JP5248351B2 - Valves used in fire extinguishing equipment - Google Patents

Valves used in fire extinguishing equipment Download PDF

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JP5248351B2
JP5248351B2 JP2009019349A JP2009019349A JP5248351B2 JP 5248351 B2 JP5248351 B2 JP 5248351B2 JP 2009019349 A JP2009019349 A JP 2009019349A JP 2009019349 A JP2009019349 A JP 2009019349A JP 5248351 B2 JP5248351 B2 JP 5248351B2
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valve
sleeve
connecting pipe
pipe
stopper member
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JP2010172526A (en
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顕司 米山
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Nohmi Bosai Ltd
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Description

本発明は、消火液が送られる配管に設けられる例えば一斉開放弁や流水検知装置などの弁を備えた消火設備、該消火設備に用いられる弁に関する。   The present invention relates to a fire extinguishing facility provided with a valve such as a simultaneous open valve or a water flow detector provided in a pipe through which a fire extinguishing liquid is sent, and a valve used in the fire extinguishing facility.

配管途中に設けられる弁類が老朽化したり、あるは故障したりした際、これを交換する必要が生ずる。交換する弁類と同一形式のものが製造中止となっていた場合、代替品を用いることになる。
交換の対象となった弁類と代替品との面間距離つまり弁類の一次側と二次側とのフランジ面の距離が異なっていた場合には、代替品の面間距離に合わせるように配管の手直しが必要となる。
しかしながら、このような手直し作業は煩雑である。
そこで、このような煩雑な作業を不要とすることを目的として、面間距離を調整可能にした弁が知られている。 When valves provided in the middle of the piping are worn out or broken, it becomes necessary to replace them. If a valve of the same type as the valve to be replaced has been discontinued, an alternative will be used.
If the distance between faces of the valve to be replaced and the substitute, that is, the flange face distance between the primary side and the secondary side of the valves is different, adjust the distance between the faces of the substitute. Reworking of piping is necessary.
However, such rework work is complicated.
Therefore, there is known a valve that can adjust the inter-surface distance for the purpose of eliminating such a complicated operation.

このような面間距離の調整が可能な弁の一例として、例えば特許文献１の従来技術の項に以下のようなものが記載されている。
弁本体と給水配管に接続する可動フランジとで弁を構成しており、弁本体の弁箱の受口に可動フランジの挿口を挿入している。管に接続するときには、管のフランジとの距離を可動フランジの出退によって面間距離を調整し、その後に可動フランジを弁箱の受口周囲の固定フランジに通常のボルト・ナットで固定するとしている。
なお、その後可動フランジと給水配管のフランジとをボルト・ナットで固定する。こうして可動フランジは両側が固定され動かなくなる。 As an example of such a valve capable of adjusting the inter-surface distance, for example, the following is described in the prior art section of Patent Document 1.
A valve is composed of a valve body and a movable flange connected to the water supply pipe, and an insertion port of the movable flange is inserted into a valve box receiving port of the valve body. When connecting to the pipe, the distance between the pipe flange and the movable flange is adjusted by adjusting the distance between the faces, and then the movable flange is fixed to the fixed flange around the valve box socket with normal bolts and nuts. Yes.
After that, the movable flange and the flange of the water supply pipe are fixed with bolts and nuts. Thus, the movable flange is fixed on both sides and cannot move.

特開２００４−１２５０４８号公報JP 2004-125048 A

確かに、特許文献１に記載のものであれば、弁類の面間距離の調整は可能である。
しかしながら、消火設備に設ける弁に関しては、次のような事情がある。
火災は地震の際に起こることが多いが、地震の影響で給水配管などが破損すると、その後に発生する火災の消火ができなくなってしまう虞がある。
ところが、特許文献１に記載のものでは、面間距離を調整した後、可動フランジは給水配管のフランジと弁箱の両方に固定される構造であるため、この部分での耐震性の向上ということは期待できない。 Certainly, if it is a thing of patent document 1, the adjustment of the distance between the surfaces of valves is possible.
However, there are the following circumstances regarding the valves provided in the fire extinguishing equipment.
Fires often occur in the event of an earthquake, but if the water supply piping or the like is damaged due to the earthquake, there is a risk that the fire that occurs thereafter cannot be extinguished.
However, in the thing of patent document 1, after adjusting the distance between surfaces, since a movable flange is a structure fixed to both the flange of a water supply piping, and a valve box, it means that it is an improvement in earthquake resistance in this part. Cannot be expected.

本発明は、代替品への交換に際して面間距離の違いに対応可能であると共に耐震性の向上を可能にした消火設備、該消火設備に用いる弁を提供することを目的としている。   It is an object of the present invention to provide a fire extinguishing equipment that can cope with a difference in distance between surfaces when replacing with an alternative product and that can improve earthquake resistance, and a valve used in the fire extinguishing equipment.

（１）本発明に係る消火設備は、弁本体の一次側及び／又は二次側と、これら一次側及び／又は二次側に連結される給水配管を、前記弁本体の一次側及び／または二次側に面間方向に出退可能に連結された連結管を介して連結し、連結状態において前記連結管と前記弁本体が相対移動可能な状態になっていることを特徴とするものである。 (1) The fire extinguishing equipment according to the present invention includes a primary side and / or a secondary side of a valve body, and a water supply pipe connected to the primary side and / or the secondary side, the primary side of the valve body and / or It is connected via a connecting pipe connected to the secondary side so as to be able to move in and out of the plane, and in the connected state, the connecting pipe and the valve body are relatively movable. is there.

（２）本発明に係る弁は、消火設備に用いられる弁であって、該弁の弁本体の一次側及び／又は二次側にスリーブを有し、該スリーブの両端部には段部が形成されてなり、該スリーブには面間方向に出退可能に連結管が取り付けられ、該連結管は前記スリーブの両端部に設けられた段部の間で移動可能になっていると共に、端部に給水配管に固定連結するための連結手段が設けられてなり、
前記連結管を出退させたときに、前記スリーブに形成した段部に当接して前記連結管とスリーブの相対移動を規制するストッパ部材を前記連結管の前記弁本体側に着脱可能に設けてなり、
該ストッパ部材は、前記スリーブの外周面に当接するリング状をしており、前記ストッパ部材と前記連結管の端部との間にシールリングが装着されていることを特徴とするものである。
(2) The valve according to the present invention is a valve used in fire extinguishing equipment, and has a sleeve on the primary side and / or the secondary side of the valve body of the valve, and step portions are provided at both ends of the sleeve. The connecting pipe is attached to the sleeve so as to be able to move in and out in the direction between the surfaces, and the connecting pipe is movable between the step portions provided at both ends of the sleeve. Connecting means for fixedly connecting to the water supply pipe in the part,
When brought into retreat out of the said connection pipe, provided detachably stopper member for restricting the relative movement of the connecting tube and the sleeve in contact with a stepped portion formed on the sleeve in the valve body side of the connecting pipe Become
The stopper member has a ring shape that comes into contact with the outer peripheral surface of the sleeve, and a seal ring is mounted between the stopper member and the end of the connecting pipe .

本発明の消火設備においては、弁本体の一次側及び／又は二次側と、これら一次側及び／又は二次側に連結される給水配管を、前記弁本体の一次側及び／または二次側に面間方向に出退可能に連結された連結管を介して連結し、連結状態において前記連結管と前記弁本体が相対移動可能な状態になっているので、例えば配管レイアウトの変更等があるような場合にも弁本体の面間距離を調整でき、このような配管レイアウト変更への対応が容易にできる。また、地震時の揺れに際して弁の破損を防止でき、耐震性を向上できる。さらに、弁については、弁の交換に際して、あるいは新設の設置に際して面間距離を調整可能であると共に耐震性に優れるという効果を奏する。   In the fire extinguishing equipment of the present invention, the primary side and / or the secondary side of the valve body and the water supply pipe connected to the primary side and / or the secondary side are connected to the primary side and / or the secondary side of the valve body. The connection pipe and the valve main body are in a state in which the connection main body and the valve main body can move relative to each other in a connected state. Even in such a case, the distance between the faces of the valve body can be adjusted, and it is possible to easily cope with such a piping layout change. In addition, the valve can be prevented from being damaged in the event of shaking during an earthquake, and the earthquake resistance can be improved. Further, the valve has an effect that the inter-surface distance can be adjusted at the time of replacement of the valve or at the time of installation of a new installation and the vibration resistance is excellent.

本発明の一実施の形態に係る弁の説明図であり、本発明の弁を一斉開放弁とした場合の説明図である。It is explanatory drawing of the valve which concerns on one embodiment of this invention, and is explanatory drawing at the time of making the valve of this invention into a simultaneous open valve. 図１の丸で囲んで示すＡ部の拡大図である。FIG. 2 is an enlarged view of a portion A shown by being circled in FIG. 1. 本発明の弁に用いるストッパ部材の説明図である。It is explanatory drawing of the stopper member used for the valve of this invention. 図２における丸で囲んで示すＢ部の拡大図である。FIG. 3 is an enlarged view of a portion B shown by being circled in FIG. 2. 本発明の一実施の形態に係る弁の連結管の動作説明図である。It is operation | movement explanatory drawing of the connecting pipe of the valve which concerns on one embodiment of this invention. 本発明の一実施の形態の説明図であって、連結管を長尺のものに取り替えた状態を示す図である。It is explanatory drawing of one embodiment of this invention, Comprising: It is a figure which shows the state which replaced the connection pipe with the long thing. 本発明の一実施の形態における他の態様の説明図である。It is explanatory drawing of the other aspect in one embodiment of this invention. 本発明の一実施の形態における他の態様の説明図である。It is explanatory drawing of the other aspect in one embodiment of this invention.

図１は本発明の一実施の形態の断面図であり、本発明の弁の一例として一斉開放弁を示している。
本実施の形態に係る一斉開放弁１は、弁本体３の一次側にスリーブ５を有し、該スリーブ５に、面間方向に出退可能に取り付けられた連結管７を備えている。また、連結管７の一端側には、給水配管（図示なし）と連結するためのフランジ９を備えている。フランジ９と給水配管のフランジとは、連結管７を水平方向に移動させることにより面間調整をした後にボルト・ナットで固定される。このフランジ９とボルト・ナットが、連結手段の一例である。
上記のように構成された一斉開放弁１は、給水配管に設置されて固定された通常時の状態で、連結管７が面間方向に所定の可動範囲（図１参照）を移動できるようにされている。ここで面間方向とは、連結管７が弁本体３から離れる方向と弁本体３に近づく方向の水平方向のことをいう。 FIG. 1 is a sectional view of an embodiment of the present invention, and shows a simultaneous opening valve as an example of the valve of the present invention.
The simultaneous opening valve 1 according to the present embodiment has a sleeve 5 on the primary side of the valve body 3, and includes a connecting pipe 7 attached to the sleeve 5 so as to be movable in and out of the plane. Further, a flange 9 for connecting to a water supply pipe (not shown) is provided on one end side of the connecting pipe 7. The flange 9 and the flange of the water supply pipe are fixed with bolts and nuts after adjusting the distance by moving the connecting pipe 7 in the horizontal direction. The flange 9 and the bolt / nut are an example of a connecting means.
The simultaneous opening valve 1 configured as described above is configured so that the connecting pipe 7 can move in a predetermined movable range (see FIG. 1) in the inter-surface direction in a normal state where the valve is installed and fixed in the water supply pipe. Has been. Here, the face-to-face direction refers to a horizontal direction in which the connecting pipe 7 is away from the valve main body 3 and in the direction in which the connecting pipe 7 approaches the valve main body 3.

図２は図１の丸で囲んで示すＡ部の拡大図である。図２に示すように、連結管７の弁本体側端部にはストッパ部材１１が装着されている。ストッパ部材１１は、図３に示すように、半円弧状の部材の両端部をボルト・ナットからなる連結具１３で連結してなる全体形状がリング状をした部材である。ストッパ部材１１は、その内周面１５が全周にわたって鉤状になっており、連結管７の端部に形成した凹部８にその鉤状の部分１１ａが嵌合するようになっている。鉤状部分１１ａが嵌合される凹部８の外側であって段状に形成されたシール部１０にはシールリング１７ａが装着されてストッパ部材１１と連結管７の後端部とで挟まれた状態にある。
また、ストッパ部材１１の弁側の内周面１５の一部１５ａがスリーブ５の外周面に当接しており、この状態で連結管７の内周面とスリーブ５の外周面との間に微小な隙間１９が形成されている。
スリーブ５の弁本体側は拡径されて段部としての段壁２１が形成され、ストッパ部材１１の弁本体３側の端面が一斉開放弁１のスリーブ５に形成された段壁２１（図５参照）に当接するようになっており、これによって、連結管７の弁本体３側への移動が規制されている。 FIG. 2 is an enlarged view of a portion A shown by being circled in FIG. As shown in FIG. 2, a stopper member 11 is attached to the end of the connecting pipe 7 on the valve body side. As shown in FIG. 3, the stopper member 11 is a member in which the entire shape formed by connecting both end portions of a semicircular arc-shaped member with a connector 13 made of bolts and nuts is a ring shape. The stopper member 11 has an inner peripheral surface 15 formed in a bowl shape over the entire circumference, and the bowl-shaped portion 11 a is fitted into a recess 8 formed in an end portion of the connecting pipe 7. A seal ring 17a is attached to the seal portion 10 formed in a step shape outside the recess 8 into which the flange-shaped portion 11a is fitted, and is sandwiched between the stopper member 11 and the rear end portion of the connecting pipe 7. Is in a state.
Further, a part 15 a of the inner peripheral surface 15 on the valve side of the stopper member 11 is in contact with the outer peripheral surface of the sleeve 5, and in this state, a minute amount is formed between the inner peripheral surface of the connecting pipe 7 and the outer peripheral surface of the sleeve 5. A gap 19 is formed.
The valve body side of the sleeve 5 is enlarged in diameter to form a step wall 21 as a step portion, and the end surface of the stopper member 11 on the valve body 3 side is formed on the sleeve 5 of the simultaneous release valve 1 (FIG. 5). (Refer to FIG. 2), and the movement of the connecting pipe 7 toward the valve body 3 is restricted.

図４は、図２の丸で囲んで示すＢ部の拡大図である。図４に示すように、一斉開放弁１のスリーブ５の給水配管側の端部には、径方向に突出する段部２３が全周に亘って形成されており、この段部２３に形成した内周溝にはシールリング１７ｂが装着されている。段部２３の周面が連結管７の内周面に当接している。ここで段部２３の高さは、ストッパ部材１１の内周面１５から突出している一部１５ａの高さとほぼ同じであり、この場合にはスリーブ５の外周面と連結管７の内周面との間の隙間１９は一定の間隔となる。連結管７が弁本体３から離れる方向に移動したとき、すなわち連結管７が伸出したときに、図５に示すように、段部２３とストッパ部材１１（の一部１５ａ）が当接して、連結管７の移動を規制し、連結管７がスリーブ５から外れるのを防止する。
以上の説明から明らかなように、連結管７は、ストッパ部材１１がスリーブ５の段壁２１に当接する位置（図１、図２参照）から、ストッパ部材１１が段部２３に当接する位置（図５参照）まで移動可能であり、この範囲で面間距離の調整を可能としている。 FIG. 4 is an enlarged view of a portion B shown by being circled in FIG. As shown in FIG. 4, a step portion 23 that protrudes in the radial direction is formed on the end portion of the sleeve 5 of the simultaneous release valve 1 on the side of the water supply pipe, and is formed on the step portion 23. A seal ring 17b is attached to the inner circumferential groove. The peripheral surface of the step portion 23 is in contact with the inner peripheral surface of the connecting pipe 7. Here, the height of the stepped portion 23 is substantially the same as the height of the portion 15 a protruding from the inner peripheral surface 15 of the stopper member 11. In this case, the outer peripheral surface of the sleeve 5 and the inner peripheral surface of the connecting pipe 7 are used. The gap 19 between them is a constant interval. When the connecting pipe 7 moves away from the valve body 3, that is, when the connecting pipe 7 extends, as shown in FIG. 5, the step portion 23 and the stopper member 11 (part 15a) abut against each other. The movement of the connecting pipe 7 is restricted, and the connecting pipe 7 is prevented from being detached from the sleeve 5.
As is apparent from the above description, the connecting pipe 7 has a position where the stopper member 11 contacts the step portion 23 from a position where the stopper member 11 contacts the step wall 21 of the sleeve 5 (see FIGS. 1 and 2). The distance between the surfaces can be adjusted within this range.

以上のように構成された本実施の形態の一斉開放弁１は、例えば弁類の交換用として用いる場合には、連結管７が出退可能であるので、面間距離の調整が自在の弁として用いることができる。
また、新設の弁として利用する場合においても、配管の寸法の誤差を吸収できるので、設置作業を容易にできるという効果がある。
なお、新設の弁として利用する場合には、連結管７の弁本体側端部がスリーブ５の軸方向中程に位置するように設置するのが望ましい。このように設置することで、連結管７と一斉開放弁１のスリーブ５が面間方向いずれの方向にも相対移動可能となり、地震時において、連結管７が水平方向に移動して衝撃を吸収し、一斉開放弁１に給水配管側からの引張力が作用するのを防止でき、一斉開放弁１を保護できる。 The simultaneous opening valve 1 of the present embodiment configured as described above is a valve that can adjust the inter-surface distance because the connecting pipe 7 can be withdrawn and retracted, for example, when used for replacement of valves. Can be used as
In addition, even when used as a new valve, an error in piping dimensions can be absorbed, so that the installation work can be facilitated.
When used as a new valve, it is desirable that the valve main body side end of the connecting pipe 7 is located in the middle of the sleeve 5 in the axial direction. By installing in this way, the connecting pipe 7 and the sleeve 5 of the simultaneous release valve 1 can be moved relative to each other in the inter-surface direction, and in the event of an earthquake, the connecting pipe 7 moves in the horizontal direction to absorb the impact. And it can prevent that the tensile force from the feed water piping side acts on the simultaneous opening valve 1, and can protect the simultaneous opening valve 1.

なお、本実施の形態のストッパ部材１１は連結部のボルトを外すことによって取り外しが可能であり、ストッパ部材１１を取り外すことにより、連結管７を一斉開放弁１から取り外すことができる。それ故に、管部の長さが異なる連結管７に交換することもでき、例えば隣接する給水配管との距離が長く、長い面間距離が必要となる場合には、別途管部が長い連結管７を一斉開放弁１に取り付けるようにしてもよい。図６は、管部が長尺の連結管７を取り付けた状態を示す図である。   In addition, the stopper member 11 of this Embodiment can be removed by removing the bolt of a connection part, and the connection pipe 7 can be removed from the simultaneous release valve 1 by removing the stopper member 11. Therefore, it is possible to replace the connecting pipe 7 with a pipe having a different length. For example, when the distance between adjacent water supply pipes is long and a long inter-surface distance is required, the connecting pipe having a long pipe part is required. 7 may be attached to the simultaneous release valve 1. FIG. 6 is a view showing a state in which the long connecting pipe 7 is attached to the pipe portion.

なお、上記の実施の形態では、弁の例として消火設備に使用する一斉開放弁を例に挙げて説明したが、本発明はこれに限られるものではなく、例えば図７に示すような逆止弁からなり、消火設備に使用される流水検知装置２５であってよいし、図８に示すような一般的な手動式の開閉弁２７であってもよい。
また、連結管７における、給水配管に固定連結するための連結手段としては、図１、図７に示すようなフランジ９であってもよいし、あるいは図８に示すように連結管７にネジ部２９を設けたネジ込み式であってもよい。 In the above-described embodiment, the simultaneous opening valve used in the fire extinguishing equipment is described as an example of the valve. However, the present invention is not limited to this, and for example, a check as shown in FIG. It may be a flowing water detection device 25 that includes a valve and is used for fire extinguishing equipment, or a general manual on-off valve 27 as shown in FIG.
Further, as a connecting means for connecting to the water supply pipe in the connecting pipe 7, a flange 9 as shown in FIGS. 1 and 7 may be used. Alternatively, as shown in FIG. A screw-in type provided with a portion 29 may be used.

また、上記の例では、連結管７を弁の一次側に設ける例を示したが、二次側に設けるようにしてもよいし、あるいは両方に設けるようにしてもよい。   In the above example, the connecting pipe 7 is provided on the primary side of the valve. However, the connecting pipe 7 may be provided on the secondary side or on both sides.

なお、上記の実施の形態では弁単体について説明したが、上記の実施の形態に示した弁を消火設備の一部に用いることで、本発明の消火設備が構成される。そのような消火設備の主な構成の一例を示すと、弁の一次側に給水配管が接続され、該給水配管の基端側には給水源となる貯水槽などが設けられ、また、弁の二次側には二次側配管が接続され、該二次側配管にはスプリンクラヘッドなどが設置される。そして、給水配管へ送水するためのポンプ類が設置される。   In addition, although said valve demonstrated the single valve | bulb in said embodiment, the fire fighting equipment of this invention is comprised by using the valve shown in said embodiment for a part of fire fighting equipment. An example of the main configuration of such a fire extinguishing system is as follows: a water supply pipe is connected to the primary side of the valve, a water tank serving as a water supply source is provided on the base end side of the water supply pipe, and the valve A secondary side pipe is connected to the secondary side, and a sprinkler head or the like is installed on the secondary side pipe. Pumps for supplying water to the water supply pipe are installed.

１ 一斉開放弁 ３ 弁本体 ５ スリーブ
７ 連結管 ９ フランジ １１ ストッパ部材
１３ 連結具 １５ 内周面 １５ａ 内周面の一部
１７ａ、１７ｂ シールリング １９ 隙間
２１ 段壁 ２３ 段部 ２５ 流水検知装置
２７ 開閉弁 ２９ ネジ部 DESCRIPTION OF SYMBOLS 1 Simultaneous release valve 3 Valve body 5 Sleeve 7 Connecting pipe 9 Flange 11 Stopper member 13 Connecting tool 15 Inner peripheral surface 15a Part of inner peripheral surface 17a, 17b Seal ring 19 Clearance 21 Step wall 23 Step portion 25 Flow detection device 27 Opening / closing Valve 29 Screw part

Claims (1)

消火設備に用いられる弁であって、該弁の弁本体の一次側及び／又は二次側にスリーブを有し、該スリーブの両端部には段部が形成されてなり、該スリーブには面間方向に出退可能に連結管が取り付けられ、該連結管は前記スリーブの両端部に設けられた段部の間で移動可能になっていると共に、端部に給水配管に固定連結するための連結手段が設けられてなり、
前記連結管を出退させたときに、前記スリーブに形成した段部に当接して前記連結管とスリーブの相対移動を規制するストッパ部材を前記連結管の前記弁本体側に着脱可能に設けてなり、
該ストッパ部材は、前記スリーブの外周面に当接するリング状をしており、前記ストッパ部材と前記連結管の端部との間にシールリングが装着されていることを特徴とする弁。

A valve for use in fire extinguishing equipment, having a sleeve on the primary side and / or the secondary side of the valve body of the valve, and having stepped portions formed at both ends of the sleeve. A connecting pipe is attached so as to be able to move in and out in the middle direction, and the connecting pipe is movable between the step portions provided at both ends of the sleeve, and fixedly connected to the water supply pipe at the end. A connecting means is provided,
When brought into retreat out of the said connection pipe, provided detachably stopper member for restricting the relative movement of the connecting tube and the sleeve in contact with a stepped portion formed on the sleeve in the valve body side of the connecting pipe Become
The stopper member has a ring shape in contact with the outer peripheral surface of the sleeve, and a seal ring is mounted between the stopper member and an end of the connecting pipe .

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