JP2018021652A - Breather valve - Google Patents

Breather valve Download PDF

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Publication number
JP2018021652A
JP2018021652A JP2016163116A JP2016163116A JP2018021652A JP 2018021652 A JP2018021652 A JP 2018021652A JP 2016163116 A JP2016163116 A JP 2016163116A JP 2016163116 A JP2016163116 A JP 2016163116A JP 2018021652 A JP2018021652 A JP 2018021652A
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Prior art keywords
valve
groove
valve seat
height
liquid
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JP2016163116A
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JP6197209B1 (en
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英之 小笠原
Hideyuki Ogasawara
英之 小笠原
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OGASAWARA KOGYOSHO KK
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OGASAWARA KOGYOSHO KK
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  • Lift Valve (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Safety Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a valve that prevents minute leakage under minute pressure.SOLUTION: In order to prevent minute leakage from an abutment surface between valve elements 2, 9 and valve seats 3, 10 of a breather valve, grooves 5, 14 are provided around valve seat surfaces and storing liquid to a height of the valve seat surfaces prevents minute leakage by using surface tension of the liquid for closing force of the valve seats and the valve elements.SELECTED DRAWING: Figure 1

Description

本発明は、容器内に蒸発性の液体を保管する場合、液体の張り込み又は、払い出し、及び大気温度の変化や大気圧の変化等による内圧の上昇・下降の際に内圧を調整し、タンクの安全を図りながら、容器内の液体の蒸発を防止するバルブに関する。  In the present invention, when storing an evaporable liquid in a container, the internal pressure is adjusted when the internal pressure is increased or decreased due to the addition or discharge of the liquid and the change of the atmospheric temperature or the change of the atmospheric pressure. The present invention relates to a valve that prevents evaporation of liquid in a container while ensuring safety.

近年、コストダウンの要求が激しくなり、蒸気性の液体を貯蔵する大型の容器においても、タンクの通気口から大気に蒸発する量を小さくする必要が生じました。
ここで、大型のタンクでは、内圧及び外圧に対して強度の問題から微圧しか加えられない。In recent years, the demand for cost reduction has become violent, and even for large containers that store vaporous liquids, it has become necessary to reduce the amount of evaporation from the vents of the tank to the atmosphere.
Here, in a large tank, only a slight pressure can be applied to the internal pressure and the external pressure due to the problem of strength.

この要求を満足させるためには、微圧において漏れ量の少ないバルブ、つまり、弁体と弁座の組合せが考えられて来た。  In order to satisfy this requirement, a valve having a small amount of leakage at a low pressure, that is, a combination of a valve body and a valve seat has been considered.

微圧において漏れ量を最小限に抑えるため、弁座面を研摩したり、非常に柔らかなパッキンを弁座面に使用する等が考えられてきたが、微少な漏れを防止することができなかった。
本発明は微圧において微少な漏れを防止することができるブリザーバルブつまり、弁体と弁座を提供することを目的としている。In order to minimize the amount of leakage at low pressure, it has been considered to polish the valve seat surface or use a very soft packing for the valve seat surface, but it is not possible to prevent minute leakage. It was.
An object of the present invention is to provide a blister valve, that is, a valve body and a valve seat, which can prevent minute leakage at a low pressure.

本発明はブリザーバルブに関する。
ブリザーバルブの弁体と弁座の当り面からの微小な漏れを防止するため、容器内液体の蒸気を弁体又は、弁座又は、弁を取り囲むケースで結露させ、その液体を弁座の当り面に集めて、その液体の水面と、弁座面の高さをほぼ同じとし、その液体の表面張力を利用して、弁座と弁体を密着させて微少な漏れを防止しようとしたものである。The present invention relates to a blister valve.
In order to prevent minute leakage from the contact surface between the valve body of the blister valve and the valve seat, the vapor of the liquid in the container is condensed in the valve body, the valve seat, or the case surrounding the valve, and the liquid hits the valve seat. The surface of the liquid and the height of the valve seat surface are almost the same, and the surface tension of the liquid is used to make the valve seat and the valve body adhere to prevent slight leakage. It is.

図１は本発明のブリザーバルブをタンクに取付けた図  FIG. 1 is a diagram in which the blister valve of the present invention is attached to a tank. 図２は本発明のプラス側の弁体と弁座の詳細図  FIG. 2 is a detailed view of the plus side valve body and valve seat of the present invention. 図３は本発明のマイナス側の弁体と弁座の詳細図  FIG. 3 is a detailed view of the negative valve body and valve seat of the present invention.

図面と共に本ブリザーバルブの構成を説明する。
本バルブには、容器の内圧がプラス側になった時に働くプラス側の弁２，３とマイナス側になった時に働くマイナス側の弁９，１０が、配管でつながった各弁ケース１，８に取付けられている。
プラス側の弁体２はタンク内面につながった側の面が円錐状４になっており、弁体で結露した水滴が周囲に集まるようになっている。
この弁体２で集めた液体を弁座側に落下させ、落下の直下には液を受ける溝５が円周状に弁座の内周側に設けられている。この溝の堀の高さは弁座の当り面とほぼ同じ高さになっている。弁体２で集めた液体を弁座周囲の溝５に貯めて水面の高さを弁座の高さに合わせることにより、液体の表面張力を弁を閉める力に利用することが出来るようになる。
マイナス側の弁座１０はその直近の外周囲に小さな溝１４を円周状に設けて、その溝の外周側の弁座を円錐状に溝に向かって勾配を付けており、この溝１４の高さを弁座１０の高さとほぼ同じ高さになっている。マイナス側の弁ケース８で集めた液体を弁座外周囲の溝１４に貯めて、水面の高さを弁座の高さに合わせることにより液体の表面張力を弁を閉める力に利用することが出来るようになる。ここで、マイナス側では弁ケースで集まりすぎた液体により弁座面からの液位が深くなり、表面張力が利用できなくなってくるが、弁が作動することにより余分な液体は排出され、自動で機能を回復させることが出来る。プラス側の弁ケースとマイナス側の弁ケースは配管で接続し、一体となった構造としているが、それぞれ別々で取付けても同様の効果がある。The configuration of the present blister valve will be described with reference to the drawings.
In this valve, each of the valve cases 1 and 8 is connected to the positive valves 2 and 3 that work when the internal pressure of the container becomes the positive side and the negative valves 9 and 10 that work when the internal pressure becomes the negative side. Installed on.
The positive side valve element 2 has a conical shape 4 on the side connected to the inner surface of the tank, so that water droplets condensed by the valve element gather around.
The liquid collected by the valve body 2 is dropped to the valve seat side, and a groove 5 for receiving the liquid is provided circumferentially on the inner peripheral side of the valve seat immediately below the drop. The height of the trench moat is almost the same as the contact surface of the valve seat. By storing the liquid collected by the valve body 2 in the groove 5 around the valve seat and adjusting the height of the water surface to the height of the valve seat, the surface tension of the liquid can be used as the force for closing the valve. .
The minus-side valve seat 10 is provided with a small groove 14 in a circular shape around the outer periphery in the immediate vicinity thereof, and the valve seat on the outer peripheral side of the groove is inclined in a conical shape toward the groove. The height is substantially the same as the height of the valve seat 10. The liquid collected in the negative valve case 8 is stored in a groove 14 around the valve seat, and the surface tension of the liquid is utilized as a force for closing the valve by adjusting the height of the water surface to the height of the valve seat. become able to do. Here, on the negative side, the liquid level from the valve seat surface becomes deep due to the liquid collected in the valve case, and the surface tension becomes unusable.However, when the valve is activated, excess liquid is discharged and automatically Function can be restored. The plus side valve case and the minus side valve case are connected by piping to form an integrated structure, but the same effect can be obtained by mounting them separately.

１ プラス側弁ケース
２ プラス側弁体
３ プラス側弁座
４ プラス側弁体の内面側の円錐部
５ プラス側弁座の内周に設けられた溝
６ プラス側弁体のシャフト
７ プラス側弁体のシャフト受け
８ マイナス側弁ケース
９ マイナス側弁体
１０ マイナス側弁座
１１ マイナス側弁体のシャフト
１２ マイナス側弁体のシャフト受け
１３ マイナス側溝の外周囲に設けられた円錐部
１４ マイナス側弁座の外周に設けられた溝
１５ プラス側弁ケースとマイナス側弁ケースをつなぐ配管
１６ 容器
１７ 内部の液体
１８ 水面DESCRIPTION OF SYMBOLS 1 Plus side valve case 2 Plus side valve body 3 Plus side valve seat 4 Conical part 5 on the inner surface side of the plus side valve body 6 Groove provided in the inner periphery of the plus side valve seat 7 Shaft 7 of the plus side valve body Plus side valve Body shaft receiver 8 Negative side valve case 9 Negative side valve body 10 Negative side valve seat 11 Negative side valve body shaft 12 Negative side valve body shaft receiver 13 Conical portion 14 provided on the outer periphery of the negative side groove Negative side valve Groove 15 provided on the outer periphery of the seat Piping 16 connecting the plus side valve case and the minus side valve case 16 Liquid 17 inside the container 17 Water surface

Claims (1)

容器の内圧が微圧でも、容器の密閉を保つブリザーバルブにおいて、プラス側の圧力で作動する弁とそれらを囲う弁ケース１と、マイナス側の圧力で作動する弁とそれらを囲う弁ケース８があり、前記２つのケースは配管１５でつながり、１つの配管となってタンク１６に接続されている。
前記プラス側の弁の弁体２は下面が円錐状４に中央部が深く、周囲が浅くなっている。
このプラス側の弁体２と対になっている弁座３の内周には溝５が設けられており、この溝のせきは弁座の当り面とほぼ同じ高さとなっている。
前記マイナス側の弁の弁座１０の外周に小さな溝１４を設け溝の高さと弁座の高さをほぼ同じとし、溝の外周側を円錐状１３に弁ケースから溝に向かって勾配を付けてある事を特徴とするブリザーバルブ。In a blister valve that keeps the container sealed even when the internal pressure of the container is small, a valve that operates with a positive pressure, a valve case 1 that surrounds them, a valve that operates with a negative pressure, and a valve case 8 that surrounds them The two cases are connected by a pipe 15 and are connected to the tank 16 as one pipe.
The valve body 2 of the plus side valve has a conical shape 4 on its lower surface and a deep central portion and a shallow periphery.
A groove 5 is provided in the inner periphery of the valve seat 3 paired with the plus side valve body 2, and the crest of the groove is substantially the same height as the contact surface of the valve seat.
A small groove 14 is provided on the outer periphery of the valve seat 10 of the negative valve so that the height of the groove and the height of the valve seat are substantially the same, and the outer peripheral side of the groove is conically shaped 13 with a gradient from the valve case toward the groove. A blister valve characterized by
JP2016163116A 2016-08-05 2016-08-05 Blizzor valve Active JP6197209B1 (en)

Priority Applications (1)

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JP6197209B1 JP6197209B1 (en) 2017-09-20
JP2018021652A true JP2018021652A (en) 2018-02-08

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1664963A (en) * 1927-02-14 1928-04-03 Standard Oil Co Liquid seal
JPS4721022U (en) * 1971-03-22 1972-11-09
JPS54105637A (en) * 1978-02-07 1979-08-18 Mitsubishi Gas Chemical Co Pressure regulator
JPH0926046A (en) * 1995-06-22 1997-01-28 Durgo Ab Valve for ventilation
JP2000257734A (en) * 1999-01-08 2000-09-19 Kitz Corp Vent valve
JP2003161375A (en) * 2001-11-27 2003-06-06 Miura Co Ltd Valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1664963A (en) * 1927-02-14 1928-04-03 Standard Oil Co Liquid seal
JPS4721022U (en) * 1971-03-22 1972-11-09
JPS54105637A (en) * 1978-02-07 1979-08-18 Mitsubishi Gas Chemical Co Pressure regulator
JPH0926046A (en) * 1995-06-22 1997-01-28 Durgo Ab Valve for ventilation
JP2000257734A (en) * 1999-01-08 2000-09-19 Kitz Corp Vent valve
JP2003161375A (en) * 2001-11-27 2003-06-06 Miura Co Ltd Valve

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