JPH08278000A - Steam trap device - Google Patents
Steam trap deviceInfo
- Publication number
- JPH08278000A JPH08278000A JP10461395A JP10461395A JPH08278000A JP H08278000 A JPH08278000 A JP H08278000A JP 10461395 A JP10461395 A JP 10461395A JP 10461395 A JP10461395 A JP 10461395A JP H08278000 A JPH08278000 A JP H08278000A
- Authority
- JP
- Japan
- Prior art keywords
- drain
- orifice
- outlet
- inlet
- foreign matter
- 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.)
- Pending
Links
Landscapes
- Details Of Valves (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、蒸気使用装置や、蒸
気の配管系に接続し、発生するドレンを排出するオリフ
ィス型スチームトラップ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam using device and an orifice type steam trap device which is connected to a steam piping system to discharge generated drain.
【0002】[0002]
【従来の技術】ドレンの流入口と、ドレンの流出口と、
分岐口と、上記流入口と分岐口に各端部を接続した筒形
フィルタとを有するY形ストレーナの前記流出口にオリ
フィストラップを接続したスチームトラップ装置は特開
平4−95694号公報により公知である。このスチー
ムトラップ装置は流入口から流入したドレンを筒形フィ
ルタで濾過することによりオリフィストラップ中のオリ
フィスを詰まらせる鉄粉、錆等の異物をフィルタで捕捉
し、ドレンだけを流出口を経てオリフィストラップに供
給し、排出するのである。しかしながら、それでも筒形
フィルタを貫通する異物があり、その異物によってオリ
フィストラップのオリフィスが閉塞することがあるた
め、分岐口にエゼクタ、その下流に開閉弁を接続し、エ
ゼクタの吸込室と、オリフィストラップのオリフィスの
手前の入口側を連通管で接続し、オリフィスが異物で閉
塞すると開閉弁を開き、流入口からY形ストレーナに流
入するドレンの全量を筒形フィルタの内部、分岐口を経
てエゼクタに流し、エゼクタの吸込室に発生する負圧で
オリフィスに詰った異物を吸引して除去するようになっ
ている。2. Description of the Related Art A drain inlet and a drain outlet
A steam trap device in which an orifice trap is connected to the outflow port of a Y-shaped strainer having a bifurcation port and a cylindrical filter having the inflow port and each end connected to the bifurcation port is known from Japanese Patent Laid-Open No. 4-95694. is there. This steam trap device filters foreign matter such as iron powder and rust that clogs the orifice in the orifice trap by filtering the drain flowing from the inlet with a filter, and only the drain passes through the outlet and the orifice trap Supply and discharge. However, there is still foreign matter that penetrates the cylindrical filter, and the foreign matter may block the orifice of the orifice trap.Therefore, connect the ejector to the branch port and the opening / closing valve downstream of it, and connect the ejector suction chamber to the orifice trap. The inlet side before the orifice is connected with a communication pipe, and when the orifice is blocked by foreign matter, the on-off valve is opened, and the entire amount of drain flowing from the inlet into the Y-shaped strainer is passed through the inside of the cylindrical filter and the branch to the ejector. The foreign matter blocked in the orifice is sucked and removed by the negative pressure generated in the suction chamber of the ejector.
【0003】[0003]
【発明が解決しようとする課題】上記従来装置ではオリ
フィストラップのオリフィスが異物で閉塞したのか、し
ないのかを判別できないのでドレンが排出されずに滞溜
して蒸気配管系でウォーターハンマ現象が発生したり、
蒸気使用装置では熱伝達率が低下したときにはじめてオ
リフィスが異物で閉塞したことに気付き、開閉弁を開い
て異物を吸引、除去するのであり、対症療法的に機能さ
せることしかできない。In the above conventional apparatus, it is impossible to determine whether the orifice of the orifice trap is blocked by foreign matter or not. Therefore, the drain is not discharged and stays in the steam trap and a water hammer phenomenon occurs in the steam piping system. Or
In the steam using device, when the heat transfer coefficient is lowered, the orifice is blocked by the foreign matter and the foreign matter is sucked and removed by opening the on-off valve, so that it can only be used as a symptomatic treatment.
【0004】[0004]
【課題を解決するための手段】この発明は、異物がY形
ストレーナの筒形フィルタで捕捉されずにフィルタを通
過するのは圧力が高いためであることに着目し、Y形ス
トレーナの内部を低圧に保ち、異物が筒形フィルタを通
過するのを確実に防止し、従来装置の問題点を解消した
のであって、ドレンの流入口と、ドレンの流出口と、分
岐口と、上記流入口と分岐口に各端部を接続した筒形フ
ィルタとを有するY形ストレーナの前記流入口と流出口
の内部に小径孔からなるオリフィスを設けたことを特徴
とする。そして、Y形ストレーナのドレンの流出口にオ
リフィストラップを接続すると、より効果的である。SUMMARY OF THE INVENTION The present invention focuses on the fact that a high pressure causes foreign matter to pass through the filter without being caught by the cylindrical filter of the Y strainer. Keeping the pressure low, foreign matter was reliably prevented from passing through the cylindrical filter, and the problems of the conventional device were solved.The drain inlet, the drain outlet, the branch outlet, and the inlet And a Y-shaped strainer having a cylindrical filter with each end connected to the branch port, an orifice having a small diameter hole is provided inside the inflow port and the outflow port. It is more effective to connect an orifice trap to the drain outlet of the Y-shaped strainer.
【0005】[0005]
【実施例】図1は本発明の請求項1の実施例、図2は本
発明の請求項2の実施例のいずれも断面図であり、図
中、10はドレンの流入口11と、ドレンの流出口12
と、分岐口13と、上記流入口11と分岐口13に各端
部を接続した筒形フィルタ14とを有するY形ストレー
ナを示す。筒形フィルタは周知のように円筒面にフィル
タが張られた多数の小孔を有する。分岐口13にはボー
ル弁などの開閉弁15を接続し、常時は閉鎖する。ドレ
ンは流入口11から筒形フィルタ14の内部に流れ込
み、円筒面にあるフィルタが張られた小孔からY形スト
レーナ内の中空部に出る際に含んでいる鉄粉、錆などの
異物をフィルタで捕捉される。こうして異物を除去され
たドレンはY形ストレーナの中空部から流出口13を経
て排出される。1 is a sectional view of an embodiment of claim 1 of the present invention, and FIG. 2 is a sectional view of an embodiment of claim 2 of the present invention, in which 10 is a drain inlet 11 and a drain. Outlet 12
2 shows a Y-shaped strainer having a branch port 13 and a tubular filter 14 having the ends thereof connected to the inflow port 11 and the branch port 13. As is well known, the cylindrical filter has a large number of small holes in which the filter is stretched on a cylindrical surface. An opening / closing valve 15 such as a ball valve is connected to the branch port 13 and is normally closed. The drain flows into the cylindrical filter 14 through the inflow port 11, and the foreign matter such as iron powder and rust contained when the drain exits the hollow portion of the Y-shaped strainer from the small hole formed in the cylindrical surface where the filter is stretched is filtered. Captured in. The drain from which the foreign matter has been removed in this way is discharged from the hollow portion of the Y-shaped strainer through the outflow port 13.
【0006】流入口11を経て筒形フィルタ14の内部
を流入するドレンの圧力が高いと、ドレンに含まれてい
る一部の異物は円筒面の小孔に張られたフィルタを突き
抜けてドレンと一緒にY形ストレーナの中空部に出、一
定量のドレンを連続的に排出するために流出口にオリフ
ィストラップを接続してある場合は、その異物がオリフ
ィストラップのオリフィスを閉塞するのである。When the pressure of the drain flowing into the inside of the cylindrical filter 14 through the inflow port 11 is high, some foreign matter contained in the drain penetrates through the filter formed in the small hole of the cylindrical surface and becomes drain. When the orifice trap is connected to the outlet for discharging a certain amount of drain continuously, the foreign matter blocks the orifice of the orifice trap.
【0007】従来のY形ストレーナの流入口はドレンの
上流配管を接続するための雌ネジ付きソケットを有し、
流入口はソケットの雌ネジとほゞ同じ直径で開口してい
る。又、流出口もドレンの下流配管や、オリフィストラ
ップを接続するための雌ネジ付きソケットを有し、流出
口はソケットの雌ネジとほゞ同じ直径で開口している。The inlet of the conventional Y strainer has a female threaded socket for connecting the upstream pipe of the drain,
The inlet is open with the same diameter as the female thread of the socket. Further, the outlet also has a downstream pipe of the drain and a socket with a female screw for connecting an orifice trap, and the outlet is opened with a diameter substantially the same as the female screw of the socket.
【0008】これに対し、本発明ではY形ストレーナの
流入口と流出口は夫々雌ネジ付きソケット16,17を
有するが、ソケットの奥には中心に小径孔21,22を
有するオリフィス23,24が設けてある。On the other hand, in the present invention, the inlet and the outlet of the Y-shaped strainer have sockets 16 and 17 with female threads, respectively, but orifices 23 and 24 having small diameter holes 21 and 22 at the center of the sockets are provided at the back of the sockets. Is provided.
【0009】流入口11内部のオリフィス23の小径孔
21の直径は異物が詰ることのない最小孔径、即ち2.
5〜3mm程度にすることが好ましい。又、流出口12
内のオリフィス24の小径孔22の直径は、流出口にオ
リフィストラップを接続しない場合は流入口の小径孔と
同じか、又はそれ以下の0.5〜3mm、オリフィスト
ラップを接続する場合は流入口の小径孔と同じ2.5〜
3mmにすることが好ましい。The diameter of the small-diameter hole 21 of the orifice 23 inside the inflow port 11 is the minimum diameter that prevents foreign matter from clogging, that is, 2.
It is preferably about 5 to 3 mm. Also, the outlet 12
The diameter of the small diameter hole 22 of the internal orifice 24 is the same as or smaller than the small diameter hole of the inlet when the orifice trap is not connected to the outlet, 0.5 to 3 mm, and the inlet when the orifice trap is connected. Same as the small diameter hole of 2.5 ~
It is preferably 3 mm.
【0010】このように、Y形ストレーナの流入口11
と、流出口12に小径孔21を有するオリフィス23
と、小径孔22を有するオリフィス24を設けると、流
入口11から小径孔21を通って筒形オリフィス内に流
入したドレンはY形ストレーナの内部の大きな空間で断
熱膨張して圧力が低下する。従って、筒形フィルタ14
の円筒面の小孔に張られたフィルタを通過するドレンの
圧力は低くなるので、ドレン中に含まれる異物はフィル
タに全部捕捉され、Y形ストレーナの中空部に出て流出
口に流れることはない。In this way, the inlet 11 of the Y-shaped strainer
And an orifice 23 having a small diameter hole 21 at the outlet 12.
When the orifice 24 having the small diameter hole 22 is provided, the drain flowing from the inflow port 11 through the small diameter hole 21 into the cylindrical orifice adiabatically expands in a large space inside the Y-shaped strainer, and the pressure drops. Therefore, the tubular filter 14
Since the pressure of the drain passing through the filter formed in the small hole on the cylindrical surface of the drain becomes low, all the foreign matter contained in the drain is trapped by the filter and does not flow out into the hollow portion of the Y-shaped strainer and flow to the outlet. Absent.
【0011】請求項2により小径孔22からなるオリフ
ィス24が設けられた流出口12にオリフィストラップ
18を接続すると、流出口の小径口と、オリフィストラ
ップのオリフィス19との間にもう1つの減圧室20が
形成される。従って、流入口11から小径孔21を通っ
て筒形オリフィス内に流入し、筒形オリフィスのフィル
タが張られた円筒面の小孔から出るドレンの圧力は更に
低下し、ドレン中に含まれた異物はより効果的にフィル
タに捕捉される。When the orifice trap 18 is connected to the outlet 12 provided with the orifice 24 composed of the small-diameter hole 22 according to the second aspect, another decompression chamber is provided between the small-diameter outlet and the orifice 19 of the orifice trap. 20 is formed. Therefore, the pressure of the drain flowing from the inflow port 11 through the small-diameter hole 21 into the cylindrical orifice and exiting from the small hole of the cylindrical surface on which the filter of the cylindrical orifice is stretched further decreases, and is contained in the drain. Foreign matter is more effectively captured by the filter.
【0012】そして、分岐口13に接続したボール弁1
5は定期的に開き、流入口から筒形フィルタを経て分岐
口に流れるドレンにより、筒形フィルタの円筒面の小孔
に張られたフィルタが捕捉した異物を除去し、排出す
る。The ball valve 1 connected to the branch port 13
Reference numeral 5 is opened periodically, and a drain flowing from the inflow port to the branch port through the tubular filter removes and discharges the foreign matter captured by the filter provided in the small hole on the cylindrical surface of the tubular filter.
【0013】Y形ストレーナの流入口11と、流出口1
2とに小径孔を有するオリフィスを設けるにはY型スト
レーナを鋳型で一体成型したのち穴をあけるか、Y型ス
トレーナにオリフィス板をねじ込めばよい。Inlet 11 and outlet 1 of the Y-shaped strainer
In order to provide an orifice having a small diameter hole with 2, a Y-shaped strainer may be integrally molded with a mold and then a hole may be formed, or an orifice plate may be screwed into the Y-shaped strainer.
【0014】[0014]
【発明の効果】以上で明らかなように、本発明のスチー
ムトラップ装置によれば、ドレン中に含まれている異物
をY形ストレーナの筒形フィルタで確実に捕捉し、その
流出口から排出することがない。従って、蒸気配管系で
のウォーターハンマ現象や、蒸気使用装置での熱伝達率
の低下の発生を確実に防止できる。As is apparent from the above, according to the steam trap device of the present invention, the foreign matter contained in the drain is reliably captured by the cylindrical filter of the Y-shaped strainer and discharged from the outlet. Never. Therefore, it is possible to reliably prevent a water hammer phenomenon in the steam piping system and a decrease in heat transfer coefficient in the steam using device.
【図1】本発明の請求項1の一実施例を示す断面図であ
る。FIG. 1 is a sectional view showing an embodiment of claim 1 of the present invention.
【図2】本発明の請求項2の一実施例を示す断面図であ
る。FIG. 2 is a sectional view showing an embodiment of claim 2 of the present invention.
10 Y形ストレーナ 11 ドレンの流入口 12 ドレンの流出口 13 分岐口 14 筒形フィルタ 18 オリフィストラップ 21 流入口の小径孔 22 流出口の小径孔 23 流入口のオリフィス 24 流出口のオリフィス 10 Y-type strainer 11 Drain inflow port 12 Drain outflow port 13 Branch port 14 Cylindrical filter 18 Orifice trap 21 Small inlet hole 22 Small outlet hole 23 Inlet orifice 24 Outlet orifice
Claims (2)
分岐口と、上記流入口と分岐口に各端部を接続した筒形
フィルタとを有するY形ストレーナの前記流入口と流出
口の内部に小径孔からなるオリフィスを設けたことを特
徴とするスチームトラップ装置。1. A drain inlet and a drain outlet,
A steam having a Y-shaped strainer having a branch port and a cylindrical filter having ends connected to the branch port and an orifice formed of a small diameter hole is provided inside the inflow port and the outflow port. Trap device.
において、ドレンの流出口にオリフィストラップを接続
したことを特徴とするスチームトラップ装置。2. The steam trap device according to claim 1, wherein an orifice trap is connected to the drain outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461395A JPH08278000A (en) | 1995-04-06 | 1995-04-06 | Steam trap device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461395A JPH08278000A (en) | 1995-04-06 | 1995-04-06 | Steam trap device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08278000A true JPH08278000A (en) | 1996-10-22 |
Family
ID=14385295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10461395A Pending JPH08278000A (en) | 1995-04-06 | 1995-04-06 | Steam trap device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08278000A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015016298A1 (en) * | 2013-08-02 | 2015-02-05 | 株式会社エコファースト | Nozzle-type steam trap |
JP5794653B1 (en) * | 2015-05-27 | 2015-10-14 | 命得 金城 | steam trap |
JP2016169860A (en) * | 2015-03-13 | 2016-09-23 | 株式会社ボイラエンジニアリング | Strainer cleaning device |
KR102543139B1 (en) * | 2022-09-20 | 2023-06-14 | (주) 엘엠씨 | High pressure steam trap with adjustable pressure to discharge condensate |
-
1995
- 1995-04-06 JP JP10461395A patent/JPH08278000A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015016298A1 (en) * | 2013-08-02 | 2015-02-05 | 株式会社エコファースト | Nozzle-type steam trap |
JP5694619B1 (en) * | 2013-08-02 | 2015-04-01 | 株式会社エコファースト | Nozzle type steam trap |
CN105518373A (en) * | 2013-08-02 | 2016-04-20 | 環保冠有限公司 | Nozzle-type steam trap |
US11480295B2 (en) | 2013-08-02 | 2022-10-25 | Eco First Co., Ltd. | Nozzle-type steam trap |
JP2016169860A (en) * | 2015-03-13 | 2016-09-23 | 株式会社ボイラエンジニアリング | Strainer cleaning device |
JP5794653B1 (en) * | 2015-05-27 | 2015-10-14 | 命得 金城 | steam trap |
KR102543139B1 (en) * | 2022-09-20 | 2023-06-14 | (주) 엘엠씨 | High pressure steam trap with adjustable pressure to discharge condensate |
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