JPS5929895A - Thermostatic steam trap - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 この発明はザーモスクチックスチームトラップに関し、
とくにその排水作動中にしばしば生じ勝ちな、スケール
の刺着による弁孔のつまりを有利に防止することについ
ての改良を提案するものである。[Detailed Description of the Invention] This invention relates to a thermostic steam trap,
In particular, an improvement is proposed to advantageously prevent clogging of the valve hole due to scale sticking, which often occurs during the drainage operation.

この種のスチームトラップは、排出復水温度の設定を適
切に行うことができるので、蒸気加熱医温輸送管路など
でその断熱被覆層中に迂曲埋設される加熱用蒸気ＫＪＴ
Ｉ管中からの生成復水の排除にとくに有効であるが、そ
の排水流路が一般に小径なので、スケール付着による弁
孔のつまりを生じ易いところに問題がある。This type of steam trap can appropriately set the discharge condensate temperature, so the heating steam KJT that is buried in a roundabout way in the heat insulating coating layer of steam heating medical temperature transport pipes, etc.
Although this method is particularly effective in removing generated condensate from the I pipe, there is a problem in that the drainage flow path is generally small in diameter, so that the valve hole is easily clogged due to scale adhesion.

そこでこの発す１１／Ｊ：かような問題罠ついての有効
な解決を図ることを目的とするものである。Therefore, the purpose of this publication, 11/J, is to provide effective solutions to such problems.

このＪ８　！Ｊｉの目的は、−ソー−モスクチツクスチ
ームトラップに関して、円錐座を挾んだ小径孔とこれに
対し比較的大径孔とからなる弁孔を有し、大径孔の内面
に関する複数の流通孔をそなえる弁座部材に、円錐座の
小径孔寄りに着座する円錐弁面と、小径孔中でゆるくの
びる突脚および流通孔の開口に面する円錐っけをもち大
径孔中にのびる胴とをそなえる弁子を組合わせ、弁座部
材の大径孔にはまり合い、弁子の胴をゆるく納めて円錐
つげと突合わさる１呆持孔を一端にあけたステムにバイ
メタルコラムを係止し、このステムの他端をゆるく納め
たねじ式調整筒の内端でバイメタルコラムを設定位置に
作詩することによって、弁子の突脚がその開閉作動の度
毎に弁座部材の小径孔中で修■のし、それにより付着ス
ケールの掃過脱落を刺戟させて有利に達成され得るので
あり、こ＼に弁子の突ｊν１ｊと円錐つばのうち少くと
も一方がらせん切かきを有するものとして、それに上る
復水流動の旋回流は上記突胛の移ＵｉｌＪによる作用の
助成に効果的な活用が図れる。This J8! The purpose of Ji is to have a valve hole consisting of a small diameter hole sandwiching a conical seat and a relatively large diameter hole with a conical seat in between, and a plurality of communication holes on the inner surface of the large diameter hole. a valve seat member having a conical seat, a conical valve surface seated near the small diameter hole of the conical seat, a body extending into the large diameter hole having a protruding leg extending loosely in the small diameter hole and a conical hook facing the opening of the flow hole; A bimetal column is fitted into a large diameter hole of a valve seat member, and a bimetal column is secured to a stem which has a retaining hole at one end that fits into a large diameter hole of a valve seat member, loosely houses the body of the valve body, and abuts against a conical boxwood. By positioning the bimetal column at the set position with the inner end of the screw-type adjustment tube in which the other end of the stem is loosely housed, the protruding legs of the valve are adjusted in the small diameter hole of the valve seat member each time the valve is opened and closed. (2) This can be advantageously achieved by stimulating the adhering scale to sweep and fall off, and this can be advantageously achieved by providing at least one of the protrusion jν1j and the conical flange of the valve with a spiral cut. The swirling flow of the ascending condensate flow can be effectively utilized to assist the action of the above-mentioned projectile transfer UilJ.

第１図にこの発（７）の実施例を、２次側に配置したバ
イメタルコラムの感温ｖノ作により排水制御する場合に
ついて示した。FIG. 1 shows an embodiment of this invention (7) in which drainage is controlled by temperature-sensitive V-operation of a bimetal column placed on the secondary side.

図中１は入口、２は出口、３け弁座部材、４は弁孔、５
は弁子、６はバイメタルコラム、７けステム、８はねじ
式、１．１節筒であり、９はそのロックコイルまた１０
はバイメタルコラムの止め輪である。In the figure, 1 is the inlet, 2 is the outlet, 3 valve seat members, 4 is the valve hole, 5
is a valve, 6 is a bimetal column, 7 is a stem, 8 is a screw type, 1.1 section tube, 9 is its lock coil or 10
is the retaining ring of the bimetal column.

この例で弁座部１，１３は、入口１をもつ１７ｔｉＪ部
材１１にねじ込み固定し、一方出口２をもつ端部材１２
に対してねじ式調節筒８を、調整位置可変に適合させ、
両端部月１１．１２間に胴筒１３をねじ止めしてその内
部空洞を、バイメタルコラムの作動室に利用している。In this example, the valve seat parts 1, 13 are screwed and fixed to the 17tiJ member 11 with the inlet 1, while the end member 12 has the outlet 2.
The screw type adjustment tube 8 is adapted to be variable in its adjustment position,
A barrel 13 is screwed between the ends 11 and 12, and its internal cavity is used as the working chamber of the bimetal column.

弁座部材３は、第２図に要部を示したように円錐座３ａ
を挾んだ小径孔３ｂとこれに対し比較的大径孔３ｃとか
らなる弁孔４を有し大径孔３Ｃの内面に開口する複数の
流通孔３ｄをそなえ、これに対し円錐座３ａの小径孔３
ｂ寄りに着座する円錐弁面５ａと、小径孔３ｂ内でゆる
くのびる突脚５ｂおよび流通孔３ｄの開口に面する円錐
つば５Ｃをもち大径孔３Ｃ中にのびる胴５ｄをもつｖＳ
３図（ａ）　（ｂ）のような弁子５を組合わせる。The valve seat member 3 has a conical seat 3a as shown in FIG.
It has a valve hole 4 consisting of a small diameter hole 3b sandwiching a small diameter hole 3b and a relatively large diameter hole 3c. Small diameter hole 3
vS has a conical valve surface 5a seated closer to b, a projecting leg 5b extending loosely within the small diameter hole 3b, a conical collar 5C facing the opening of the communication hole 3d, and a body 5d extending into the large diameter hole 3C.
3. Combine the valves 5 as shown in Figures (a) and (b).

弁子５はその突脚５ｂおよびまたは円錐つば５Ｃに、ら
せん切かき５ｅ、　５ｆを有することがよりのぞましい
。More preferably, the valve element 5 has spiral notches 5e and 5f on its protruding legs 5b and/or conical collar 5C.

弁座部材３の大径孔３ｃＫはこれに対しｊ摺動可能とし
てステム７の一端をはめ合わせ、この一端にステム７は
弁子５の胴５ｄをゆるく納めて円錐つば５ｃとその背面
へ突合わさる保持孔７ａをあけ、ステム７の他端のや＼
拡大頭部７ｂは、これをゆるく納めた盲孔８ａをあけた
ねじ式調節筒８に作持する。One end of the stem 7 is fitted into the large diameter hole 3cK of the valve seat member 3 so as to be able to slide against it, and the stem 7 loosely accommodates the body 5d of the valve element 5 and projects into the conical flange 5c and its back surface. Drill the matching holding hole 7a, and then open the other end of the stem 7.
The enlarged head 7b is held in a screw type adjustment tube 8 having a blind hole 8a in which it is loosely housed.

ステム７にはバイメタルコラム６を止め輪１０とねじ式
調節筒との間で係止し、バイメタルコラム６の熱１膨張
を、ねじ式Ｗ１■節筒８による反力支持のもとに止め輪
１０を介してステム７、ひいては弁子５の変位として伝
えるのである。A bimetal column 6 is fixed to the stem 7 between a retaining ring 10 and a screw type adjustment tube, and the thermal expansion of the bimetal column 6 is transferred to the retaining ring under reaction force support by the screw type W1■ joint tube 8. The displacement of the stem 7 and, ultimately, the valve element 5 is transmitted through the valve 10.

従って入口１に到来した復水の温度が低いとき、七の復
水は弁子５を排して弁孔４を通り抜け、端部材１２のス
パイダ開口１２ａから出口２を流過する。Therefore, when the temperature of the condensate that has arrived at the inlet 1 is low, the condensate leaves the valve 5, passes through the valve hole 4, and flows through the outlet 2 through the spider opening 12a of the end member 12.

こうして後続蒸気で押送される間に復水温度が漸増する
や、その温度に応じるバイメタルコラム６の膨張をもた
らし、すでにのべたようにして、遂に弁子５は弁孔４を
閉止するに至り、その閉弁温度は、ねじ式調節筒８の調
整位置で任意に設定され得るのは明らかであり、従って
この閉弁温度に達しない間にはこの例で復水の連続排出
が行われることとなる。As the temperature of the condensate gradually increases while being pushed away by the subsequent steam, the bimetallic column 6 expands in response to the temperature, and as already mentioned, the valve 5 finally closes the valve hole 4. It is clear that the valve closing temperature can be arbitrarily set by adjusting the adjustment position of the screw type adjusting cylinder 8, and therefore, in this example, continuous discharge of condensate is performed before this valve closing temperature is reached. Become.

このようにして復水中に含まれるかも知れない種々な挾
雑物は、入口側ストレーナ−１４を通り抜けて、弁孔周
縁にスケール付着をもたらすことがあり得るところ、上
記の弁子５の開閉弁の度の進え、これによってスケール
付着の防止に役立つ流勢の変ｆｆ１ＩＪをもたらす。こ
＼に突１即５ｂｔ−たけ円錐つば５Ｃに第３図（ｂ）に
示すようならせん切かき５ｅ、　５ｆを付したときには
、これらに沿って流れる復水流動が弁子５の回転ひいて
はこれに伴われる旋回流動が、上記スケール付着のさら
ｅに有効な防止を実現することができる。In this way, various impurities that may be contained in the condensate pass through the inlet side strainer 14 and cause scale deposits around the valve hole, but the on-off valve of the valve 5 is This results in a flow change ff1IJ that helps prevent scale build-up. When spiral notches 5e and 5f as shown in Fig. 3(b) are attached to the protrusion 1 and the conical collar 5C, the condensate flow flowing along these is caused by the rotation of the valve 5 and by this. The swirling flow accompanying this can further effectively prevent scale adhesion.

かくしてこの発明によれば、復水排出流動を、弁孔の小
径部において弁子に設けた突脚により駄弁の動作中に変
動させることで、弁孔に１１着し力ｉちなスクールの停
滞を押し流し掃過し、もって弁孔が小さい場合にもその
つまりを生じるうれいを有利に軽減できる。Thus, according to the present invention, by varying the condensate discharge flow during the operation of the valve by means of the protruding legs provided on the valve at the small diameter portion of the valve hole, it is possible to prevent the stagnation of the school that tends to reach the valve hole. By flushing and sweeping, it is possible to advantageously reduce the possibility of clogging of the valve hole even when the valve hole is small.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の実施例を示す断面図、第２図は弁部
材の要部断面図、第３図（ａ）　（ｂ）け弁子の端面図
と側面図である。 ３・・・・・・弁座部材　３ａ・・・・・ｌＬ：ｌ体圧
　３ｂ・・・小径孔　３Ｃ・・・・大径孔　３ｄ・・・
・・・・流通孔　４・・・・弁孔　５・・・・・弁子　
５ａ・・・・・円錐弁面　５ｂ　　・・突１１１１１　
５ｃ・・・・・・円錐つば　５ｄ・・・・・胴　５ｅ、
　５ｆ　　・・特許出願人の名称FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of a main part of a valve member, and FIGS. 3(a) and 3(b) are an end view and a side view of a valve element. 3...Valve seat member 3a...lL: l body pressure 3b...small diameter hole 3C...large diameter hole 3d...
...Flower hole 4...Valve hole 5...Valve
5a...Conical valve surface 5b...Protrusion 11111
5c... Conical brim 5d... Body 5e,
5f...Name of patent applicant

Claims (1)

【特許請求の範囲】 １、円錐座を挾んだ小径孔とこれに対し比較的大径孔と
からなる弁孔を有し、大径孔の内面に開口する複数の流
通孔をそなえる弁座部材に、円錐座の小径孔寄りに着座
する円錐弁面と、小径孔中でゆるくのびる突脚および流
通孔の開口に面する円錐つげをもち大径孔中にのびる／
Ｉｎとをそなえる弁子を組合わせ、弁座部材の大ｍｌ孔
にけ１り合い、弁子の胴をゆるく納めて円錐つげと突合
わさる保持孔を一端にあけたステムにバイメタルコラム
係止し、このステムの他端をゆるく納めたねじ式調整筒
の内ｆ’ｉｆＪでバイメタルコラムを、設定位置に保４
寺してなる、サーモスタチックスヂームトラッブ。 ２、弁子が、突脚と円錐っばのうち少くとも一方に、ら
せん９ノかきを有するものである特許請求の範囲第１項
記載のトラップ。[Scope of Claims] 1. A valve seat having a valve hole consisting of a small diameter hole sandwiching a conical seat and a relatively large diameter hole, and a plurality of communication holes opening on the inner surface of the large diameter hole. The member has a conical valve surface that is seated near the small diameter hole of the conical seat, a projecting leg that extends loosely in the small diameter hole, and a conical boxwood facing the opening of the flow hole that extends into the large diameter hole.
Combine the valve with In and fit into the large ml hole of the valve seat member, loosely store the body of the valve, and lock the bimetal column to the stem with a holding hole at one end that abuts against the conical boxwood. , hold the bimetal column at the set position with f'ifJ inside the screw-type adjustment tube in which the other end of this stem is loosely housed.
Thermostatic Dim Truck. 2. The trap according to claim 1, wherein the valve has nine helical openings on at least one of the protruding legs and the conical flange.