JP5775688B2 - Soluble valve for safety valve - Google Patents
Soluble valve for safety valve Download PDFInfo
- Publication number
- JP5775688B2 JP5775688B2 JP2010282540A JP2010282540A JP5775688B2 JP 5775688 B2 JP5775688 B2 JP 5775688B2 JP 2010282540 A JP2010282540 A JP 2010282540A JP 2010282540 A JP2010282540 A JP 2010282540A JP 5775688 B2 JP5775688 B2 JP 5775688B2
- Authority
- JP
- Japan
- Prior art keywords
- fusible
- safety valve
- stopper
- soluble
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008018 melting Effects 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 230000007257 malfunction Effects 0.000 description 7
- 229910052738 indium Inorganic materials 0.000 description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 6
- 239000001993 wax Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000846 In alloy Inorganic materials 0.000 description 4
- 229910052797 bismuth Inorganic materials 0.000 description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 4
- 239000002195 soluble material Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000006023 eutectic alloy Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Landscapes
- Safety Valves (AREA)
Description
この発明は、高温時に移動部材が移動することで流体通路が開放または閉鎖される安全弁で使用される安全弁用可溶栓に関する。 The present invention relates to a fusible stopper for a safety valve used in a safety valve in which a fluid passage is opened or closed by moving a moving member at a high temperature.
従来、火災発生時または内部の流体温度が設定以上の高温となった時等に容器内圧力が上昇し過ぎることを防止するために、高温時に移動部材が移動することで流体通路が開放される安全弁が知られており、このような安全弁においては、通常時は、固定部材として移動部材の移動を阻止し、高温時は、溶融することで移動部材の移動を可能とする円筒状可溶栓が使用されている（特許文献１）。 Conventionally, in order to prevent the pressure in the container from rising excessively in the event of a fire or when the internal fluid temperature becomes higher than the set temperature, the fluid passage is opened by moving the moving member at a high temperature. A safety valve is known, and in such a safety valve, a cylindrical fusible stopper that normally prevents movement of the moving member as a fixed member and melts the moving member by melting at high temperatures. Is used (Patent Document 1).
可溶栓の形状としては、円筒状のものの他、円柱状のものも知られている（特許文献２）。 As the shape of the fusible stopper, a cylindrical one is also known (Patent Document 2).
安全弁で使用される可溶栓は、移動部材の移動を阻止する機能が必要であり、強度が不十分であると、通常時の誤作動の可能性が増すことから、可溶栓の材料としては、強度確保の点で、インジウム合金（Ｉｎ６７％、Ｂｉ３３％）が好適とされている。しかしながら、インジウムは高価なものであり、その使用量を減少して、材料コストを低減することが望まれている。 The fusible stopper used in the safety valve must have a function to prevent the movement of the moving member. If the strength is insufficient, the possibility of malfunction during normal operation increases. In view of securing strength, indium alloys (In 67%, Bi 33%) are suitable. However, indium is expensive, and it is desired to reduce the amount of the indium used to reduce the material cost.
この発明の目的は、通常時の誤作動の可能性を増加させることなく、材料コストを低減することができる安全弁用可溶栓を提供することにある。 An object of the present invention is to provide a fusible stopper for a safety valve that can reduce the material cost without increasing the possibility of malfunction during normal operation.
この発明による安全弁用可溶栓は、高温時に移動部材が移動することで流体通路が開放または閉鎖される安全弁で使用され、通常時は、固定部材として移動部材の移動を阻止し、高温時は、溶融することで移動部材の移動を可能とする安全弁用可溶栓であって、第１の可溶体と、これとは素材が異なる第２の可溶体とから一体的に形成されており、軸部およびこれを囲む外筒部からなる円柱状をなし、外筒部が第１および第２の可溶体のうちの相対的に強度の高い方で形成されていることを特徴とするものである。 The fusible stopper for a safety valve according to the present invention is used in a safety valve in which a fluid passage is opened or closed when a moving member moves at a high temperature, and normally prevents the moving member from moving as a fixed member, A fusible stopper for a safety valve that enables movement of the moving member by melting, and is integrally formed from a first fusible body and a second fusible body having a different material from the first fusible body , It has a cylindrical shape composed of a shaft part and an outer cylinder part surrounding the shaft part, and the outer cylinder part is formed by the relatively strong one of the first and second fusible bodies. is there.
安全弁は、非常時閉（常時開）のものとされることがあり、また、非常時開（常時閉）のものとされることがある。非常時閉のものでは、弾性部材（例えば圧縮コイルばね）によって移動部材が流体通路を閉鎖する方向に付勢された状態で、流体通路を開放した状態で移動部材が固定されており、高温時には、可溶栓が溶融することで、弾性部材の弾性力によって移動部材が流体通路を閉鎖する方向に移動させられる。非常時開のものでは、弾性部材（例えば圧縮コイルばね）によって移動部材が流体通路を開放する方向に付勢された状態で、流体通路を閉鎖した状態で移動部材が固定されており、高温時には、可溶栓が溶融することで、弾性部材の弾性力によって移動部材が流体通路を開放する方向に移動させられる。 The safety valve may be emergency closed (normally open) or may be emergency open (normally closed). In the case of emergency closing, the moving member is fixed in a state where the fluid passage is opened while the moving member is biased in a direction to close the fluid passage by an elastic member (for example, a compression coil spring). When the fusible plug is melted, the moving member is moved in the direction of closing the fluid passage by the elastic force of the elastic member. In the case of emergency opening, the moving member is fixed in a state in which the moving member is biased in a direction to open the fluid passage by an elastic member (for example, a compression coil spring) and the fluid passage is closed. When the fusible plug is melted, the moving member is moved in the direction of opening the fluid passage by the elastic force of the elastic member.
第１の可溶体は、例えば、インジウム合金とされ、第２の可溶体は、例えば、これに対して、強度は劣るがコストが低い素材（例えばロウまたはワックス）とされる。 The first fusible body is, for example, an indium alloy, and the second fusible body is, for example, a material (for example, wax or wax) having low strength but low cost.
第１の可溶体と第２の可溶体とは、両者が密着するように一体的に形成される。このようにすることで、相対的に強度が低くかつ材料コストが低い可溶体を使用することに伴う強度の低下を抑えることができる。 A 1st soluble body and a 2nd soluble body are integrally formed so that both may closely_contact | adhere. By doing in this way, the fall of the intensity | strength accompanying use of a soluble body with comparatively low intensity | strength and low material cost can be suppressed.
好ましくは、第１の可溶体（相対的に強度の高い可溶体）は、金属製とされ、第２の可溶体（相対的に強度の低い可溶体）は、非金属製とされる。金属製の可溶体としては、ガリウム／インジウム系の共晶合金や、ビスマス／インジウム系の合金（ビスマス／インジウム、ビスマス／インジウム／銀系、ビスマス／インジウム／錫系など）等が好ましく、また、はんだや、鉛をベースとした共晶系の合金を使用することもできる。非金属製の可溶体としては、重合度を適度に調整した高分子材料（樹脂）や、所定の融点を備えた各種ワックス（ロウを含む）が好ましい。 Preferably, the first soluble body (soluble body having a relatively high strength) is made of metal, and the second soluble body (soluble body having a relatively low strength) is made of a non-metal. As the metal soluble material, a gallium / indium eutectic alloy, a bismuth / indium alloy (bismuth / indium, bismuth / indium / silver, bismuth / indium / tin, etc.) and the like are preferable. Eutectic alloys based on solder or lead can also be used. As the non-metallic soluble material, a polymer material (resin) having an appropriately adjusted degree of polymerization and various waxes (including wax) having a predetermined melting point are preferable.
第１の可溶体の融点と第２の可溶体の融点とは、ほぼ同じに設定され、例えば、１１０℃程度とされる。好ましくは、相対的に強度の低い可溶体の融点は、相対的に強度の高い可溶体の融点よりも、若干（１〜５℃程度）高いものとされる。 The melting point of the first soluble body and the melting point of the second soluble body are set to be substantially the same, for example, about 110 ° C. Preferably, the melting point of the relatively weak soluble body is slightly higher (about 1 to 5 ° C.) than the melting point of the relatively strong soluble body.
可溶栓は、全体として、円柱状または円筒状に形成され、異なる素材の可溶体の二層構造とされる。二層構造は、内側と外側の二層であってもよく、上側と下側の二層であってもよい。ここで、相対的に強度の高い可溶体は、弾性部材を受ける部分など、強度がより必要な部分に配置され、相対的に強度の低い可溶体と一体的に形成されることで、これに密着するように配置される。 The fusible plug as a whole is formed in a columnar shape or a cylindrical shape, and has a two-layer structure of fusible bodies made of different materials. The two-layer structure may be an inner and outer two layers, or an upper and lower two layers. Here, the relatively high-strength fusible body is disposed in a portion that requires more strength, such as a portion that receives an elastic member, and is formed integrally with the relatively low-strength fusible body. It arrange | positions so that it may contact | adhere.
安全弁用可溶栓は、軸部およびこれを囲む外筒部からなる円柱状をなしており、外筒部が第１および第２の可溶体のうちの相対的に強度の高い方で形成されていることが好ましい。ただし、内側の層が弾性部材を受けるような構成の場合は、内側を相対的に強度の高い方で形成してもよい。 The fusible stopper for a safety valve has a columnar shape including a shaft portion and an outer cylinder portion surrounding the shaft portion, and the outer cylinder portion is formed by a relatively strong one of the first and second fusible bodies. It is preferable. However, when the inner layer receives the elastic member, the inner layer may be formed with a relatively high strength.
相対的に強度の高い方の可溶体だけで円筒状に形成された安全弁用可溶栓は、その中空部分が強度に影響しないため、強度的に弱い（変形しやすい）ものとなり、この中空部分（軸部）が相対的に強度の低い方の可溶体で埋められることによって、強度が大幅に高められる。軸部が相対的に強度の低い可溶体で形成された円柱状可溶栓は、全体が相対的に強度の高い可溶体だけで形成された円柱状可溶栓に比べて、強度が低下することになるが、強度への寄与が大きい外筒部が同じ素材であるため、強度の低下量は少なく、通常時の誤作動の可能性を増加させる程の強度の低下とはならない。 The safety valve fusible stopper formed in a cylindrical shape with only the relatively strong fusible body is weak in strength (easy to deform) because the hollow part does not affect the strength. By filling the (shaft portion) with a soluble body having a relatively low strength, the strength is significantly increased. The column-shaped fusible plug formed of a soluble body having a relatively low strength shaft has a lower strength than the column-shaped fusible plug formed only of a relatively strong fusible body as a whole. However, since the outer cylinder portion having a large contribution to the strength is made of the same material, the amount of decrease in strength is small, and the strength does not decrease so as to increase the possibility of malfunction during normal operation.
上記において、外筒部を形成する可溶体が金属製可溶体とされ、軸部を形成する可溶体が非金属製可溶体とされていることがより好ましい。このような組み合わせとすることで、通常時の誤作動の可能性を増加させることなく、材料コストを低減することが容易なものとなる。 In the above, it is more preferable that the soluble body forming the outer cylinder portion is a metal soluble body, and the soluble body forming the shaft portion is a non-metallic soluble body. With such a combination, it is easy to reduce the material cost without increasing the possibility of malfunction during normal operation.
このような円柱状可溶栓を得るには、例えば、円筒状可溶栓を製造するのと同様にして、第１の成形型を使用して外筒部を形成した後、第２の成形型を使用して、外筒部の内部に軸部を形成する第２の可溶体を充填すればよい。 In order to obtain such a column-shaped fusible plug, for example, in the same manner as the production of the cylindrical fusible plug, after forming the outer cylinder portion using the first mold, the second molding is performed. What is necessary is just to fill the 2nd soluble body which forms a axial part inside an outer cylinder part using a type | mold.
軸部を形成する相対的に強度の低い可溶体は、外筒部を形成する相対的に強度の高い可溶体に比べて、その融点が高いことが好ましい。 It is preferable that the relatively low-strength soluble body forming the shaft portion has a higher melting point than the relatively high-strength soluble body forming the outer cylinder portion.
相対的に強度の低い可溶体の融点と相対的に強度の高い可溶体の融点とは、基本的には、等しいものとされるが、相対的に強度の低い可溶体の融点の方を若干高くすることにより、強度の低下を補うことができるので、より好ましい。 The melting point of a relatively low-strength soluble body and the melting point of a relatively high-strength soluble body are basically the same, but the melting point of a relatively low-strength soluble body is slightly different. By making it high, a decrease in strength can be compensated for, which is more preferable.
相対的に強度の高い可溶体に、ばねを受ける面が形成されていることがある。安全弁用可溶栓に、圧縮コイルばね等の弾性部材が直接当たる場合、ばねを受ける部分の強度が必要となるが、この部分が相対的に強度の高い可溶体で形成されていることで、通常時の誤作動の可能性を低下させることができる。 A surface that receives a spring may be formed on a relatively strong fusible body. When an elastic member such as a compression coil spring directly hits the fusible stopper for a safety valve, the strength of the part that receives the spring is required, but this part is formed of a relatively strong fusible body, The possibility of malfunction during normal operation can be reduced.
この発明の安全弁用可溶栓によると、第１の可溶体とこれとは素材が異なる第２の可溶体とから一体的に形成されているので、相対的に強度が低くかつ材料コストが低い可溶体を使用することに伴う強度の低下が抑えられ、通常時の誤作動の可能性を増加させることなく、材料コストを低減することができる。 According to the fusible stopper for a safety valve of the present invention, since the first fusible body and the second fusible body having different materials are integrally formed, the strength is relatively low and the material cost is low. The decrease in strength due to the use of the soluble material is suppressed, and the material cost can be reduced without increasing the possibility of malfunction during normal operation.
この発明の実施の形態を、以下図面を参照して説明する。以下の説明において、上下は、図１の上下をいうものとする。 Embodiments of the present invention will be described below with reference to the drawings. In the following description, the top and bottom refer to the top and bottom of FIG.
図１は、この発明による安全弁用可溶栓(11)が使用される安全弁(1)を模式的に示すもので、安全弁(1)は、容器(2)の開口に取り付けられて温度が上昇した場合に容器(2)内のガスを開放することによって、容器(2)内の圧力が上昇し過ぎることを防止するためのもので、頂壁(3a)および周壁(3b)からなりその周壁(3b)の下端部が容器(2)の開口縁部に固定される円筒状本体(3)と、本体(3)内に移動可能に配置されたフランジ付き円柱状の移動部材(4)と、移動部材(4)を上向きに付勢する圧縮コイルばね（弾性部材）(5)と、本体(3)の頂壁(3a)下面と移動部材(4)の上面との間に介在させられた短円柱状安全弁用可溶栓(11)とを備えている。 FIG. 1 schematically shows a safety valve (1) in which a fusible stopper (11) for a safety valve according to the present invention is used. The safety valve (1) is attached to the opening of a container (2) and the temperature rises. In this case, the gas in the container (2) is released to prevent the pressure in the container (2) from rising excessively, and consists of the top wall (3a) and the peripheral wall (3b). A cylindrical main body (3) in which the lower end of (3b) is fixed to the opening edge of the container (2), and a columnar moving member (4) with a flange movably disposed in the main body (3); A compression coil spring (elastic member) (5) for urging the moving member (4) upward, and a lower surface of the top wall (3a) of the main body (3) and an upper surface of the moving member (4). And a fusible stopper (11) for a short cylindrical safety valve.
本体(3)の周壁(3b)の上端部（頂壁(3a)でもよい）には、可溶栓(11)が溶融した場合に、これを外部に溶出させる溶融可溶栓通路(6)が設けられており、本体(3)の周壁(3b)の下端部には、移動部材(4)が上方に移動した場合に、容器(2)内に連通する容器内ガス開放通路(7)が設けられている。 A melt-dissolvable plug passage (6) for eluting the soluble plug (11) to the outside when the fusible plug (11) is melted at the upper end (or the top wall (3a)) of the peripheral wall (3b) of the main body (3) In the lower end of the peripheral wall (3b) of the main body (3), when the moving member (4) moves upward, the in-container gas release passage (7) communicates with the inside of the container (2). Is provided.
移動部材(4)は、通常時に、本体(3)の下端の開口を閉鎖するもので、これにより、容器(2)の開口が閉鎖されている。 The moving member (4) normally closes the opening at the lower end of the main body (3), whereby the opening of the container (2) is closed.
安全弁用可溶栓(11)は、通常時には、固定部材として移動部材(4)の上方への移動を阻止しており、高温異常が生じない限り、安全弁(1)は、図１に示した状態に維持される。安全弁用可溶栓(11)は、高温時は、溶融することで移動部材(4)の移動を可能とするもので、高温時には、安全弁用可溶栓(11)が溶融して、本体(3)の溶融可溶栓通路(6)から溶出し、これに伴って、移動部材(4)の移動可能空間が形成され、圧縮コイルばね(5)によって上向きに付勢された移動部材(4)が上方に移動する。これにより、本体(3)の容器内ガス開放通路(7)と容器(2)内とが連通し、容器(2)内の圧力の上昇が防止される。 The fusible stopper (11) for the safety valve normally prevents the upward movement of the moving member (4) as a fixed member, and the safety valve (1) is shown in FIG. 1 unless a high temperature abnormality occurs. Maintained in a state. The safety valve fusible stopper (11) is capable of moving the moving member (4) by melting at high temperatures.At high temperatures, the fusible stopper for safety valves (11) is melted and the body ( 3), the elution from the melt-soluble plug passage (6), and accordingly, a movable space of the moving member (4) is formed, and the moving member (4) biased upward by the compression coil spring (5). ) Moves upward. As a result, the in-container gas release passageway (7) of the main body (3) communicates with the inside of the container (2) to prevent an increase in pressure in the container (2).
この発明による安全弁用可溶栓(11)は、図２にも示すように、軸部(12)とこれを囲む外筒部(13)とが一体的に形成された円柱状をなし、その上面および下面が面一とされている。 As shown in FIG. 2, the fusible stopper (11) for a safety valve according to the present invention has a cylindrical shape in which a shaft portion (12) and an outer cylinder portion (13) surrounding the shaft portion (12) are integrally formed. The upper surface and the lower surface are flush.
この安全弁用可溶栓(11)は、外筒部(13)が第１の可溶体製とされ、軸部(12)が第１の可溶体とは素材が異なる第２の可溶体製とされている点に特徴がある。第１の可溶体は、例えばインジウム合金からなる金属製可溶体とされており、第２の可溶体は、例えば所定の融点を備えたワックスからなる非金属製可溶体とされている。こうして、外筒部(13)は、相対的に強度の高い金属製可溶体で形成され、軸部(12)は、相対的に強度の低い非金属製可溶体で形成されている。 This safety valve fusible stopper (11) has an outer tube portion (13) made of a first fusible body and a shaft portion (12) made of a second fusible body made of a different material from the first fusible body. It is characterized in that it is. The first fusible body is, for example, a metal fusible body made of an indium alloy, and the second fusible body is, for example, a non-metallic fusible body made of wax having a predetermined melting point. Thus, the outer cylinder portion (13) is formed of a relatively soluble metal soluble body, and the shaft portion (12) is formed of a relatively weak nonmetallic soluble body.
具体的には、外筒部(13)を形成する金属製可溶体は、Ｉｎ６７％、Ｂｉ３３％の合金で、その融点が１０９℃であり、軸部(12)を形成する非金属製可溶体は、融点が１１０℃のワックスとされている。 Specifically, the metallic fusible body forming the outer cylinder part (13) is an alloy of In67% and Bi33%, the melting point is 109 ° C., and the nonmetallic fusible body forming the shaft part (12). Is a wax having a melting point of 110 ° C.
上記において、安全弁用可溶栓(11)は、軸部(12)および外筒部(13)の内外二層とされているが、使用用途によっては、第１の可溶体および第２の可溶体からなる上下二層とすることもできる。 In the above, the fusible stopper (11) for the safety valve has two layers of the shaft part (12) and the outer cylinder part (13). However, depending on the intended use, the first fusible body and the second feasible plug may be used. It can also be made into the upper and lower two layers which consist of a solution.
図３には、安全弁(1)の異なる構成を示している。同図において、図１と異なる構成として、移動部材(4)の上面と安全弁用可溶栓(11)との間に、第２の圧縮コイルばね(8)が設けられており、安全弁用可溶栓(11)には、この圧縮コイルばね(8)を受ける面が必要とされている。ここで、ばね受け面(13a)は、外筒部(13)の下面とされている。すなわち、相対的に強度の高い可溶体に、ばねを受ける面(13a)が形成されている。 FIG. 3 shows a different configuration of the safety valve (1). In this figure, a second compression coil spring (8) is provided between the upper surface of the moving member (4) and the safety valve fusible stopper (11) as a configuration different from that of FIG. The fusing plug (11) is required to have a surface for receiving the compression coil spring (8). Here, the spring receiving surface (13a) is the lower surface of the outer tube portion (13). That is, a surface (13a) for receiving a spring is formed on a soluble body having a relatively high strength.
図３の安全弁(1)では、安全弁用可溶栓(11)に第２の圧縮コイルばね(8)が直接当たることで、ばねを受ける部分である外筒部(13)の強度が必要となるが、この部分が相対的に強度の高い可溶体で形成されていることで、通常時の誤作動の可能性を低下させることができるという内外二層構造の利点をより生かすことができる。 In the safety valve (1) of FIG. 3, the second compression coil spring (8) directly contacts the fusible stopper (11) for the safety valve, so that the strength of the outer cylinder portion (13), which is the portion that receives the spring, is required. However, since this part is formed of a soluble material having a relatively high strength, the advantage of the inner and outer two-layer structure that the possibility of malfunction during normal operation can be reduced can be further utilized.
安全弁(1)の構成は、図示したものに限られるものではなく、例えば、上記に示した安全弁(1)は、いずれも、高温時には、可溶栓(11)が溶融することで、圧縮コイルばね(5)の弾性力によって移動部材(4)が容器内ガス開放通路（流体通路）(7)を開放する方向に移動させられる非常時開（常時閉）のものとされているが、この発明による安全弁用可溶栓(11)は、圧縮コイルばねによって移動部材が流体通路を閉鎖する方向に付勢された状態で、流体通路が開放されており、高温時には、可溶栓が溶融することで、弾性部材の弾性力によって移動部材が流体通路を閉鎖する方向に移動させられる非常時閉（常時開）のものにも適用することができ、その他種々の形態のものに適用することができる。また、溶融した可溶体を外部に排出することができない場合は、溶融可溶栓通路(6)を外部に向けて開口するのではなく、内部の別の場所に連通して溶出するようにしてもよい。 The configuration of the safety valve (1) is not limited to the one shown in the figure.For example, the safety valve (1) shown above has a compression coil that melts the fusible stopper (11) at high temperatures. Although the moving member (4) is moved in the direction to open the in-container gas release passage (fluid passage) (7) by the elastic force of the spring (5), it is assumed to be an emergency open (normally closed). The fusible stopper (11) for a safety valve according to the invention is such that the fluid passage is opened in a state where the moving member is urged by the compression coil spring in a direction to close the fluid passage, and the fusible stopper melts at a high temperature. Thus, the present invention can be applied to an emergency closed (normally open) type in which the moving member is moved in the direction of closing the fluid passage by the elastic force of the elastic member, and can be applied to other various forms. it can. Also, if the meltable fusible body cannot be discharged to the outside, the meltable fusible plug passage (6) is not opened to the outside, but is communicated to another place inside and eluted. Also good.
(1) 安全弁
(4) 移動部材
(11) 安全弁用可溶栓
(12) 軸部（第２の可溶体）
(13) 外筒部（第１の可溶体）
(1) Safety valve
(4) Moving member
(11) Soluble valve for safety valve
(12) Shaft (second soluble body)
(13) Outer cylinder (first soluble body)
Claims (4)
第１の可溶体と、これとは素材が異なる第２の可溶体とから一体的に形成されており、軸部およびこれを囲む外筒部からなる円柱状をなし、外筒部が第１および第２の可溶体のうちの相対的に強度の高い方で形成されていることを特徴とする安全弁用可溶栓。 It is used in a safety valve that opens or closes the fluid passage when the moving member moves at high temperatures. Normally, the moving member is prevented from moving as a fixed member, and at high temperatures, the moving member moves by melting. A fusible stopper for a safety valve,
The first fusible body is integrally formed with a second fusible body made of a different material from the first fusible body, and has a cylindrical shape including a shaft portion and an outer cylinder portion surrounding the shaft portion. And a soluble stopper for a safety valve, which is formed of a relatively strong one of the second soluble bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010282540A JP5775688B2 (en) | 2010-12-20 | 2010-12-20 | Soluble valve for safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010282540A JP5775688B2 (en) | 2010-12-20 | 2010-12-20 | Soluble valve for safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012132475A JP2012132475A (en) | 2012-07-12 |
| JP5775688B2 true JP5775688B2 (en) | 2015-09-09 |
Family
ID=46648299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010282540A Active JP5775688B2 (en) | 2010-12-20 | 2010-12-20 | Soluble valve for safety valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5775688B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5818854B2 (en) * | 2013-10-15 | 2015-11-18 | 株式会社フジキン | safety valve |
| JP6011566B2 (en) | 2014-03-05 | 2016-10-19 | トヨタ自動車株式会社 | Soluble type safety valve |
| JP5679392B1 (en) * | 2014-10-14 | 2015-03-04 | エスアールエンジニアリング株式会社 | safety valve |
| CN106931210B (en) * | 2017-04-26 | 2023-02-28 | 珠海格力电器股份有限公司 | Fusible plug and pressure equipment |
| RU2666841C1 (en) * | 2017-09-04 | 2018-09-12 | Акционерное общество Инжиниринговая компания "АСЭ" | Emergency single-acting thermal valve |
| KR20230041104A (en) | 2020-08-03 | 2023-03-23 | 가부시키가이샤 후지킨 | Safety valve and discharge direction regulating member |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939461A (en) * | 1982-08-30 | 1984-03-03 | Komatsu Ltd | Production of particle dispersion type wear-resistant composite material |
| JPS6430977A (en) * | 1987-07-22 | 1989-02-01 | Mitsubishi Electric Corp | Melting plug for high pressure equipment |
| JPH02159356A (en) * | 1988-12-13 | 1990-06-19 | Yamaha Corp | Production of laminated material |
| JP2510004Y2 (en) * | 1989-10-31 | 1996-09-11 | 宣行 杉村 | Spring type safety valve with temperature fuse |
| US5577740A (en) * | 1994-10-19 | 1996-11-26 | Loral Fairchild Corp. | Thermal activated self-releasing seal for boiler |
| JP2000002353A (en) * | 1998-06-12 | 2000-01-07 | Yazaki Corp | Thermal fuse valve |
| JP2005282764A (en) * | 2004-03-30 | 2005-10-13 | Toyota Motor Corp | Safety valve for high pressure gas tank |
-
2010
- 2010-12-20 JP JP2010282540A patent/JP5775688B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012132475A (en) | 2012-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5775688B2 (en) | Soluble valve for safety valve | |
| CN104896164B (en) | Safety valve | |
| CA2902779C (en) | Fusible plug type pressure relief valve | |
| JP2004263786A (en) | Safety valve | |
| US5255809A (en) | Compressed gas container with shape memory alloy pressure relief member | |
| JP2009275861A (en) | Safety valve | |
| JP2011517335A5 (en) | ||
| JP2015078709A (en) | Safety valve | |
| CN204985905U (en) | Automatic temperature -sensing valve of mechanical type | |
| JP6387273B2 (en) | safety valve | |
| US9901762B2 (en) | Method and mechanism for fast evacuation of a pressurized vessel | |
| JP7054515B2 (en) | Fusible plug type safety valve | |
| US20060175703A1 (en) | Thermally responsive pressure relief plug and method of making the same | |
| CN112969884B (en) | Valve device for gaseous medium and tank device for storing compressed fluid | |
| CA2482308A1 (en) | A safety valve for pressurized tanks, and a tank provided with said valve | |
| US8083987B2 (en) | Buoyant plugs for liquid metal control | |
| JP4873156B2 (en) | Melting plug | |
| JP4318293B2 (en) | High pressure gas container | |
| JP6575844B2 (en) | safety valve | |
| JP4088457B2 (en) | Safety valve for pressure vessel | |
| JP2005282764A (en) | Safety valve for high pressure gas tank | |
| KR102563105B1 (en) | Pressure relief device for high pressure cylinder | |
| CN201909080U (en) | Fusible alloy joint | |
| JP5012768B2 (en) | Manufacturing method of fusible stopper | |
| JP5679392B1 (en) | safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20131218 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20141110 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20141118 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141224 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150609 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150706 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5775688 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |