JP5037380B2 - Pilot steam trap - Google Patents

Pilot steam trap Download PDF

Info

Publication number
JP5037380B2
JP5037380B2 JP2008034829A JP2008034829A JP5037380B2 JP 5037380 B2 JP5037380 B2 JP 5037380B2 JP 2008034829 A JP2008034829 A JP 2008034829A JP 2008034829 A JP2008034829 A JP 2008034829A JP 5037380 B2 JP5037380 B2 JP 5037380B2
Authority
JP
Japan
Prior art keywords
opens
valve
pressure chamber
metal diaphragm
hole
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.)
Expired - Fee Related
Application number
JP2008034829A
Other languages
Japanese (ja)
Other versions
JP2009192012A (en
Inventor
哲夫 浅田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tlv Co Ltd
Original Assignee
Tlv Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tlv Co Ltd filed Critical Tlv Co Ltd
Priority to JP2008034829A priority Critical patent/JP5037380B2/en
Publication of JP2009192012A publication Critical patent/JP2009192012A/en
Application granted granted Critical
Publication of JP5037380B2 publication Critical patent/JP5037380B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Temperature-Responsive Valves (AREA)

Description

本発明は蒸気配管系に発生する復水を排出するスチームトラップに関し、特に、入口通路側の温度を反転バイメタル弁で検出して圧力応動弁としての金属ダイヤフラムを駆動するパイロット式スチームトラップに関する。   The present invention relates to a steam trap that discharges condensate generated in a steam piping system, and more particularly to a pilot-type steam trap that drives a metal diaphragm as a pressure responsive valve by detecting the temperature on the inlet passage side with a reverse bimetal valve.

この種のパイロット式スチームトラップは、入口通路と出口通路および両通路を連通する弁口を形成するトラップ筐体、入口通路側から弁口に対向して配され圧力変動に応じて湾曲して弁口を開閉する金属ダイヤフラム、トラップ筐体壁に締結された内蓋と金属ダイヤフラムによって形成された圧力室、入口通路と圧力室とを連通する様に内蓋に貫通して設けられた導入孔、圧力室と出口通路とを連通する様に金属ダイヤフラムに貫通して設けられ導入孔よりも大径の導出孔、導出孔を低温時に開口し高温時に閉口する反転バイメタル弁から成るものである。 This type of pilot steam trap has a trap housing that forms an inlet passage, an outlet passage, and a valve port that communicates both passages, and is arranged to face the valve port from the inlet passage side and bends in response to pressure fluctuations. A metal diaphragm that opens and closes the mouth, an inner lid fastened to the trap housing wall and a pressure chamber formed by the metal diaphragm, an introduction hole provided through the inner lid so as to communicate the inlet passage and the pressure chamber, The pressure chamber and the outlet passage are provided through the metal diaphragm so as to communicate with each other. The lead-out hole has a larger diameter than the introduction hole, and the reversal bimetal valve opens at a low temperature and closes at a high temperature.

上記従来のパイロット式スチームトラップは、導入孔が常に開口したものであるので、低温時に反転バイメタル弁が導出孔を開口したときに、圧力室の圧力を低下させるのに時間が掛かり、金属ダイヤフラムによる弁口の開口に遅れが生じる問題点があった。
特公昭57−8355号公報
Since the conventional pilot type steam trap has the introduction hole always open, it takes time to lower the pressure in the pressure chamber when the reverse bimetal valve opens the lead-out hole at a low temperature, which is caused by the metal diaphragm. There was a problem that the valve opening was delayed.
Japanese Patent Publication No.57-8355

従って、本発明の技術的課題は、低温時に反転バイメタル弁が導出孔を開口したときに、圧力室の圧力を素早く低下させて、金属ダイヤフラムによる弁口の開口に遅れを生じることのないパイロット式スチームトラップを提供することである。   Therefore, the technical problem of the present invention is that the pilot type which does not cause a delay in the opening of the valve opening by the metal diaphragm by rapidly reducing the pressure in the pressure chamber when the reverse bimetal valve opens the outlet hole at low temperature. Is to provide a steam trap.

上記の技術的課題を解決するために講じた本発明の技術的手段は、入口通路と出口通路および両通路を連通する弁口を形成するトラップ筐体、入口通路側から弁口に対向して配され圧力変動に応じて湾曲して弁口を開閉する金属ダイヤフラム、トラップ筐体壁に締結された内蓋と金属ダイヤフラムによって形成された圧力室、入口通路と圧力室とを連通する様に内蓋に貫通して設けられた導入孔、圧力室と出口通路とを連通する様に金属ダイヤフラムに貫通して設けられた導出孔、導入孔を低温時に閉口し高温時に開口すると共に導出孔を低温時に開口し高温時に閉口する反転バイメタル弁から成ることを特徴とするものである。 The technical means of the present invention taken in order to solve the above technical problem is that an inlet passage, an outlet passage, and a trap housing forming a valve port communicating both passages, facing the valve port from the inlet passage side. provided that the metal diaphragm to open and close the valve port is curved in accordance with the pressure fluctuations, the pressure chamber formed by the lid and the metal diaphragm inner fastened to the trap housing wall, the inner and inlet passage and pressure chamber so as to communicate An introduction hole provided through the lid , a lead-out hole provided through the metal diaphragm so that the pressure chamber communicates with the outlet passage, the introduction hole is closed at a low temperature, opened at a high temperature, and the discharge hole is provided at a low temperature. It consists of a reversing bimetal valve that is sometimes opened and closed at high temperatures.

本発明は、反転バイメタル弁が導入孔を低温時に閉口し高温時に開口すると共に導出孔を低温時に開口し高温時に閉口するものであるので、低温時に反転バイメタル弁が導出孔を開口したときに、圧力室の圧力を素早く低下させることができ、金属ダイヤフラムによる弁口の開口に遅れを生じることがないという優れた効果を生じる。   Since the reverse bimetal valve closes the introduction hole at a low temperature and opens at a high temperature and opens the lead-out hole at a low temperature and closes at a high temperature, the reverse bimetal valve opens the lead-out hole at a low temperature. The pressure in the pressure chamber can be quickly reduced, and an excellent effect is obtained in that there is no delay in the opening of the valve port by the metal diaphragm.

本発明は、反転バイメタル弁が導入孔を低温時に閉口し高温時に開口すると共に導出孔を低温時に開口し高温時に閉口するものである。すなわち、低温時に反転バイメタル弁が導出孔を開口すると共に導入孔を閉口するものである。そのため、低温時に反転バイメタル弁が導出孔を開口したときに、圧力室の圧力を素早く低下させることができ、金属ダイヤフラムによる弁口の開口に遅れを生じることがない。   In the present invention, the reverse bimetal valve closes the introduction hole at a low temperature and opens at a high temperature, and opens the outlet hole at a low temperature and closes at a high temperature. That is, the reverse bimetal valve opens the outlet hole and closes the inlet hole at low temperatures. Therefore, when the reverse bimetal valve opens the outlet hole at low temperature, the pressure in the pressure chamber can be quickly reduced, and the opening of the valve port by the metal diaphragm is not delayed.

上記の技術的手段の具体例を示す実施例を説明する(図1参照)。本体1に蓋2を締結して内部に空室3を有するトラップ筐体を形成する。空室3には入口通路4と出口通路5が開口する。出口通路5の空室3側端に環状に突出する弁座6を形成し、弁座6により弁口7を形成する。空室3側より弁座6に対向して金属製ダイヤフラム8を配置する。金属製ダイヤフラム8には周辺部に上下2枚の環状引張り板9,10を溶接している。金属製ダイヤフラム8は弁座6と同心円上に突出して設けられた突部11上に載置し、突部11に締結する内蓋12との間に挟持する。金属製ダイヤフラム8により2分された空室3を連通する通孔13を突部11に形成する。   An embodiment showing a specific example of the above technical means will be described (see FIG. 1). A lid 2 is fastened to the main body 1 to form a trap housing having an empty chamber 3 inside. An entrance passage 4 and an exit passage 5 are opened in the vacant chamber 3. A valve seat 6 projecting in an annular shape is formed at the end of the outlet passage 5 on the side of the empty chamber 3, and a valve port 7 is formed by the valve seat 6. A metal diaphragm 8 is arranged facing the valve seat 6 from the vacant chamber 3 side. Two upper and lower annular tension plates 9 and 10 are welded to the periphery of the metal diaphragm 8. The metal diaphragm 8 is placed on a protrusion 11 provided so as to protrude concentrically with the valve seat 6, and is sandwiched between an inner lid 12 fastened to the protrusion 11. A through hole 13 is formed in the protrusion 11 to communicate with the empty chamber 3 divided into two by the metal diaphragm 8.

金属製ダイヤフラム8と内蓋12の間に圧力室14を形成し、入口通路4と圧力室14を連通する導入孔15を内蓋12の中央に貫通して形成する。金属製ダイヤフラム8の中央に圧力室14と出口通路5を連通する導出孔16を有する短管17を溶接する。導入孔15と導出孔16は上下に対向して形成する。導入孔15と導出孔16を開閉する反転バイメタル弁18を圧力室14内に自由状態で配置する。反転バイメタル弁18は円板状の反転バイメタル板18aと、反転バイメタル板18aの上面に固着され導入孔15を開閉する導入弁体18bと、反転バイメタル板18aの下面に固着され導出孔16を開閉する導出弁体18cとから成り、高温時に実線で示すように凹状に湾曲して導入孔15を開口し導出孔16を閉口すると共に低温時に二点鎖線で示すように凸状に反転して導入孔15を閉口し導出孔16を開口する。 A pressure chamber 14 is formed between the metal diaphragm 8 and the inner lid 12, and an introduction hole 15 communicating with the inlet passage 4 and the pressure chamber 14 is formed through the center of the inner lid 12 . A short pipe 17 having a lead-out hole 16 communicating with the pressure chamber 14 and the outlet passage 5 is welded to the center of the metal diaphragm 8. The introduction hole 15 and the lead-out hole 16 are formed to face each other up and down. A reverse bimetal valve 18 that opens and closes the introduction hole 15 and the lead-out hole 16 is disposed in the pressure chamber 14 in a free state. The reverse bimetal valve 18 is a disc-shaped reverse bimetal plate 18a, an introduction valve body 18b that is fixed to the upper surface of the reverse bimetal plate 18a to open and close the introduction hole 15, and a lower surface of the reverse bimetal plate 18a that is fixed to the lower surface of the reverse bimetal plate 18a. The lead-out valve body 18c is configured to be curved concavely as shown by a solid line at a high temperature to open the introduction hole 15 and close the lead-out hole 16 and to be inverted and introduced into a convex shape as shown by a two-dot chain line at a low temperature. The hole 15 is closed and the outlet hole 16 is opened.

高温時、反転バイメタル弁18は実線で示すように凹状に湾曲して導入孔15を開口し導出孔16を閉口する。圧力室14が入口通路4側圧力に近い高圧となり、金属製ダイヤフラム8は下方に湾曲し、弁座6に着座して弁口7を閉口する。低温時、バイメタル弁16は二点鎖線で示すように凸状に反転して導入孔15を閉口し導出孔16を開口する。圧力室14が出口通路5側圧力に近い低圧となり、金属製ダイヤフラム8は上方に湾曲し、弁座6から離座して弁口7を開口する。   At a high temperature, the reverse bimetal valve 18 is concavely curved as shown by a solid line, opens the introduction hole 15 and closes the outlet hole 16. The pressure chamber 14 becomes a high pressure close to the pressure on the inlet passage 4 side, and the metal diaphragm 8 is bent downward, sits on the valve seat 6 and closes the valve port 7. At a low temperature, the bimetal valve 16 reverses in a convex shape as indicated by a two-dot chain line, closes the introduction hole 15 and opens the outlet hole 16. The pressure chamber 14 becomes a low pressure close to the pressure on the outlet passage 5 side, and the metal diaphragm 8 is curved upward and is separated from the valve seat 6 to open the valve port 7.

本発明の実施例のパイロット式スチームトラップの断面図である。It is sectional drawing of the pilot type steam trap of the Example of this invention.

符号の説明Explanation of symbols

1 本体
2 蓋
3 空室
4 入口通路
5 出口通路
6 弁座
7 弁口
8 金属製ダイヤフラム
12 内蓋
14 圧力室
15 導入孔
16 導出孔
18 反転バイメタル弁
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Empty room 4 Inlet passage 5 Outlet passage 6 Valve seat 7 Valve port 8 Metal diaphragm 12 Inner lid 14 Pressure chamber 15 Inlet hole 16 Outlet hole 18 Reverse bimetal valve

Claims (1)

入口通路と出口通路および両通路を連通する弁口を形成するトラップ筐体、入口通路側から弁口に対向して配され圧力変動に応じて湾曲して弁口を開閉する金属ダイヤフラム、トラップ筐体壁に締結された内蓋と金属ダイヤフラムによって形成された圧力室、入口通路と圧力室とを連通する様に内蓋に貫通して設けられた導入孔、圧力室と出口通路とを連通する様に金属ダイヤフラムに貫通して設けられた導出孔、導入孔を低温時に閉口し高温時に開口すると共に導出孔を低温時に開口し高温時に閉口する反転バイメタル弁から成ることを特徴とするパイロット式スチームトラップ。 Trap housing that forms an inlet passage, an outlet passage, and a valve port that communicates both passages, a metal diaphragm that faces the valve port from the inlet passage side and curves in response to pressure fluctuations, and opens and closes the valve port, trap housing A pressure chamber formed by an inner lid fastened to a body wall and a metal diaphragm, an inlet passage and a pressure chamber and an outlet passage provided in the inner lid so as to communicate with the inlet passage and the pressure chamber. In this way, the pilot-type steam is composed of a reversing bimetal valve that opens at a low temperature and opens at a high temperature and opens a lead-out hole at a low temperature and closes at a high temperature. trap.
JP2008034829A 2008-02-15 2008-02-15 Pilot steam trap Expired - Fee Related JP5037380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008034829A JP5037380B2 (en) 2008-02-15 2008-02-15 Pilot steam trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008034829A JP5037380B2 (en) 2008-02-15 2008-02-15 Pilot steam trap

Publications (2)

Publication Number Publication Date
JP2009192012A JP2009192012A (en) 2009-08-27
JP5037380B2 true JP5037380B2 (en) 2012-09-26

Family

ID=41074211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008034829A Expired - Fee Related JP5037380B2 (en) 2008-02-15 2008-02-15 Pilot steam trap

Country Status (1)

Country Link
JP (1) JP5037380B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5989324B2 (en) * 2011-10-19 2016-09-07 株式会社テイエルブイ Disc type steam trap
CN113819390B (en) * 2021-11-22 2022-02-11 艾肯(江苏)工业技术有限公司 Discharge capacity automatic adjustment type anti-blocking drain valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044332U (en) * 1973-08-20 1975-05-06
GB1537315A (en) * 1975-06-02 1978-12-29 Texas Instruments Inc Thermally responsive valve assemblies
JPS5281724A (en) * 1975-12-29 1977-07-08 Texas Instruments Inc Heat answering valve controlled by temperatures at two points
JPS52116728U (en) * 1976-03-02 1977-09-05
JPS6252223U (en) * 1985-09-20 1987-04-01
JP2008069935A (en) * 2006-09-15 2008-03-27 Tlv Co Ltd Pilot type steam trap

Also Published As

Publication number Publication date
JP2009192012A (en) 2009-08-27

Similar Documents

Publication Publication Date Title
JP5037380B2 (en) Pilot steam trap
JP2007162886A (en) Exhaust valve
JP2008069935A (en) Pilot type steam trap
JP2007138989A (en) Exhaust valve
JP2007138987A (en) Exhaust valve
JP5431034B2 (en) Exhaust valve
JP2009019730A (en) Exhaust valve
JP4781861B2 (en) Exhaust valve
JP5202965B2 (en) Exhaust valve
JP5128259B2 (en) Float type steam trap
JP4409916B2 (en) Steam trap with piping joint
JP5005558B2 (en) Exhaust valve
JP5225627B2 (en) Exhaust valve
JP2011106528A (en) Check valve
JP2007107642A (en) Steam trap with piping joint
JP5220528B2 (en) Downward bucket type steam trap
JP2002054754A (en) Exhaust valve
JP2012167796A (en) Pilot type steam trap
JP5220390B2 (en) Exhaust valve
JP5138389B2 (en) Exhaust valve
JP5053008B2 (en) Exhaust valve
JP4275509B2 (en) Steam trap with piping joint
JP2014156897A (en) Disc-type steam trap
JP2014156896A (en) Disc-type steam trap
JP5160395B2 (en) Float type drain trap

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110118

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120410

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120424

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120606

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: 20120703

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120704

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150713

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5037380

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees