膨出部が形成されたことを特徴とする。 In order to achieve such a problem, in the invention described in claim 1, the valve shaft portion joined to the valve body portion for closing or opening the valve seat portion provided in the conduit through which the liquid product flows is provided. At the lower end, the diaphragm main body that covers the valve shaft side and the inner side of the conduit in a separable manner, and the upper end of the diaphragm main body are fixed to the valve shaft support that is internally provided with the valve shaft. And a valve formed below the fixed portion when the valve shaft is inserted and the valve body portion closes the valve seat portion. A diaphragm having a shaft through hole, wherein a first bulging portion bulging downward is formed around the valve shaft through hole in the diaphragm main body, and the first bulging is formed. A second bulging portion that bulges upward is formed above the protruding portion.
従って、請求項１記載の発明に係るダイヤフラム隔膜にあっては、弁体部が弁座の閉止状態から弁軸駆動部の作動により弁軸が上方へ駆動されることにより弁座から離間し、弁体部が完全に管路内の流路を開放した場合には、上記弁軸挿通孔部も追随して上方へ移動し、上記隔膜本体部は上方へ大きく折曲されることになるが、上記第一の膨出部が折曲された場合に発生する応力を受ける。 Therefore, in the diaphragm diaphragm according to the invention of claim 1, the valve body portion is separated from the valve seat by being driven upward by the operation of the valve shaft driving portion from the closed state of the valve seat, When the valve body part completely opens the flow path in the pipe line, the valve shaft insertion hole part also follows and moves upward, and the diaphragm main body part is greatly bent upward. The stress generated when the first bulging portion is bent is received.
請求項２記載の発明にあっては、全体逆截頭円錐台形状に形成され、上記隔膜本体部の厚さ寸法は均一に形成され、上記第一の膨出部及び第二の膨出部は上記隔膜本体部を膨出形成することにより構成され、上記第一の膨出部は、上記弁体部が上記弁座部から離間して上昇し、隔膜本体部が変形し最大の応力が作用した状態の形状と同一に形成され、上記弁軸貫通孔部は、上記隔膜本体部の厚さ寸法よりも大きな厚さ寸法に形成され、上記第一の膨出部は上記弁軸貫通孔部に連続して形成され、上記第二の膨出部は上記第一の膨出部に連続して形成されると共に、上記第二の膨出部と上記上端固定部との間は平坦な斜面部が形成され、上記第二の膨出部は、弁体が弁座部を閉止している状態においては裏面側に配設されたバックプレートに当接することを特徴とする。 In the invention according to claim 2, it is formed in an overall inverted truncated truncated cone shape, and the thickness of the diaphragm main body is uniformly formed, and the first bulge and the second bulge Is formed by bulging and forming the diaphragm main body, and the first bulged portion is raised with the valve body portion spaced apart from the valve seat portion, and the diaphragm main body portion is deformed and the maximum stress is generated. The valve shaft through-hole portion is formed to have a thickness dimension larger than the thickness dimension of the diaphragm main body portion, and the first bulge portion is formed in the valve shaft through-hole portion. The second bulging portion is formed continuously with the first bulging portion, and a flat space is formed between the second bulging portion and the upper end fixing portion. A slope portion is formed, and the second bulge portion is in contact with a back plate disposed on the back side in a state where the valve body closes the valve seat portion. Characterized in that it.
従って、請求項２記載の発明にあっては、上記弁体部が弁座部から離間して上昇し、その結果、隔膜本体部が大きく変形し、厚さ方向に最大の応力が作用した場合であっても、上記第一の膨出部は上記弁体部が上記弁座部から離間して上昇し、隔膜本体部が変形し最大の応力が作用した状態の形状と同一に形成されていることから、弁軸貫通孔の周囲の部位における隔膜本体部の厚さ方向における変形を抑止することができる。 Therefore, in the invention according to claim 2, when the valve body part rises away from the valve seat part, and as a result, the diaphragm main body part is greatly deformed, and the maximum stress acts in the thickness direction. Even so, the first bulging part is formed in the same shape as the state in which the valve body part rises away from the valve seat part, the diaphragm main body part is deformed and the maximum stress is applied. Therefore, the deformation in the thickness direction of the diaphragm main body at the portion around the valve shaft through hole can be suppressed.
また、上記第二の膨出部は、弁体が弁座部を閉止している状態においては裏面側に配設されたバックプレートに当接することから、上記のように単に第一の膨出部を形成した場合には、バックプレートから離間してしまい、隔膜自体で形状を支えねばならないが、本請求項記載の発明にあっては、上記第一の膨出部の周縁部位に応力が集中した場合であっても、当該応力を支持することができる。 Further, since the second bulging portion abuts on the back plate disposed on the back surface side in a state where the valve body closes the valve seat portion, the first bulging portion is simply as described above. When the part is formed, the part is separated from the back plate and the shape of the diaphragm itself must be supported, but in the invention according to the present invention, stress is applied to the peripheral part of the first bulge part. Even when concentrated, the stress can be supported.
請求項３記載の発明に係るダイヤフラム隔膜にあっては、上記第一の膨出部及び第二の膨出部は、全周に亘ってリング状に形成されていることを特徴とする。 In the diaphragm according to the invention described in claim 3, the first bulging portion and the second bulging portion are formed in a ring shape over the entire circumference.
請求項４記載の発明に係るダイアフラム隔膜にあっては、上記弁軸貫通孔部は短円筒状に形成され、上記第一の膨出部は上記弁軸貫通孔部の軸方向上端部に接合され、上記弁軸貫通孔部の軸方向下端部に向かって膨出するように形成され、上記弁軸貫通孔部の側面部と上記第一の膨出部の上面傾斜部との間は５０度の角度であって、上記弁軸貫通孔部の上端部と上記第一の膨出部の裏面部との間は４５度の角度に形成されていることを特徴とする。 In the diaphragm according to the fourth aspect of the present invention, the valve shaft through-hole portion is formed in a short cylindrical shape, and the first bulge portion is joined to the axial upper end portion of the valve shaft through-hole portion. And formed so as to bulge toward the lower end in the axial direction of the valve shaft through-hole portion, and the space between the side surface portion of the valve shaft through-hole portion and the upper surface inclined portion of the first bulge portion is 50. The angle between the upper end portion of the valve shaft through hole portion and the back surface portion of the first bulge portion is an angle of 45 degrees.
請求項５記載の発明に係るダイアフラム隔膜にあっては、上記弁軸貫通孔部の上面部と上記第二の膨出部の下面部の下方傾斜部との間は７０度の角度であると共に、上記第二の膨出部の上方傾斜部との間は２０度の角度に形成されていることを特徴とする。 In the diaphragm according to the fifth aspect of the invention, the angle between the upper surface portion of the valve shaft through-hole portion and the downward inclined portion of the lower surface portion of the second bulge portion is 70 degrees. The second bulging portion is formed at an angle of 20 degrees with respect to the upper inclined portion.
請求項１、４及び５記載の発明にあっては、弁体部が弁座部の閉止状態から弁軸駆動部の作動により弁軸が上方へ駆動されることにより弁座部から離間し、弁体部が完全に管路内の流路を開放した場合には、上記弁軸挿通孔部は上方へ移動し、上記隔膜本体部の上記弁軸駆動部の周辺部は上方へ折曲されるが、上記第一の膨出部が折曲された場合に発生する応力を受ける。 In the first, fourth, and fifth aspects of the invention, the valve body portion is separated from the valve seat portion when the valve shaft is driven upward by the operation of the valve shaft drive portion from the closed state of the valve seat portion, When the valve body part completely opens the flow path in the pipeline, the valve shaft insertion hole part moves upward, and the peripheral part of the valve shaft drive part of the diaphragm main body part is bent upward. However, it receives stress generated when the first bulging portion is bent.
その結果、従来のように隔膜本体部が均一の厚さ寸法に形成されている場合とは異なり、上記応力は上記第一の膨出部により受け止められることから、弁体部の大きな上下動のストロークに対応でき、計年時においても耐久性を有するダイヤフラム隔膜を提供することができる。 As a result, unlike the conventional case where the diaphragm main body is formed to have a uniform thickness, the stress is received by the first bulging portion. It is possible to provide a diaphragm diaphragm that can handle strokes and has durability even when measuring time.
請求項２記載の発明にあっては、従って、請求項２記載の発明にあっては、上記弁体部が弁座部から離間して上昇し、その結果、隔膜本体部が大きく変形し、厚さ方向に最大の応力が作用した場合であっても、上記第一の膨出部は上記弁体部が上記弁座部から離間して上昇し、隔膜本体部が変形し最大の応力が作用した状態の形状と同一に形成されていることから、弁軸貫通孔の周囲の部位における隔膜本体部の厚さ方向における変形を抑止することができ、弁軸貫通孔周辺部位の変形により作用する応力の発生を防止することができるため、隔膜本体部の弁軸挿通後部の周縁における強度を向上させることができる。
その結果、従来のダイアフラム隔膜にあっては、数回の作動で凹みが発生し、５万回程度の作動で上記凹み部にクラックが発生していたが、本発明により強度が向上し、１００万回程度の作動あっても、凹みやクラックの発生もないことが確認されている。
Accordingly, in the invention according to claim 2, in the invention according to claim 2, the valve body part rises away from the valve seat part, and as a result, the diaphragm main body part is greatly deformed, Even when the maximum stress is applied in the thickness direction, the first bulging portion rises with the valve body portion spaced apart from the valve seat portion, the diaphragm main body portion is deformed, and the maximum stress is applied. Since it is formed in the same shape as the acted state, deformation in the thickness direction of the diaphragm main body in the region around the valve shaft through-hole can be suppressed, and the deformation is caused by deformation of the region around the valve shaft through-hole. Since the generation | occurrence | production of the stress to prevent can be prevented, the intensity | strength in the periphery of the valve shaft insertion rear part of a diaphragm main-body part can be improved.
As a result, in the conventional diaphragm diaphragm, a dent was generated by several operations, and a crack was generated in the dent portion by an operation of about 50,000 times. It has been confirmed that there are no dents or cracks even after 10,000 operations.
また、上記第二の膨出部は、弁体が弁座部を閉止している状態においては裏面側に配設されたバックプレートに当接することから、単に第一の膨出部を形成した場合には、バックプレートから離間してしまい隔膜自体で形状を支えねばならないことから、上記第一の膨出部の周縁部位に応力が集中し、使用の過程において上記第一の膨出部の周縁部位にクラックが発生する、という事態に至る可能性があるが、本発明においては上記第二の膨出部が形成され、強度が確保されていることから、このような事態を有効に防止することができる。 In addition, the second bulging portion simply forms the first bulging portion because it abuts against the back plate disposed on the back surface side when the valve body closes the valve seat portion. In this case, since the shape is separated from the back plate and the shape of the diaphragm itself must be supported, stress concentrates on the peripheral portion of the first bulging portion, and the first bulging portion of the first bulging portion is used in the process of use. Although there is a possibility that a crack will occur in the peripheral part, in the present invention, the second bulging portion is formed and the strength is ensured, so such a situation is effectively prevented. can do.
請求項３記載の発明にあっては、上記弁軸部の上方への移動に伴い弁体部が上方へ移動した場合には上記弁軸挿通孔は上方へ移動し、上記隔膜本体部の上記弁軸駆動部の周辺部は、上方へ折曲されるが、上記第一の膨出部が、折曲された場合に発生する応力を全周に亘って受けることから、上記弁軸挿通孔部周縁部の強度をより向上させることができる。 In the invention according to claim 3, when the valve body part moves upward with the upward movement of the valve shaft part, the valve shaft insertion hole moves upward, and the diaphragm body part Although the peripheral portion of the valve shaft driving portion is bent upward, the valve shaft insertion hole is provided because the first bulging portion receives the stress generated when it is bent over the entire circumference. The strength of the peripheral portion can be further improved.
以下、本発明に係るダイアフラム隔壁を二重弁栓装置に適用した場合を例に説明する。
図１に示すように、本実施の形態に係る二重弁栓装置１０は、液体製品が流通する上方管路１１及び下方管路１２の間に設けられた連通路１３内には弁座部１４が設けられ、上記弁座部１４の上部に圧接する上方弁体１５と、上記上方弁体１５の下方に同軸上で独立して上下動可能に配設された下方弁体１６とを有している。
Hereinafter, the case where the diaphragm partition according to the present invention is applied to a double valve plug device will be described as an example.
As shown in FIG. 1, the double valve plug device 10 according to the present embodiment has a valve seat portion 14 in a communication passage 13 provided between an upper pipeline 11 and a lower pipeline 12 through which a liquid product flows. And an upper valve body 15 that is pressed against the upper portion of the valve seat portion 14 and a lower valve body 16 that is coaxially and independently arranged vertically movable below the upper valve body 15. ing.
上記上方弁体１５は、上方管路１１を径方向に貫通して配置された上方弁軸部１７を介して弁軸駆動部１８により駆動されると共に、下方弁体１６は上記弁軸部１７内に設けられた下方弁軸部２４により上方弁体１５とは独立して駆動されるように構成されている。 The upper valve body 15 is driven by a valve shaft drive unit 18 via an upper valve shaft portion 17 disposed so as to penetrate the upper pipe 11 in the radial direction, and the lower valve body 16 is driven by the valve shaft portion 17. The upper valve body 15 is configured to be driven independently of the lower valve shaft portion 24 provided therein.
二重弁栓装置１０の弁軸接合部２５の下端部には径方向に膨出して接合固定部２６が形成され、二重弁栓装置１０は上記接合固定部２６を介してクランプ部２７により上方管路１１及び連通路１３に固定されている。
上記接合固定部２６の内方にはバックプレート２８が、上記上方弁軸部１７の下端部に、バックプレート固定部２９により固定されている。
そして、上記のように構成された本実施の形態に係る二重弁栓装置１０において、上記弁軸部１７の下端部には、上記バックプレート２８に当接してダイアフラム隔膜１９が配設されている。
A joint fixing portion 26 is formed by bulging in the radial direction at the lower end portion of the valve shaft joint portion 25 of the double valve plug device 10. The double valve plug device 10 is connected to the upper pipe by the clamp portion 27 via the joint fixing portion 26. It is fixed to the path 11 and the communication path 13.
A back plate 28 is fixed to a lower end portion of the upper valve shaft portion 17 by a back plate fixing portion 29 inside the joint fixing portion 26.
In the double valve plug device 10 according to the present embodiment configured as described above, a diaphragm diaphragm 19 is disposed at the lower end portion of the valve shaft portion 17 in contact with the back plate 28. .
図１及び図２に示すように、ダイアフラム隔膜１９は、弁軸部１７側と上方管路１１内部側とを隔離可能に被覆する隔膜本体部２０と、上記隔膜本体部２０の上端部に形成され、上記弁軸部１７が内装される弁軸支持部としての接合固定部２６に固定される固定部２２と、上記隔膜本体部２０の中央部に形成されて上方弁軸部１７が挿通され、上記上方弁体１５が上記弁座部１４を閉止した際には上記固定部２２よりも下方に配置される弁軸貫通孔部２３とを備えている。 As shown in FIG. 1 and FIG. 2, the diaphragm 19 is formed at the upper end of the diaphragm main body 20 and the diaphragm main body 20 that covers the valve shaft 17 side and the upper pipe 11 inside in a separable manner. The fixed portion 22 fixed to the joint fixing portion 26 as the valve shaft support portion in which the valve shaft portion 17 is housed, and the upper valve shaft portion 17 is inserted through the central portion of the diaphragm main body portion 20. When the upper valve body 15 closes the valve seat portion 14, a valve shaft through hole portion 23 is provided below the fixed portion 22.
図２に示すように、本実施の形態に係るダイアフラム隔膜１９は、上記隔膜本体部２０において、弁軸貫通孔部２３の周囲には、下方へ膨出する第一膨出部３１が形成されると共に上記第一膨出部３１の上方には上方へ膨出する第二膨出部３２が形成されている。
即ち、本実施の形態に係るダイアフラム隔膜１９は、全体逆截頭円錐台形状であって、上記隔膜本体部２０の厚さ寸法は均一に形成され、上記第一膨出部３１及び第二膨出部３２は上記隔膜本体部２０を膨出形成することにより構成され、上記第一膨出部３１及び第二膨出部３２は、全周に亘ってリング状に形成されている。
As shown in FIG. 2, in the diaphragm diaphragm 19 according to the present embodiment, a first bulging portion 31 bulging downward is formed around the valve shaft through hole portion 23 in the diaphragm main body portion 20. In addition, a second bulging portion 32 bulging upward is formed above the first bulging portion 31.
That is, the diaphragm diaphragm 19 according to the present embodiment has an overall inverted truncated frustoconical shape, and the diaphragm body 20 has a uniform thickness, and the first bulge 31 and the second bulge The protruding portion 32 is formed by bulging the diaphragm main body portion 20, and the first bulging portion 31 and the second bulging portion 32 are formed in a ring shape over the entire circumference.
図２及び図３に示すように、上記第一膨出部３１は、上記上方弁体１５が上記弁座部１４から離間して上昇し、その結果、固定部２２が接合固定部２６に固定されていることから、上記弁軸貫通孔部２３は上方弁軸部１７と共に上昇することから、隔膜本体２０は大きく屈曲することとなるが、上記隔膜本体部２０が屈曲変形し最大の応力が作用した状態の形状と同一に形成されている。
上記弁軸貫通孔部２３は短円筒状に形成され、上記第一膨出部３１は上記弁軸貫通孔部２３に隣接して連続して形成され、上記弁軸貫通孔部２３の軸方向上端部３３に接合され、上記弁軸貫通孔部２３の軸方向下端部３４に向かって凸状に膨出するように形成され、上記弁軸貫通孔部２３の側面部３５と上記第一膨出部３１の上面傾斜部３６との間の角度αは５０度であって、上記弁軸貫通孔部２３の下端面部３７と上記第一膨出部の下面傾斜部３８との間の角度Ｂは４５度に形成されている。また、上記下端面部３７と隔膜本体部２０の裏面部との間の角度Ｅは５５度に形成されている。
As shown in FIGS. 2 and 3, in the first bulging portion 31, the upper valve body 15 rises away from the valve seat portion 14, and as a result, the fixing portion 22 is fixed to the joint fixing portion 26. Therefore, the valve shaft through-hole portion 23 rises together with the upper valve shaft portion 17, so that the diaphragm main body 20 is largely bent. However, the diaphragm main body portion 20 is bent and deformed, and the maximum stress is generated. It is formed in the same shape as in the acted state.
The valve shaft through-hole portion 23 is formed in a short cylindrical shape, and the first bulging portion 31 is continuously formed adjacent to the valve shaft through-hole portion 23, and the axial direction of the valve shaft through-hole portion 23 is Joined to the upper end portion 33 and formed so as to protrude in a convex shape toward the lower end portion 34 in the axial direction of the valve shaft through-hole portion 23, the side surface portion 35 of the valve shaft through-hole portion 23 and the first expansion portion are formed. The angle α between the protruding portion 31 and the upper surface inclined portion 36 is 50 degrees, and the angle B between the lower end surface portion 37 of the valve shaft through-hole portion 23 and the lower surface inclined portion 38 of the first bulging portion. Is formed at 45 degrees. Further, the angle E between the lower end surface portion 37 and the back surface portion of the diaphragm main body portion 20 is formed to be 55 degrees.
一方、上記第二膨出部３２と上端の固定部２２との間は平坦斜面部４０が形成され、上記弁軸貫通孔部２３の下端面部３７と上記第二膨出部３２の裏面部の下方傾斜部４１との間の角度は７０度の角度に形成されると共に上記第二膨出部の上方傾斜部４２の水平面に対する角度Ｄは２０度に形成されている。 On the other hand, a flat inclined surface portion 40 is formed between the second bulging portion 32 and the fixing portion 22 at the upper end, and a lower end surface portion 37 of the valve shaft through hole portion 23 and a back surface portion of the second bulging portion 32 are formed. The angle with the downward inclined portion 41 is formed at an angle of 70 degrees, and the angle D of the second inclined portion with respect to the horizontal plane of the upward inclined portion 42 is formed at 20 degrees.
本実施の形態にあっては、上記バックプレート２８の表面部形状は、上記第一膨出部３１の断面形状と同一に形成されると共に、バックプレート固定部２９は第二膨出部３２の上方傾斜部４２の断面形状と同一に形成されており、その結果、図１に示すように、上第一膨出部３１及び第二膨出部３２は、上方弁体１５が弁座部１４を閉止している状態においては上記バックプレート２８に当接している。 In the present embodiment, the shape of the surface portion of the back plate 28 is formed to be the same as the cross-sectional shape of the first bulging portion 31, and the back plate fixing portion 29 is the second bulging portion 32. As shown in FIG. 1, the upper first bulging portion 31 and the second bulging portion 32 are formed so that the upper valve body 15 is the valve seat portion 14. Is in contact with the back plate 28 in a closed state.
以下、本実施の形態に係るダイアフラム隔膜１９の作用について説明する。
図１に示すように、本実施の形態に係るダイアフラム隔膜１９にあっては、上方弁体１５が弁座部１４に圧接して閉止状態にある場合には、ダイアフラム隔膜１９の第一膨出部３１及び第二膨出部３２は、バックプレート２８に密接した状態にあり、ダイアフラム隔膜１９はバックプレート２８により裏面側から支持された状態にある。
Hereinafter, the operation of the diaphragm 19 according to the present embodiment will be described.
As shown in FIG. 1, in the diaphragm diaphragm 19 according to the present embodiment, when the upper valve body 15 is in pressure contact with the valve seat portion 14 and is in the closed state, the first swelling of the diaphragm diaphragm 19 is performed. The part 31 and the second bulging part 32 are in close contact with the back plate 28, and the diaphragm diaphragm 19 is supported from the back side by the back plate 28.
その後、上方弁体１５及び下方弁体１６が弁軸駆動部１８により弁軸部１７を介して駆動され上昇した場合には、ダイアフラム隔膜１９の弁軸貫通孔部２３は弁軸部１７と共に上方へ移動し、隔膜本体部２０は大きく屈曲することとなる。 Thereafter, when the upper valve body 15 and the lower valve body 16 are driven and raised by the valve shaft driving section 18 via the valve shaft section 17, the valve shaft through-hole section 23 of the diaphragm diaphragm 19 moves upward together with the valve shaft section 17. The diaphragm main body 20 is greatly bent.
この場合、上記のように弁軸部１７により上方へ引張され、弁軸貫通孔部２３と隔膜本体部２０との接合部位４３に最も大きな屈曲応力が作用するが、本実施の形態にあっては、上記部位には第一膨出部３１が形成され、この第一膨出部３１は、上記上方弁体１５が上記弁座部１４から離間して上昇し、その結果、上記隔膜本体部２０が変形し最大の応力が作用した状態の形状と同一に形成されていることから、弁軸貫通孔部２３に隣接する部位における屈曲応力に充分に対抗することができ、長年月に亘って使用した場合であっても、応力による破断等を起こすことがなく、耐久性を向上させることができる。 In this case, the valve shaft 17 is pulled upward as described above, and the greatest bending stress acts on the joint portion 43 between the valve shaft through hole 23 and the diaphragm main body 20. The first bulging portion 31 is formed in the portion, and the first bulging portion 31 rises with the upper valve body 15 spaced apart from the valve seat portion 14, and as a result, the diaphragm main body portion. Since 20 is deformed and formed in the same shape as the state in which the maximum stress is applied, the bending stress in the portion adjacent to the valve shaft through hole portion 23 can be sufficiently resisted, and for many years. Even if it is used, it is possible to improve durability without causing breakage due to stress.
その結果、上方管路１１内の液体製品の圧力損失を回避するために、上方弁体１５の大きなストロークを確保する必要があるが、上方弁体１５の大きなストロークを確保するためには、上述のように、隔膜本体部２０と固定部２２の一般面との間の角度α１を大きく形成して隔膜本体部２０を立ち上げる必要があり、隔膜本体部２０と弁軸貫通孔部２３との接合部位に大きな応力の発生が予想されるが、本実施の形態に係るダイアフラム隔膜１９にあっては、第一の膨出部３１によりそのような応力に充分に対抗することができることから、幕面積を変えることなく弁体の大きなストロークを得ることができる。 As a result, in order to avoid the pressure loss of the liquid product in the upper pipe 11, it is necessary to ensure a large stroke of the upper valve body 15. As described above, it is necessary to increase the angle α1 between the diaphragm main body 20 and the general surface of the fixing portion 22 to raise the diaphragm main body 20, and the diaphragm main body 20 and the valve shaft through hole 23 are Although a large stress is expected to be generated at the joint portion, in the diaphragm diaphragm 19 according to the present embodiment, the first bulging portion 31 can sufficiently counter such a stress. A large stroke of the valve body can be obtained without changing the area.
また、弁軸部１７により上方へ引張され、弁軸開口孔部２３が固定部２２と略同一の高さ位置に至った場合には、上記のように隔膜本体部２０と弁軸貫通孔部２３の接合部位に大きな応力が作用すると共に、隔膜本体部２０の斜面方向の中間部は大きく下方に屈曲することから、当該中間部にも大きな応力が作用し負荷がかかる。 In addition, when the valve shaft opening hole 23 is pulled upward by the valve shaft portion 17 and reaches substantially the same height position as the fixed portion 22, as described above, the diaphragm main body portion 20 and the valve shaft through hole portion. A large stress acts on the joint portion 23 and the intermediate portion in the inclined direction of the diaphragm main body portion 20 is largely bent downward, so that a large stress acts on the intermediate portion and a load is applied.
しかしながら、本実施の形態に係るダイアフラム隔膜１９にあっては、上記の屈曲する方向とは反対の方向へ、上記のように所定の角度を以て突出する形状の第二膨出部３２が形成されていることから、隔膜本体部２０の斜面方向の中間部へ作用する応力の集中を防ぐことができ、隔膜本体部２０の折曲強度を向上させることができる。 However, in the diaphragm diaphragm 19 according to the present embodiment, the second bulging portion 32 having a shape protruding at a predetermined angle as described above is formed in a direction opposite to the bending direction. Therefore, the concentration of stress acting on the intermediate portion in the slope direction of the diaphragm main body 20 can be prevented, and the bending strength of the diaphragm main body 20 can be improved.
さらに、一般に、弁軸部の上下動に追随して隔膜が屈曲した場合、単なる平坦な傾斜面部からなる従来の隔膜本体部にあっては、５万回程度の上下動により上記中間部に放射状のくぼみが発生し、その結果、破断することとなる場合が多かった。 Furthermore, in general, when the diaphragm bends following the vertical movement of the valve stem part, in the conventional diaphragm main body composed of a mere flat inclined surface part, the intermediate part is radiated by the vertical movement of about 50,000 times. In many cases, the dent was generated, and as a result, the rupture occurred.
しかしながら、本実施の形態に係るダイアフラム隔膜１９にあっては、第二膨出部３２が設けられていることから、隔膜本体部２０の強度を向上させて、屈曲応力に対して有効に対抗することができ、１００万回の作動であっても、凹みや、クラック等が発生する可能性はないことが確認されている。
なお、上記実施の形態にあっては、本発明に係るダイアフラム隔膜を二重弁栓装置に適用した場合を例に説明したが、上記実施の形態に限定されず、例えば、通常の単一の弁体を備えた弁栓装置５０にダイアフラム隔膜５１を適用することは可能である。他の構成は前記実施の形態と同一である。
However, in the diaphragm diaphragm 19 according to the present embodiment, since the second bulging portion 32 is provided, the strength of the diaphragm main body portion 20 is improved and effectively resists bending stress. It has been confirmed that there is no possibility of dents, cracks, etc. even after 1 million operations.
In the above embodiment, the case where the diaphragm diaphragm according to the present invention is applied to a double valve plug device has been described as an example. However, the present invention is not limited to the above embodiment, for example, a normal single valve It is possible to apply the diaphragm diaphragm 51 to the valve plug device 50 provided with a body. Other configurations are the same as those of the above embodiment.
本発明は、広く内部を流体が流通する管路内に設けられた弁栓装置に広く使用することができる。 INDUSTRIAL APPLICABILITY The present invention can be widely used for a valve stopper device provided in a pipe line through which fluid flows widely.
１０ 二重弁栓装置
１１ 上方管路
１２ 下方管路
１３ 連通路
１４ 弁座部
１５ 上方弁体
１６ 下方弁体
１７ 弁軸部
１８ 弁軸駆動部
１９ ダイアフラム隔膜
２０ 隔膜本体部
２１
２２ 固定部
２３ 弁軸貫通部
２４ 下方弁軸部
２５ 弁軸接合部
２６ 接合固定部
２７ クランプ
２８ バックプレート
２９ バックプレート固定部
３１ 第一の膨出部
３２ 第二の膨出部
３３ 軸方向上端部
３４ 軸方向下端部
３５ 側面部
３６ 上面傾斜部
３７ 下端面部
３８ 下面傾斜部
３９ 上端固定部
４０ 平坦斜面部
４１ 下方傾斜部
４２ 上方傾斜部
４３ 接合部位
５０ 弁栓装置
５１ ダイアフラム隔膜
７０ ダイアフラム隔膜
７１ 固定部
７２ 弁軸貫通孔部
７３ 斜面部
７４ 周縁部
10 Double valve stopper device
DESCRIPTION OF SYMBOLS 11 Upper pipe line 12 Lower pipe line 13 Communication path 14 Valve seat part 15 Upper valve body 16 Lower valve body 17 Valve shaft part 18 Valve shaft drive part 19 Diaphragm diaphragm 20 Diaphragm body part 21
22 fixed portion 23 valve shaft penetrating portion 24 lower valve shaft portion 25 valve shaft joint portion 26 joint fixed portion 27 clamp 28 back plate 29 back plate fixed portion 31 first bulging portion 32 second bulging portion 33 upper end in the axial direction Portion 34 Axial lower end 35 Side surface 36 Upper surface inclined portion 37 Lower end surface portion 38 Lower surface inclined portion 39 Upper end fixing portion 40 Flat inclined surface portion 41 Lower inclined portion 42 Upper inclined portion 43 Joint site 50 Valve plug device 51 Diaphragm diaphragm 70 Diaphragm diaphragm 71 Fixed part 72 Valve shaft through-hole part 73 Slope part 74 Peripheral part
Claims (5)
上記隔膜本体部において弁軸貫通孔の周囲には、下方へ膨出する第一の膨出部が形成されると共に、上記第一の膨出部の上方には上方へ膨出する第二の膨出部が形成されたことを特徴とするダイヤフラム隔膜。 The lower end of the valve shaft joined to the valve body that closes or opens the valve seat provided in the pipeline through which the liquid product circulates, so that the valve shaft can be separated from the inside of the pipeline. A diaphragm main body, a fixed portion formed at the upper end of the diaphragm main body and fixed to a valve shaft support portion in which the valve shaft is housed, and a valve formed at the center of the diaphragm main body. When the shaft is inserted and the valve body portion closes the valve seat portion, a diaphragm having a valve shaft through-hole portion disposed below the fixed portion,
A first bulging portion that bulges downward is formed around the valve shaft through hole in the diaphragm main body, and a second bulging upward above the first bulging portion. A diaphragm diaphragm, wherein a bulging portion is formed.
上記第一の膨出部は、上記弁体部が上記弁座部から離間して上昇し、隔膜本体部が変形し最大の応力が作用した状態の形状と同一に形成され、
上記第一の膨出部は上記弁軸貫通孔部に連続して形成され、上記第二の膨出部は上記第一の膨出部に連続して形成されると共に、上記第二の膨出部と上記上端固定部との間は平坦な斜面部が形成され、上記第二の膨出部は、弁体が弁座部を閉止している状態においては裏面側に配設されたバックプレートに当接することを特徴とする請求項１記載のダイヤフラム隔膜。 The diaphragm body is formed in the shape of an inverted truncated truncated cone, the thickness of the diaphragm body is uniformly formed, and the first bulge and the second bulge are formed to bulge the diaphragm body. Composed of
The first bulging portion is formed in the same shape as the state in which the valve body portion rises away from the valve seat portion, the diaphragm main body portion is deformed and the maximum stress is applied,
The first bulging portion is formed continuously with the valve shaft through-hole portion, the second bulging portion is formed continuously with the first bulging portion, and the second bulging portion is formed. A flat slope is formed between the protruding portion and the upper end fixing portion, and the second bulging portion is a back disposed on the back side in a state where the valve body closes the valve seat portion. 2. The diaphragm according to claim 1, wherein the diaphragm is in contact with the plate.
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| JP2010172859A JP5467013B2 (en) | 2010-07-30 | 2010-07-30 | Diaphragm diaphragm |
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| JP2010172859A JP5467013B2 (en) | 2010-07-30 | 2010-07-30 | Diaphragm diaphragm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303868A (en) * | 2015-06-12 | 2017-01-04 | 钰太芯微电子科技（上海）有限公司 | A kind of high s/n ratio sensor and mike |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047557B (en) * | 1957-05-09 | 1958-12-24 | Hammelrath Turbo Werk Fritz | Valve for high pressures and high temperatures |
| JPS61204084U (en) * | 1985-06-13 | 1986-12-22 | ||
| JP2006112620A (en) * | 2004-09-14 | 2006-04-27 | Aisin Aw Co Ltd | Diaphragm, and solenoid valve comprising the same |
| JP2009052712A (en) * | 2007-08-29 | 2009-03-12 | Iwai Kikai Kogyo Co Ltd | Double-valve plug device |
-
2010
- 2010-07-30 JP JP2010172859A patent/JP5467013B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047557B (en) * | 1957-05-09 | 1958-12-24 | Hammelrath Turbo Werk Fritz | Valve for high pressures and high temperatures |
| JPS61204084U (en) * | 1985-06-13 | 1986-12-22 | ||
| JP2006112620A (en) * | 2004-09-14 | 2006-04-27 | Aisin Aw Co Ltd | Diaphragm, and solenoid valve comprising the same |
| JP2009052712A (en) * | 2007-08-29 | 2009-03-12 | Iwai Kikai Kogyo Co Ltd | Double-valve plug device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303868A (en) * | 2015-06-12 | 2017-01-04 | 钰太芯微电子科技（上海）有限公司 | A kind of high s/n ratio sensor and mike |
| CN106303868B (en) * | 2015-06-12 | 2024-01-16 | 钰太芯微电子科技（上海）有限公司 | High signal-to-noise ratio sensor and microphone |
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