JP2007333171A

JP2007333171A - Trap device

Info

Publication number: JP2007333171A
Application number: JP2006168599A
Authority: JP
Inventors: Takahiro Uchisawa; 孝広内澤
Original assignee: BEN KK; Venn Co Ltd
Current assignee: BEN KK; Venn Co Ltd
Priority date: 2006-06-19
Filing date: 2006-06-19
Publication date: 2007-12-27

Abstract

<P>PROBLEM TO BE SOLVED: To secure the support strength of an extensible member by fixing one end of the extensible member to a body, and to absorb axial deviation of a valve member with respect to a passage opening. <P>SOLUTION: The trap device comprising a body 1 having an inlet 2 and an outlet 3 of a fluid is provided with: a chamber 11 communicating with the inlet 2 side and allowing the fluid to flow through; a passage 12 communicating with the chamber 11 and the outlet 3 side; and a valve mechanism 20 provided in the chamber 11 to open/close the chamber 11 side opening 12a of the passage 12. The valve mechanism 20 comprises: the valve member 21 formed to abut on the edge of the opening 12a of the passage 12 and closing the passage 12 when abutting on the edge of the opening 12a; and the extensible member 22 extended at temperature higher than a predetermined temperature and contracted at temperature lower than the predetermined temperature, with one end fixed to the internal wall of the body 1 and with the other end provided with the valve member 21. The trap device also comprises: a support mechanism 40 supporting the valve member 21 to the extensible member 22 movably along a plane orthogonal to the extending/contracting direction of the extensible member 22, and a regulating mechanism 50 regulating the moving range of the valve member 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、例えば、蒸気等が流通する管内に溜まった水を自動的に排出するトラップ装置に関する。 The present invention relates to a trap device that automatically discharges water accumulated in a pipe through which, for example, steam flows.

従来、この種のトラップ装置としては、例えば、特許文献１（特開平１０−３８１９５号公報）に記載されたものが知られている。 Conventionally, as this type of trapping device, for example, a device described in Patent Document 1 (Japanese Patent Laid-Open No. 10-38195) is known.

図７及び図８に示すように、このトラップ装置は、流体の入口２及び出口３を有した本体１を備えている。本体１には、その内部に入口２側に連通し流体が流れる部屋１１が設けられるとともに部屋１１と出口３側に連通する通路１２が設けられている。また、本体１に設けた部屋１１内には、通路１２の部屋１１側開口１２ａを開閉する弁機構２０が設けられている。
詳しくは、本体１は、内部に弁室４ａが形成されるとともに開口を有した弁箱４と、弁箱４の開口を閉塞するための蓋体５と、弁箱４の弁室４ａに挿入され部屋１１及び通路１２を形成する中子部材１０とからなる。中子部材１０は、蓋体５に取り付けられて部屋１１を形成する中子蓋体１３と、通路１２を形成する中子本体１４とからなる。中子蓋体１３は、保持穴１８と１対の溝孔１９とを有している。 As shown in FIGS. 7 and 8, the trap device includes a main body 1 having a fluid inlet 2 and an outlet 3. The main body 1 is provided with a chamber 11 through which fluid flows to the inlet 2 side and a passage 12 that communicates with the chamber 11 and the outlet 3 side. A valve mechanism 20 that opens and closes the room 11 side opening 12 a of the passage 12 is provided in the room 11 provided in the main body 1.
Specifically, the main body 1 is inserted into the valve chamber 4 having a valve chamber 4 a formed therein and having an opening, a lid 5 for closing the opening of the valve box 4, and the valve chamber 4 a of the valve box 4. And the core member 10 forming the chamber 11 and the passage 12. The core member 10 includes a core lid body 13 that is attached to the lid body 5 to form the room 11, and a core body 14 that forms the passage 12. The core lid 13 has a holding hole 18 and a pair of slots 19.

弁機構２０は、通路１２の開口１２ａ端縁に当接可能に形成され当接時に通路１２を閉塞する弁部材２１と、一端が本体１の内壁に支持され他端に弁部材２１が設けられるとともに所定温度よりも高いと他端側に伸長し所定温度よりも低いと一端側に収縮する伸縮部材２２とを備えて構成されている。弁部材２１は、半球状に形成されている。伸縮部材２２は、ベローズで構成され、中子蓋体１３を介して本体１に支持されており、その一端に中子蓋体１３の裏面に形成された保持穴１８に挿入される支持部２８が突設されている。支持部２８は、細くくびれたネック部２８ａを有し、保持穴１８に挿入される。この支持部２８は、中子蓋体１３の溝孔１９に挿入される支持板２９で支持される。 The valve mechanism 20 is formed so as to be able to contact the edge of the opening 12a of the passage 12 and closes the passage 12 when contacted, and one end is supported by the inner wall of the main body 1 and the valve member 21 is provided at the other end. At the same time, the elastic member 22 is configured to extend to the other end side when the temperature is higher than the predetermined temperature and contract to the one end side when the temperature is lower than the predetermined temperature. The valve member 21 is formed in a hemispherical shape. The expansion / contraction member 22 is formed of a bellows, is supported by the main body 1 via the core lid 13, and a support portion 28 that is inserted into one end of the holding hole 18 formed on the back surface of the core lid 13. Is protruding. The support portion 28 has a narrow neck portion 28 a and is inserted into the holding hole 18. The support 28 is supported by a support plate 29 that is inserted into the slot 19 of the core lid 13.

支持板２９は、挿入孔２９ａとこの挿入孔２９ａに通じる支持孔２９ｂとを有している。挿入孔２９ａは支持板２９の中心から支持板２９の長さ方向に沿ってずれた位置に形成され、支持孔２９ｂは支持板２９の中心の周囲に形成されている。挿入孔２９ａは、内径が支持部２８の直径より大きく形成されており、支持部２８が挿入可能になっている。また、支持孔２９ｂは、その幅がネック部２８ａの直径より大きく支持部２８の直径より小さく形成されている。この支持板２９による弁機構２０の取り付けは、支持板２９を溝孔１９に挿入して、保持穴１８と挿入孔２９ａを一致させたときに挿入孔２９ａに支持部２８を挿入して保持穴１８に支持部２８を挿入する。次に、そのまま支持板２９を更に溝孔１９に挿入し、支持孔２９ｂと保持穴１８とを一致させる。 The support plate 29 has an insertion hole 29a and a support hole 29b communicating with the insertion hole 29a. The insertion hole 29 a is formed at a position shifted from the center of the support plate 29 along the length direction of the support plate 29, and the support hole 29 b is formed around the center of the support plate 29. The insertion hole 29a has an inner diameter larger than the diameter of the support portion 28, and the support portion 28 can be inserted therein. Further, the support hole 29b is formed so that its width is larger than the diameter of the neck portion 28a and smaller than the diameter of the support portion 28. The attachment of the valve mechanism 20 by the support plate 29 is performed by inserting the support plate 28 into the insertion hole 29a when the support plate 29 is inserted into the slot 19 and the holding hole 18 is aligned with the insertion hole 29a. A support portion 28 is inserted into 18. Next, the support plate 29 is further inserted into the groove hole 19 as it is, and the support hole 29 b and the holding hole 18 are aligned.

このトラップ装置によれば、入口２から入った蒸気や水等の流体は部屋１１に入る。部屋１１内に、低温の水等が流れ込んで部屋１１の内部温度が所定温度より低くなると、伸縮部材２２が収縮して弁部材２１が通路１２の開口１２ａ端縁から離れ入口２側の流体が出口３から排出される。また、部屋１１内が高温の蒸気等で満たされて、流体の温度が所定温度より高くなると、伸縮部材２２が伸長して弁部材２１が通路１２の開口１２ａ端縁に当接し、通路１２を閉にする。
この際、伸縮部材２２の伸長方向にばらつきがあって、弁機構２０の弁部材２１と通路１２の開口１２ａの軸ずれが生じても、弁機構２０は支持部２８が支持板２９に沿って保持穴１８の内部で移動可能なためスライドする。また、必要に応じて支持板２９も溝孔１９内でスライドする。これにより、弁部材２１と通路１２の開口１２ａとに軸ずれが生じても、この軸ずれを吸収して通路１２を閉塞する。 According to this trap apparatus, fluid such as steam and water entering from the inlet 2 enters the room 11. When low-temperature water or the like flows into the room 11 and the internal temperature of the room 11 becomes lower than a predetermined temperature, the expansion / contraction member 22 contracts and the valve member 21 moves away from the edge of the opening 12a of the passage 12 so that the fluid on the inlet 2 side flows. It is discharged from the outlet 3. When the chamber 11 is filled with high-temperature steam or the like and the temperature of the fluid becomes higher than a predetermined temperature, the expansion / contraction member 22 extends and the valve member 21 contacts the edge of the opening 12a of the passage 12, Close.
At this time, even if the extension direction of the expansion / contraction member 22 varies and the shaft member 21 of the valve mechanism 20 and the opening 12 a of the passage 12 are misaligned, the valve mechanism 20 has the support portion 28 along the support plate 29. Since it can move inside the holding hole 18, it slides. Further, the support plate 29 also slides in the slot 19 as necessary. Thereby, even if an axial deviation occurs between the valve member 21 and the opening 12 a of the passage 12, the axial deviation is absorbed and the passage 12 is closed.

特開平１０−３８１９５号公報Japanese Patent Laid-Open No. 10-38195

ところで、このようなトラップ装置においては、支持部２８が本体に支持された状態で、しかも、支持部２８がスライド移動して軸ずれを吸収するが、支持部２８が、本体１への支持する機能と弁機構２０の弁部材２１のスライド移動させる機能を兼ねるので、支持部２８に係る負荷が大きくなり、そのため、この負荷により支持部２８が破損する虞があった。支持部２８が破損すると、弁機構２０が本体１から脱落し、通路１２が閉じたままになりトラップ装置として機能しなくなる。 By the way, in such a trap device, while the support portion 28 is supported by the main body, the support portion 28 slides and absorbs the axial deviation, but the support portion 28 supports the main body 1. Since both the function and the function of sliding the valve member 21 of the valve mechanism 20 are combined, the load on the support portion 28 is increased. Therefore, the support portion 28 may be damaged by this load. When the support portion 28 is broken, the valve mechanism 20 is detached from the main body 1 and the passage 12 remains closed, and the trap device does not function.

本発明は上記の問題点に鑑みて為されたもので、伸縮部材の一端を本体に固定して伸縮部材の支持強度を確保し、かつ、弁部材の通路の開口に対する軸ずれを吸収できるようにしたトラップ装置を提供することを目的とする。 The present invention has been made in view of the above-described problems, so that one end of the expansion / contraction member is fixed to the main body to ensure the support strength of the expansion / contraction member, and the axial displacement of the valve member with respect to the opening of the passage can be absorbed. An object of the present invention is to provide a trap device.

このような目的を達成するための本発明のトラップ装置は、流体の入口及び出口を有した本体を備え、該本体内に入口側に連通し流体が流れる部屋を設けるとともに該部屋と出口側に連通する通路を設け、上記部屋内に上記通路の該部屋側開口を開閉する弁機構を設け、該弁機構を、上記通路の開口端縁に当接可能に形成され当接時に該通路を閉塞する弁部材と、一端が上記本体の内壁に支持され他端に上記弁部材が設けられるとともに所定温度よりも高いと他端側に伸長し所定温度よりも低いと一端側に収縮する伸縮部材とを備えて構成してなるトラップ装置において、上記伸縮部材の一端を上記本体に対して固定し、
上記弁部材を上記伸縮部材の伸縮方向と直交する平面に沿って該伸縮部材に移動可能に支持する支持機構と、上記弁部材の移動範囲を規制する規制機構とを備えて構成している。 In order to achieve such an object, the trap device of the present invention comprises a main body having an inlet and an outlet for fluid, a chamber is provided in the main body and communicates with the inlet side, and a fluid flows through the main body and the outlet side. A communicating passage is provided, and a valve mechanism for opening and closing the room-side opening of the passage is provided in the room. The valve mechanism is formed so as to be able to abut against the opening edge of the passage, and the passage is closed when abutting. A valve member having one end supported by the inner wall of the main body and the other end provided with the valve member, and extending to the other end when the temperature is higher than a predetermined temperature and contracting to the one end when the temperature is lower than the predetermined temperature In the trap device configured to include, one end of the expansion and contraction member is fixed to the main body,
The valve member is configured to include a support mechanism that movably supports the valve member along a plane orthogonal to the expansion / contraction direction of the expansion / contraction member, and a restriction mechanism that restricts a movement range of the valve member.

このトラップ装置は、予め、例えば、ボイラ等の装置の蒸気管に接続しておく。そして入口から流体が部屋内に流入すると、この流体の温度が低い場合には、伸縮部材が収縮して弁部材が通路の入口側開口から離間し、入口側に接続された管の温度の低い流体が出口から排出されていく。また、流体の温度が高い場合には、伸縮部材が伸長して弁部材が入口側開口に近接していき、弁部材が開口端縁に当接して通路を閉塞する。
これにより、入口側に接続された管内において、流体が低温であるときには、この流体を外部に排出し、流体が高温であるときには管内に流体を留めておくことができる。これにより、ボイラ等の装置を効率よく作動させることができる。 This trap device is connected in advance to a steam pipe of a device such as a boiler, for example. When the fluid flows into the room from the inlet, when the temperature of the fluid is low, the expansion / contraction member contracts, the valve member moves away from the inlet side opening of the passage, and the temperature of the pipe connected to the inlet side is low. The fluid is discharged from the outlet. Also, when the temperature of the fluid is high, the expansion / contraction member extends and the valve member approaches the inlet side opening, and the valve member abuts on the opening edge to close the passage.
Thereby, in the pipe connected to the inlet side, when the fluid is at a low temperature, the fluid can be discharged to the outside, and when the fluid is at a high temperature, the fluid can be retained in the pipe. Thereby, apparatuses, such as a boiler, can be operated efficiently.

また、伸縮部材の伸長する際に、伸縮部材の伸長方向のばらつきが生じ、弁機構の弁部材と通路の開口の軸ずれが生じることがある。この場合、弁部材が支持機構により伸縮部材の伸縮方向と直交する平面に沿って移動可能に伸縮部材に支持されるので、弁部材の軸と通路の開口の軸とが合う方向に弁部材が移動する。これにより、軸ずれが生じてもこれを吸収して通路を閉塞することができる。また、伸縮部材を本体に対して固定して弁機構を本体に支持し、かつ、支持機構を設けて、この支持機構で弁部材を移動可能にしたので、弁機構の支持強度を確保しかつ、弁部材の軸と通路の部屋側開口軸との軸ずれに対応できる。即ち、伸縮部材の本体に対する支持部分に負荷がかかりにくくなり、弁機構の本体に対する支持部分を破損しにくくすることができる。また、規制機構を設けたので、過度の弁部材の移動が防止される。 Further, when the expansion / contraction member extends, variation in the expansion direction of the expansion / contraction member may occur, and an axial deviation between the valve member of the valve mechanism and the opening of the passage may occur. In this case, since the valve member is supported by the expansion / contraction member so as to be movable along a plane orthogonal to the expansion / contraction direction of the expansion / contraction member by the support mechanism, the valve member is aligned in a direction in which the axis of the valve member and the axis of the passage opening are aligned. Moving. Thereby, even if axial deviation arises, this can be absorbed and a passage can be closed. In addition, the expansion / contraction member is fixed to the main body, the valve mechanism is supported by the main body, and the support mechanism is provided so that the valve member can be moved by the support mechanism. Thus, it is possible to cope with an axial deviation between the axis of the valve member and the room side opening axis of the passage. That is, it is difficult to apply a load to the support portion of the expansion / contraction member with respect to the main body, and the support portion of the valve mechanism with respect to the main body can be hardly damaged. Moreover, since the restriction mechanism is provided, excessive movement of the valve member is prevented.

また、必要に応じ、上記支持機構を、上記伸縮部材の他端側に形成され該伸縮部材の伸縮方向に直交するスライド面を有したベースと、上記弁部材に設けられ上記ベースのスライド面に対して移動可能なスライダと、上記ベースに対して上記スライダをスライド可能に保持する保持部とを備えて構成している。
これにより、スライダがベースのスライド面に対して移動するので、弁部材を安定して移動させることができる。 In addition, if necessary, the support mechanism may be provided on a base having a slide surface formed on the other end side of the telescopic member and perpendicular to the telescopic direction of the telescopic member, and on the slide surface of the base provided on the valve member. The slider includes a movable slider, and a holding portion that slidably holds the slider with respect to the base.
Thereby, since a slider moves with respect to the slide surface of a base, a valve member can be moved stably.

更に、必要に応じ、上記スライダを上記弁体の外周に突出するフランジを備えた構成とし、上記保持部を上記スライダを囲繞するように上記ベースに突設された筒状体と、上記筒状体の内周に設けた溝に嵌入され上記スライダのフランジを押さえるＣリングとを備えて構成している。
これにより、保持部でスライダを保持する際には、フランジを筒状体内に入れ、溝にＣリングを嵌入する。そのため、スライダがＣリングで押さえられて保持されるので、簡単な構造でスライダをベースに対してスライド可能にできる。 Further, if necessary, the slider is provided with a flange that protrudes from the outer periphery of the valve body, and the holding portion projects from the base so as to surround the slider, and the cylindrical shape. And a C-ring that is fitted into a groove provided on the inner periphery of the body and holds the flange of the slider.
Thereby, when holding a slider with a holding | maintenance part, a flange is put in a cylindrical body and a C-ring is inserted in a groove | channel. Therefore, since the slider is pressed and held by the C-ring, the slider can be slid with respect to the base with a simple structure.

更にまた、必要に応じ、上記規制機構を、上記ベースまたは上記スライダのいずれか一方に突設される凸部と、上記ベースまたは上記スライダのいずれか他方に凹設され上記凸部が遊挿される凹部とを備え、上記弁部材の移動範囲を上記凸部と凹部とのクリアランスの範囲に設定している。
これにより、弁部材が移動範囲を超えて移動しようとすると、凸部の外周が凹部の内周に当接して、弁部材の移動を規制する。そのため、簡単な構造で、弁部材の移動の規制を確実に行なうことができる。 Furthermore, if necessary, the restricting mechanism is provided with a convex portion protruding from one of the base and the slider and a concave portion protruding from either the base or the slider so that the convex portion is loosely inserted. And a range of movement of the valve member is set within a clearance range between the convex portion and the concave portion.
Thereby, when the valve member tries to move beyond the moving range, the outer periphery of the convex portion comes into contact with the inner periphery of the concave portion, thereby restricting the movement of the valve member. Therefore, the movement of the valve member can be reliably controlled with a simple structure.

また、必要に応じ、上記伸縮部材の一端に雄ネジを設け、上記本体の内壁に雌ネジを設け、該雌ネジに上記雄ネジを螺着して上記伸縮部材を上記本体に固定している。
これにより、伸縮部材の本体に対する固定を確実に行なうことができる。また、伸縮部材の交換等も容易に行なうことができる。 Further, if necessary, a male screw is provided at one end of the elastic member, a female screw is provided on the inner wall of the main body, and the male screw is screwed to the female screw to fix the elastic member to the main body. .
Thereby, fixation with respect to the main body of an expansion-contraction member can be performed reliably. In addition, replacement of the expansion / contraction member can be easily performed.

本発明のトラップ装置によれば、伸縮部材の一端を上記本体に対して固定し、弁部材を伸縮部材の伸縮方向と直交する平面に沿って伸縮部材に移動可能に支持する支持機構を備えたので、伸縮部材の伸長する際に、伸縮部材の伸長方向のばらつきが生じ、弁機構の弁部材と通路の開口の軸ずれが生じても、弁部材の軸と通路の開口の軸とが合う方向に弁部材が移動して軸ずれを吸収し、通路を閉塞することができる。また、伸縮部材を本体に対して固定したので、支持強度を確保でき、弁機構の本体に対する支持部分に負荷がかかりにくくなり、弁機構の支持部分を破損しにくくすることができる。また、規制機構を設けたので、過度の弁部材の移動が防止される。 According to the trap device of the present invention, there is provided a support mechanism that fixes one end of the expansion / contraction member to the main body and supports the valve member movably on the expansion / contraction member along a plane orthogonal to the expansion / contraction direction of the expansion / contraction member. Therefore, when the expansion / contraction member is extended, even if the expansion direction of the expansion / contraction member varies and the valve member of the valve mechanism and the opening of the passage are misaligned, the shaft of the valve member and the shaft of the opening of the passage are aligned. The valve member can move in the direction to absorb the axial deviation and close the passage. Moreover, since the expansion / contraction member is fixed to the main body, the support strength can be secured, the load on the support portion of the valve mechanism with respect to the main body is hardly applied, and the support portion of the valve mechanism can be hardly damaged. Moreover, since the restriction mechanism is provided, excessive movement of the valve member is prevented.

以下、添付図面に基づいて、本発明の実施の形態に係るトラップ装置について詳細に説明する。尚、従来のトラップ装置と同様のものには同様の符号を付している。 Hereinafter, a trap device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the thing similar to the conventional trap apparatus.

図１及び図６には、トラップ装置を示している。トラップ装置は、流体の入口２及び出口３を有した本体１を備えている。本体１には、その内部に入口２側に連通し流体が流れる部屋１１が設けられるとともに部屋１１と出口３側に連通する通路１２が設けられている。また、本体１に設けた部屋１１内には、通路１２の部屋１１側開口１２ａを開閉する弁機構２０が設けられている。
詳しくは、本体１は、内部に弁室４ａが形成されるとともに開口５ｂを有した中空状の弁箱４と、弁箱４の開口５ｂを閉塞するための蓋体５と、弁箱４の弁室４ａに挿入され部屋１１及び通路１２を形成する中子部材１０とからなる。 1 and 6 show a trap device. The trap device comprises a body 1 having a fluid inlet 2 and an outlet 3. The main body 1 is provided with a chamber 11 through which fluid flows to the inlet 2 side and a passage 12 that communicates with the chamber 11 and the outlet 3 side. A valve mechanism 20 that opens and closes the room 11 side opening 12 a of the passage 12 is provided in the room 11 provided in the main body 1.
Specifically, the main body 1 includes a hollow valve box 4 having a valve chamber 4a formed therein and an opening 5b, a lid 5 for closing the opening 5b of the valve box 4, and a valve box 4 The core member 10 is inserted into the valve chamber 4a and forms a chamber 11 and a passage 12.

弁箱４の入口２及び出口３には、ボルト及びナットを介して他の管体へ接続するためのフランジ６が形成されている。蓋体５は、弁箱４の開口５ｂ端縁に係合するとともに図示しないボルト等により弁箱４に着脱可能に結合される。中子部材１０は、底壁１４ａ及び側壁１４ｂを有したカップ状の中子本体１４と、側壁１４ｂにより形成された開口端縁に係合する中子蓋体１３とを備えてなる。中子本体１４には、底壁１４ａ側の側壁１４ｂに入口２と部屋１１とを連通する連通路１５が形成されている。また、中子本体１４の底壁１４ａ内面には、通路１２の部屋１１側開口１２ａが形成されている。通路１２の部屋１１側開口１２ａには、入口２の開口１２ａ端縁を構成し後述の弁機構２０の弁部材２１が当接するブッシュ１６が設けられている。通路１２は、底壁１４ｂの内部を通って中子本体１４の外面に形成された出口３側開口１２ｂに連通している。中子蓋体１３は、その外面に突設された軸部１７を介して蓋体５に取り付けられている。軸部１７は、蓋体５を貫通し、ピン１７ａにより抜け止めがなされる。図中、符号１７ｂは、軸部１７をシールするパッキンである。 A flange 6 is formed at the inlet 2 and the outlet 3 of the valve box 4 to be connected to other pipes via bolts and nuts. The lid 5 engages with the edge of the opening 5b of the valve box 4 and is detachably coupled to the valve box 4 by a bolt or the like (not shown). The core member 10 includes a cup-shaped core body 14 having a bottom wall 14a and a side wall 14b, and a core lid body 13 that engages with an opening edge formed by the side wall 14b. In the core body 14, a communication path 15 that connects the inlet 2 and the room 11 is formed on the side wall 14 b on the bottom wall 14 a side. In addition, a chamber 11 side opening 12 a of the passage 12 is formed on the inner surface of the bottom wall 14 a of the core body 14. A bush 16 that constitutes the edge of the opening 12a of the inlet 2 and contacts a valve member 21 of a valve mechanism 20 described later is provided in the opening 12a on the room 11 side of the passage 12. The passage 12 communicates with the outlet 3 side opening 12b formed on the outer surface of the core body 14 through the inside of the bottom wall 14b. The core lid body 13 is attached to the lid body 5 via a shaft portion 17 protruding from the outer surface thereof. The shaft portion 17 penetrates the lid body 5 and is prevented from being detached by a pin 17a. In the figure, reference numeral 17 b is a packing for sealing the shaft portion 17.

図２乃至図５にも示すように、弁機構２０は、通路１２の開口１２ａ端縁に当接可能に形成され当接時に通路１２を閉塞する弁部材２１と、一端が本体１の内壁に支持され他端に弁部材２１が設けられるとともに所定温度よりも高いと他端側に伸長し所定温度よりも低いと一端側に収縮する伸縮部材２２とを備えて構成されている。
弁部材２１は、部屋１１側開口１２ａの径よりも径の大きい球体で構成されている。
伸縮部材２２は、内部にアルコール等の液体が封入されたベローズで構成され、その一端が本体１に対して固定されている。このベローズは、金属製のベローズ本体３０と、一端側に設けられ雄ネジ３３が突設された金属製の一端側金具３１と、他端側の金属製の他端側金具３２とを備えてなる。ベローズ本体３０と一端側金具３１及びベローズ本体３０と他端側金具３２は、ＴＩＧ溶接により接合されている。更に、一端側金具３１の雄ネジ３３の軸には、ベローズ本体３０の内部に連通するとともにベローズ本体３０内に液体を封入して真空引きするための孔３４が穿設されている。この孔３４は、液体の封入及び真空引き後に金属で閉塞される。 As shown in FIGS. 2 to 5, the valve mechanism 20 includes a valve member 21 that is formed so as to be able to contact the edge of the opening 12 a of the passage 12 and closes the passage 12 when contacted, and one end of the valve mechanism 20 on the inner wall of the main body 1. A valve member 21 is supported and provided at the other end, and is provided with an expansion / contraction member 22 that expands to the other end side when the temperature is higher than a predetermined temperature and contracts to the one end side when the temperature is lower than the predetermined temperature.
The valve member 21 is composed of a sphere having a diameter larger than the diameter of the room 11 side opening 12a.
The elastic member 22 is configured by a bellows in which a liquid such as alcohol is enclosed, and one end thereof is fixed to the main body 1. The bellows includes a metal bellows body 30, a metal one end fitting 31 provided on one end side and projecting a male screw 33, and a metal other end fitting 32 on the other end side. Become. The bellows main body 30 and the one end side metal fitting 31 and the bellows main body 30 and the other end side metal fitting 32 are joined by TIG welding. Further, the shaft of the male screw 33 of the one end side metal 31 is provided with a hole 34 that communicates with the inside of the bellows main body 30 and evacuates the liquid by filling the bellows main body 30. The hole 34 is closed with metal after the liquid is filled and evacuated.

また、一端側金具３１には、ベローズ本体３０の内側に突出するスプリングピン３６を挿入するための穴３５が凹設されている。この穴３５は、孔３４と同軸に設けられている。穴３５に挿入されたスプリングピン３６は、先端が他端側金具３２に当接することにより伸縮部材２２の収縮限界を設定している。また、伸縮部材２２の本体１に対する固定は、本体１の内壁である中子蓋体１３の内側に雌ネジ７を設け、一端側金具３１の雄ネジ３３をこの雌ネジ７に螺着して行なわれる。 Further, a hole 35 for inserting a spring pin 36 protruding inside the bellows main body 30 is recessed in the one end side metal fitting 31. The hole 35 is provided coaxially with the hole 34. The spring pin 36 inserted into the hole 35 sets the shrinkage limit of the expansion / contraction member 22 by contacting the other end side metal fitting 32 with the tip end. In addition, the expansion member 22 is fixed to the main body 1 by providing a female screw 7 inside the core lid 13 which is the inner wall of the main body 1 and screwing the male screw 33 of the one end side metal fitting 31 to the female screw 7. Done.

また、本トラップ装置は、弁部材２１を伸縮部材２２の伸縮方向と直交する平面に沿って伸縮部材２２に移動可能に支持する支持機構４０と、弁部材２１の移動範囲を規制する規制機構５０とを備えている。
支持機構４０は、伸縮部材２２の他端側に形成され伸縮部材２２の伸縮方向に直交するスライド面４４を有したベース４１と、弁部材２１に設けられベース４１のスライド面４４に対して移動可能なスライダ４２と、ベース４１に対してスライダ４２をスライド可能に保持する保持部４７とを備えてなる。 In addition, the trap device includes a support mechanism 40 that supports the valve member 21 movably on the expansion / contraction member 22 along a plane orthogonal to the expansion / contraction direction of the expansion / contraction member 22, and a restriction mechanism 50 that restricts the movement range of the valve member 21. And.
The support mechanism 40 is formed on the other end side of the expansion / contraction member 22 and has a base 41 having a slide surface 44 orthogonal to the expansion / contraction direction of the expansion / contraction member 22, and moves relative to the slide surface 44 of the base 41 provided on the valve member 21. And a holding portion 47 for holding the slider 42 slidably with respect to the base 41.

ベース４１は、ステンレス等の金属により円盤状に形成されている。実施の形態においては、ベース４１は、伸縮部材２２の他端側金具３２で構成されている。また、スライダ４２は、ステンレス等の金属で形成され、弁部材２１の外周に突出するフランジ４３を備えた構成としている。実施の形態においては、フランジ４３がスライド面４４に対してスライド移動するとともに、弁部材２１の開口１２ａ端縁当接時には、ベース部材４１のスライド面４４から押圧されて、弁部材２１を開口１２ａ端縁に押し付ける。
また、スライダ４２は、弁部材２１を保持する保持孔４５と、保持孔４５を囲繞するように突設される筒体４６が突設されている。この保持孔４５は、底部がロート状に形成されている。そして、弁部材２１の保持は、保持孔４５に入れられた弁部材２１を筒体４６の開放口端縁部をかしめることにより行なわれる。 The base 41 is formed in a disk shape from a metal such as stainless steel. In the embodiment, the base 41 is constituted by the other end side metal fitting 32 of the elastic member 22. The slider 42 is formed of a metal such as stainless steel and has a flange 43 that protrudes from the outer periphery of the valve member 21. In the embodiment, the flange 43 slides with respect to the slide surface 44, and at the time of contact of the edge of the opening 12a of the valve member 21, it is pressed from the slide surface 44 of the base member 41 to open the valve member 21 to the opening 12a. Press against the edge.
The slider 42 is provided with a holding hole 45 that holds the valve member 21 and a cylindrical body 46 that protrudes so as to surround the holding hole 45. The holding hole 45 has a bottom formed in a funnel shape. The valve member 21 is held by caulking the valve member 21 placed in the holding hole 45 at the opening edge of the cylindrical body 46.

保持部４７は、スライダ４２を囲繞するようにベース４１に突設された筒状体４８と、筒状体４８の内周に設けた溝４８ａに嵌入されスライダ４２のフランジ４３を押さえるＣリング４９とを備えて構成されている。
Ｃリング４９は、その外周の径が、筒状体４８の内径よりも大きく、Ｃリング４９の両端の近接時に筒状体４８の内径よりも径が小さくなる。また、Ｃリング４９の両端には、円形の孔４９ａが形成されておりラジオペンチ等で両端を近接できるようになっている。
この保持部４７でスライダを保持するには、筒状体４８にスライダ４２を挿入し、溝４８ａにＣリングを挿入する。これにより、保持部４７は、簡単な構造でスライダ４２をスライド可能に保持できる。また、Ｃリング４９の両端を近接すれば溝４８ａに嵌入したあとも取り外すこともでき、万が一弁部材２１やスライダ４２が破損した場合において、弁部材２１の交換を容易に行なうことができる。 The holding portion 47 includes a cylindrical body 48 projecting from the base 41 so as to surround the slider 42, and a C ring 49 that is fitted into a groove 48 a provided on the inner periphery of the cylindrical body 48 and presses the flange 43 of the slider 42. And is configured.
The outer diameter of the C ring 49 is larger than the inner diameter of the cylindrical body 48, and the diameter is smaller than the inner diameter of the cylindrical body 48 when both ends of the C ring 49 are close to each other. In addition, circular holes 49a are formed at both ends of the C-ring 49 so that both ends can be brought close to each other with radio pliers or the like.
In order to hold the slider by the holding portion 47, the slider 42 is inserted into the cylindrical body 48, and the C-ring is inserted into the groove 48a. Thereby, the holding | maintenance part 47 can hold | maintain the slider 42 with a simple structure so that a slide is possible. Further, if both ends of the C-ring 49 are close to each other, the C-ring 49 can be removed even after being fitted into the groove 48a. If the valve member 21 or the slider 42 is damaged, the valve member 21 can be easily replaced.

また、規制機構５０は、スライダ４２に突設される凸部５１と、ベース４１に凹設され凸部５１が遊挿される凹部５２とを備え、弁部材２１の移動範囲を凸部５１と凹部５２とのクリアランスｔの範囲に設定している。凹部５２は、その底部がロート状に形成されている。 The regulating mechanism 50 includes a convex portion 51 protruding from the slider 42 and a concave portion 52 that is concavely formed in the base 41 and into which the convex portion 51 is loosely inserted. 52 is set within the range of clearance t. The bottom of the recess 52 is formed in a funnel shape.

従って、このトラップ装置を用いるときは、例えば、ボイラに備えられた蒸気管に予め本トラップ装置の入口２側を接続しておく。
そして、ボイラが作動すると、トラップ装置の入口２から蒸気管側の蒸気及び水等の流体が流入してくる。この流体が低温であり、部屋１１内が所定温度よりも低くなった場合には、図１及び図３（ｂ）に示すように、伸縮部材２２が収縮して弁部材２１が通路１２の開口１２ａ端縁から離れ、入口２に接続された蒸気管の流体が部屋１１，通路１２を通って出口３から排出されていく。
次に、部屋１１内が高温の蒸気等で満たされて、流体の温度が所定温度より高くなった場合には、図３（ａ）及び図６に示すように、伸縮部材２２が伸長して弁部材２１が通路１２の開口１２ａ端縁に当接し、通路１２を閉にする。これにより、蒸気管内に溜まった水を外部に排出でき、また、蒸気管内が高温の蒸気で満たされている場合には、排出を停止できるようになり、ボイラを効率よく作動させることができる。 Therefore, when this trap device is used, for example, the inlet 2 side of the trap device is connected in advance to a steam pipe provided in the boiler.
When the boiler is activated, fluid such as steam and water on the steam pipe side flows from the inlet 2 of the trap device. When the fluid is at a low temperature and the inside of the chamber 11 becomes lower than a predetermined temperature, the expansion member 22 contracts and the valve member 21 opens the passage 12 as shown in FIGS. 1 and 3B. The fluid in the vapor pipe that is separated from the edge of 12a and connected to the inlet 2 is discharged from the outlet 3 through the chamber 11 and the passage 12.
Next, when the chamber 11 is filled with high-temperature steam or the like and the temperature of the fluid becomes higher than a predetermined temperature, the elastic member 22 is extended as shown in FIGS. The valve member 21 contacts the edge of the opening 12a of the passage 12 and closes the passage 12. As a result, water accumulated in the steam pipe can be discharged to the outside, and when the steam pipe is filled with high-temperature steam, the discharge can be stopped and the boiler can be operated efficiently.

また、伸縮部材２２が伸長する際に、伸縮部材２２がベローズで構成されていることから、伸縮部材２２の伸長方向のばらつきが生じ、弁機構２０の弁部材２１と通路１２の開口の軸ずれが生じることがある。
この場合、弁部材２１が支持機構４０により伸縮部材２２の伸縮方向と直交する平面に沿って伸縮部材２２に移動可能に支持されるので、軸ずれした状態で弁部材２１が通路１２の開口１２ａ端縁に当接しても、スライダ４２がベース４１に対してスライド移動することにより、弁部材２１の軸と通路１２の開口の軸とが合う方向に弁部材２１が移動し、開口端縁の全周に弁部材２１が当接して通路１２が閉塞される。これにより、軸ずれが生じても、クリアランスｔの範囲で弁部材２１が移動し、この軸ずれを吸収するので、弁部材２１で通路１２を確実に閉塞することができる。
また、伸縮部材２２の一端の雄ネジ３３を雌ネジ７に螺着して本体１に対して固定するとともに、支持機構４０を設けてこの支持機構４０で弁部材２１を移動可能にしたので、弁機構２０の支持強度が確保され、しかも、弁部材２１の軸と通路１２の部屋１１側開口１２ａの軸との軸ずれに対応できる。即ち、伸縮部材２２の本体２１に対する支持部分（雄ネジ３３）に負荷がかかりにくくなり、弁機構２０の支持部分（雄ネジ３３）を破損しにくくすることができる。 Further, when the expansion / contraction member 22 extends, the expansion / contraction member 22 is formed of a bellows, and therefore, the expansion direction of the expansion / contraction member 22 varies, and the axial displacement between the valve member 21 of the valve mechanism 20 and the opening of the passage 12 occurs. May occur.
In this case, the valve member 21 is supported by the support mechanism 40 so as to be movable along the plane orthogonal to the expansion / contraction direction of the expansion / contraction member 22, so that the valve member 21 is open on the passage 12 in the state of being off-axis. Even if it contacts the edge, the slider 42 slides relative to the base 41, so that the valve member 21 moves in a direction in which the axis of the valve member 21 and the axis of the opening of the passage 12 are aligned. The valve member 21 comes into contact with the entire circumference and the passage 12 is closed. Thereby, even if an axial deviation occurs, the valve member 21 moves within the range of the clearance t and absorbs this axial deviation, so that the passage 12 can be reliably closed by the valve member 21.
In addition, the male screw 33 at one end of the telescopic member 22 is screwed to the female screw 7 and fixed to the main body 1, and the support mechanism 40 is provided so that the valve member 21 can be moved by the support mechanism 40. Support strength of the valve mechanism 20 is ensured, and furthermore, it is possible to cope with an axial deviation between the axis of the valve member 21 and the axis of the chamber 11 side opening 12a of the passage 12. That is, it becomes difficult to apply a load to the support portion (male screw 33) of the expansion / contraction member 22 with respect to the main body 21, and the support portion (male screw 33) of the valve mechanism 20 can be hardly damaged.

また、この際、支持機構４０においては、スライダ４２はベース４１のスライド面４４に対して移動するので、弁部材２１を安定して移動させることができる。
更に、弁部材２１は、過度に移動しようとすると、凸部５１の外周が凹部５２の内周に当接してその移動が規制される。そのため、過度の弁部材２１の移動が防止される。また、規制機構５０においては、弁部材２１の移動範囲を、クリアランスｔの範囲に設定しているので、簡単な構造で、弁部材２１の移動の規制を確実に行なうことができる。 At this time, in the support mechanism 40, the slider 42 moves relative to the slide surface 44 of the base 41, so that the valve member 21 can be moved stably.
Furthermore, when the valve member 21 tries to move excessively, the outer periphery of the convex portion 51 comes into contact with the inner periphery of the concave portion 52 and the movement thereof is restricted. Therefore, excessive movement of the valve member 21 is prevented. Further, in the restriction mechanism 50, the movement range of the valve member 21 is set to the clearance t range, so that the movement of the valve member 21 can be reliably restricted with a simple structure.

尚、本発明のトラップ装置においては、規制機構５０を、凸部５１及び凹部５２で構成したがこれに限定されるものでなく、フランジ４３と筒状体４８であってもよい。この場合には、弁部材２１の移動範囲は、フランジ４３と筒状体４８とのクリアランスの範囲に設定される。
尚また、弁部材２１を球体に形成したがこれに限定されるものでなく、例えば、伸縮部材２２の伸縮方向伸長側に向けて径が小さくなる円錐形状であってもよく、適宜設計変更して差支えない。 In the trap device of the present invention, the restricting mechanism 50 is composed of the convex portion 51 and the concave portion 52, but is not limited thereto, and may be the flange 43 and the cylindrical body 48. In this case, the movement range of the valve member 21 is set to a clearance range between the flange 43 and the cylindrical body 48.
In addition, the valve member 21 is formed in a spherical shape, but the present invention is not limited to this. For example, the valve member 21 may have a conical shape whose diameter decreases toward the extension side in the extension / contraction direction of the extension / contraction member 22, and the design may be changed as appropriate. There is no problem.

本発明の実施の形態に係るトラップ装置を示す断面図である。It is sectional drawing which shows the trap apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るトラップ装置の弁機構を示す斜視図である。It is a perspective view which shows the valve mechanism of the trap apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るトラップ装置の弁機構を示し、（ａ）伸縮部材の伸長時の断面，（ｂ）伸縮部材の収縮時の断面をそれぞれ示す図である。It is a figure which shows the valve mechanism of the trap apparatus which concerns on embodiment of this invention, (a) The cross section at the time of expansion | extension of an expansion-contraction member, (b) The cross section at the time of contraction of an expansion-contraction member, respectively. 本発明の実施の形態に係るトラップ装置の弁機構を示す断面図である。It is sectional drawing which shows the valve mechanism of the trap apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るトラップ装置の弁機構を示す分解斜視図である。It is a disassembled perspective view which shows the valve mechanism of the trap apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るトラップ装置を、伸縮部材の伸長状態で示す断面図である。It is sectional drawing which shows the trap apparatus which concerns on embodiment of this invention in the expansion | extension state of an expansion-contraction member. 従来のトラップ装置の一例を示す図である。It is a figure which shows an example of the conventional trap apparatus. 従来のトラップ装置の弁機構を示す図である。It is a figure which shows the valve mechanism of the conventional trap apparatus.

符号の説明Explanation of symbols

１本体
２入口
３出口
４弁箱
５蓋体
６フランジ
７雌ネジ
１０中子部材
１１部屋
１２通路
１２ａ部屋側開口
１２ｂ出口側開口
１３中子蓋体
１４中子本体
１４ａ底壁
１４ｂ側壁
１５連通路
１６ブッシュ
１７軸部
１７ａピン
１７ｂパッキン
２０弁機構
２１弁部材
２２伸縮部材
３０ベローズ本体
３１一端側金具
３２他端側金具
３３雄ネジ
３４孔
３５穴
３６スプリングピン
４０支持機構
４１ベース
４２スライダ
４３フランジ
４４スライド面
４５保持孔
４６筒体
４７保持部
４８筒状体
４８ａ溝
４９Ｃリング
４９ａＣリングの両端の孔
５０規制機構
５１凸部
５２凹部
ｔクリアランス DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Outlet 4 Valve box 5 Cover body 6 Flange 7 Female screw 10 Core member 11 Room 12 Passage 12a Room side opening 12b Outlet side opening 13 Core lid body 14 Core main body 14a Bottom wall 14b Side wall 15 Communication path 16 Bush 17 Shaft 17 a Pin 17 b Packing 20 Valve mechanism 21 Valve member 22 Expandable member 30 Bellows main body 31 One end side metal fitting 32 Other end side metal fitting 33 Male screw 34 Hole 35 Hole 36 Spring pin 40 Support mechanism 41 Base 42 Slider 43 Flange 44 Slide surface 45 Holding hole 46 Cylindrical body 47 Holding part 48 Cylindrical body 48a Groove 49 C ring 49a Hole 50 at both ends of C ring Restricting mechanism 51 Convex part 52 Concave part t Clearance

Claims

流体の入口及び出口を有した本体を備え、該本体内に入口側に連通し流体が流れる部屋を設けるとともに該部屋と出口側に連通する通路を設け、上記部屋内に上記通路の該部屋側開口を開閉する弁機構を設け、該弁機構を、上記通路の開口端縁に当接可能に形成され当接時に該通路を閉塞する弁部材と、一端が上記本体の内壁に支持され他端に上記弁部材が設けられるとともに所定温度よりも高いと他端側に伸長し所定温度よりも低いと一端側に収縮する伸縮部材とを備えて構成してなるトラップ装置において、
上記伸縮部材の一端を上記本体に対して固定し、
上記弁部材を上記伸縮部材の伸縮方向と直交する平面に沿って該伸縮部材に移動可能に支持する支持機構と、上記弁部材の移動範囲を規制する規制機構とを備えたことを特徴とするトラップ装置。 A main body having an inlet and an outlet for fluid, a chamber in which fluid flows in the main body and in which fluid flows, and a passage in communication with the chamber and the outlet side are provided, and the room side of the passage is in the room A valve mechanism for opening and closing the opening is provided, and the valve mechanism is formed so as to be able to contact the opening edge of the passage and closes the passage at the time of contact, and one end is supported by the inner wall of the main body and the other end. In the trap device comprising the above-mentioned valve member and an expansion / contraction member that extends to the other end side when it is higher than a predetermined temperature and contracts to one end side when it is lower than the predetermined temperature,
Fixing one end of the elastic member to the main body;
A support mechanism that movably supports the valve member along a plane orthogonal to the expansion / contraction direction of the expansion / contraction member, and a restriction mechanism that restricts a movement range of the valve member. Trap device.

上記支持機構を、上記伸縮部材の他端側に形成され該伸縮部材の伸縮方向に直交するスライド面を有したベースと、上記弁部材に設けられ上記ベースのスライド面に対して移動可能なスライダと、上記ベースに対して上記スライダをスライド可能に保持する保持部とを備えて構成したことを特徴とする請求項１記載のトラップ装置。 A base having a slide surface formed on the other end side of the telescopic member and having a slide surface perpendicular to the telescopic direction of the telescopic member, and a slider provided on the valve member and movable relative to the slide surface of the base The trap apparatus according to claim 1, further comprising a holding portion that slidably holds the slider with respect to the base.

上記スライダを上記弁体の外周に突出するフランジを備えた構成とし、
上記保持部を上記スライダを囲繞するように上記ベースに突設された筒状体と、上記筒状体の内周に設けた溝に嵌入され上記スライダのフランジを押さえるＣリングとを備えて構成したことを特徴とする請求項２記載のトラップ装置。 The slider is configured to have a flange projecting on the outer periphery of the valve body,
The holding portion includes a cylindrical body projecting from the base so as to surround the slider, and a C-ring that is fitted in a groove provided on the inner periphery of the cylindrical body and presses the flange of the slider. The trap device according to claim 2, wherein

上記規制機構を、上記ベースまたは上記スライダのいずれか一方に突設される凸部と、上記ベースまたは上記スライダのいずれか他方に凹設され上記凸部が遊挿される凹部とを備え、上記弁部材の移動範囲を上記凸部と凹部とのクリアランスの範囲に設定したことを特徴とする請求項２，３または４記載のトラップ装置。 The regulating mechanism includes a convex portion protruding from one of the base and the slider, and a concave portion recessed from either the base or the slider and into which the convex portion is loosely inserted. 5. The trap device according to claim 2, wherein the movement range of the member is set within a clearance range between the convex portion and the concave portion.

上記伸縮部材の一端に雄ネジを設け、上記本体の内壁に雌ネジを設け、該雌ネジに上記雄ネジを螺着して上記伸縮部材を上記本体に固定したことを特徴とする請求項１，２，３または４記載のトラップ装置。 2. The expansion / contraction member is provided with a male screw at one end thereof, a female screw is provided on an inner wall of the main body, and the male screw is screwed onto the female screw to fix the expansion / contraction member to the main body. , 2, 3 or 4.