JP2007333092A - Steam trap - Google Patents

Steam trap Download PDF

Info

Publication number
JP2007333092A
JP2007333092A JP2006165945A JP2006165945A JP2007333092A JP 2007333092 A JP2007333092 A JP 2007333092A JP 2006165945 A JP2006165945 A JP 2006165945A JP 2006165945 A JP2006165945 A JP 2006165945A JP 2007333092 A JP2007333092 A JP 2007333092A
Authority
JP
Japan
Prior art keywords
valve
discharge passage
inlet
chamber
valve seat
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
Application number
JP2006165945A
Other languages
Japanese (ja)
Inventor
Tetsuo Asada
哲夫 浅田
Tomonori Maruta
智則 丸田
Tadaaki Kumamoto
匡章 隈元
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 JP2006165945A priority Critical patent/JP2007333092A/en
Publication of JP2007333092A publication Critical patent/JP2007333092A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Float Valves (AREA)
  • Details Of Valves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent being scalded by preventing fluid in a valve casing from blowing to the outside. <P>SOLUTION: The valve casing is formed from a body 1 and a lid 2. An inlet 5, a valve chamber 4 and an outlet 7 are formed in the valve casing. A valve seat member 9 is mounted on a lower part of the valve chamber 4. A discharge passage 8 communicating the valve chamber 4 with the outlet 7 side is formed on the valve seat member 9. A float 11 as a valve member for opening/closing the discharge passage 8 by being separated from/seated on the valve seat member 9 is arranged in the valve chamber 4. A piston 15 as a pressure responsive member is stored in a pressure chamber 14 formed by a plug 13, displaceably in the axial direction of the discharge passage 8. An operation member 16 movable forward and backward in the discharge passage 8 is fixed to the piston 15. The inlet 5 is connected to an inlet pipe 21, and an inlet communicating path 18 branched from the inlet pipe 21 and communicated with a pressure chamber 14 is connected to the inlet pipe 21. An on-off valve 22 is arranged on the inlet communicating path 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、蒸気配管系に発生するドレンを弁部材によって自動的に排出するスチームトラップに関し、特に弁部材が離着座する弁座部材の排出通路内面に付着した流体中の異物を掃除できるものに関する。   The present invention relates to a steam trap that automatically discharges drain generated in a steam piping system by a valve member, and more particularly, to one that can clean foreign matter in a fluid adhering to the inner surface of a discharge passage of a valve seat member on which the valve member is seated. .

従来のフロート式トラップは、弁ケーシングで入口と弁室と出口を形成し、弁室の下部に弁座部材を取り付け、弁座部材に弁室を出口側に連通する排出通路を形成し、弁室内に弁座部材に離着座して排出通路を開閉するフロートを配置し、外部から進退操作可能な操作部材を排出通路内に配置したもので、手動により操作部材を進退せしめて弁座部材の排出通路内面に付着した異物を掃除するものである。   In the conventional float trap, an inlet, a valve chamber, and an outlet are formed by a valve casing, a valve seat member is attached to a lower portion of the valve chamber, and a discharge passage that communicates the valve chamber to the outlet side is formed in the valve seat member. A float that opens and closes the discharge passage by seating on and off the valve seat member is arranged in the room, and an operation member that can be moved forward and backward from the outside is arranged in the discharge passage. It cleans up foreign matter adhering to the inner surface of the discharge passage.

上記従来のフロート式トラップは、操作部材の気密を保つシール部材が劣化してくると、操作部材を外部から進退操作せしめたときに、弁ケーシング内の流体が外部に噴出して火傷する危険があった。
実公昭４９−３６７４７号公報 In the conventional float trap, when the sealing member for keeping the airtightness of the operation member deteriorates, there is a risk that the fluid in the valve casing may be ejected to the outside and burned when the operation member is moved forward and backward from the outside. there were.
Japanese Utility Model Publication No. 49-36747

解決しようとする課題は、弁ケーシング内の流体が外部に噴出しないようにして火傷を防止することである。   The problem to be solved is to prevent burns by preventing the fluid in the valve casing from ejecting to the outside.

本発明は、弁ケーシングで入口と弁室と出口を形成し、弁室を出口側に連通する排出通路を有する弁座部材を設け、弁室内に弁座部材に離着座して排出通路を開閉する弁部材を配置し、排出通路内に進退可能な操作部材を配置し、操作部材の進退により弁座部材の排出通路内面に付着した異物を掃除するものにおいて、操作部材を圧力応動部材に連結し、入口連通路を介して入口側に連通する圧力室に圧力応動部材を配置し、入口連通路に配置した開閉弁を開閉操作することにより圧力応動部材を駆動して操作部材を進退させることを特徴とする。   The present invention provides a valve seat member having a discharge passage that forms an inlet, a valve chamber, and an outlet in a valve casing, and communicates the valve chamber to the outlet side, and opens and closes the discharge passage by seating on the valve seat member. A valve member is arranged, an operation member that can be advanced and retracted is arranged in the discharge passage, and the operation member is connected to the pressure responsive member in order to clean foreign matter adhering to the inner surface of the discharge passage of the valve seat member by the advancement and retraction of the operation member The pressure responsive member is disposed in the pressure chamber communicating with the inlet side via the inlet communication passage, and the on / off valve disposed in the inlet communication passage is opened / closed to drive the pressure responsive member to advance / retreat the operation member. It is characterized by.

本発明は、入口連通路に配置した開閉弁を開閉操作することにより操作部材を進退させるものであるので、操作部材を進退させるときに弁ケーシング内の流体が外部に噴出することがなく、火傷を防止できるという優れた効果を生じる。   According to the present invention, the operation member is advanced and retracted by opening and closing the on-off valve disposed in the inlet communication passage. Therefore, the fluid in the valve casing is not ejected to the outside when the operation member is advanced and retracted. This produces an excellent effect that can be prevented.

本発明のスチームトラップは、操作部材を圧力応動部材に連結し、入口連通路を介して入口側に連通する圧力室に圧力応動部材を配置し、入口連通路に配置した開閉弁を開閉操作することにより圧力応動部材を駆動して操作部材を進退させるものである。すなわち、入口連通路に配置した開閉弁を開閉操作することにより操作部材を進退させるものであり、操作部材を手動で直接操作するものでないので、操作部材を進退させるときに弁ケーシング内の流体が外部に噴出することがない。そのため、火傷することを防止できる。   In the steam trap of the present invention, the operating member is connected to the pressure responsive member, the pressure responsive member is disposed in the pressure chamber communicating with the inlet side via the inlet communication path, and the on-off valve disposed in the inlet communication path is opened and closed. Thus, the pressure responsive member is driven to advance and retract the operation member. In other words, the operating member is advanced and retracted by opening and closing the on-off valve disposed in the inlet communication path, and the operating member is not directly operated manually. Therefore, when the operating member is advanced and retracted, the fluid in the valve casing It does not erupt outside. Therefore, it is possible to prevent burns.

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をボルト３で締結して弁ケーシング形成し、内部に弁室４を形成する。本体１は入口５と出口通路６と出口７を有し、入口５は弁室４の上部に連通する。入口５と出口７は同一軸上に形成する。弁室４の下部の蓋２に排出通路８を開けた弁座部材９をねじ結合する。蓋２は出口通路１０を有し、弁室４の下部は排出通路８から出口通路１０，６を介して出口７に連通する。弁室４内に弁座部材９の弁室側端面に離着座して排出通路８を開閉する弁部材としての中空球形のフロート１１を自由状態で配置する。フロート１１が排出通路８を閉じた位置で当接するフロート座１２をフロート１１の下方に、図面の手前側と向う側に２つ設ける。   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 with bolts 3 to form a valve casing, and a valve chamber 4 is formed inside. The main body 1 has an inlet 5, an outlet passage 6 and an outlet 7, and the inlet 5 communicates with the upper portion of the valve chamber 4. The inlet 5 and the outlet 7 are formed on the same axis. A valve seat member 9 having a discharge passage 8 is screwed to the lid 2 at the bottom of the valve chamber 4. The lid 2 has an outlet passage 10, and the lower portion of the valve chamber 4 communicates from the discharge passage 8 to the outlet 7 through the outlet passages 10 and 6. A hollow spherical float 11 serving as a valve member that opens and closes the discharge passage 8 by being seated on the valve chamber side end face of the valve seat member 9 is disposed in the valve chamber 4 in a free state. Two float seats 12 with which the float 11 abuts at the position where the discharge passage 8 is closed are provided below the float 11 on the side facing the front side of the drawing.

蓋２に弁座部材９と同一軸上にプラグ１３をねじ結合する。プラグ１３で形成する圧力室１４に排出通路８の軸方向に変位可能に圧力応動部材としてのピストン１５を収容する。排出通路８内を進退可能な操作部材１６をピストン１５に固着する。弁座部材９とピストン１５の間にピストン１５をプラグ１３側に付勢するコイルバネ１７を配置する。入口５は入口配管２１に接続する。入口配管２１に入口配管２１から分岐して圧力室１４に連通する入口連通路１８を接続する。入口連通路１８に開閉弁２２を配置する。ピストン１５に逃がし孔１９を開ける。逃がし孔１９の流路面積は入口連通路１８の流路面積よりも小さく形成する。開閉弁２２を開けると、入口配管２１の圧力が圧力室１４に導入されるので圧力室１４が高圧になり、ピストン１５がコイルバネ１７の付勢力に打ち勝って前進して操作部材１６を前進させる。開閉弁２２を閉じると、圧力室１４の圧力が逃がし孔１９から出口７側に逃げるので圧力室１４が低圧になり、ピストン１５がコイルバネ１７の付勢力により後退して操作部材１６を後退させる。   A plug 13 is screwed to the lid 2 on the same axis as the valve seat member 9. A piston 15 as a pressure responsive member is accommodated in a pressure chamber 14 formed by the plug 13 so as to be displaceable in the axial direction of the discharge passage 8. An operation member 16 capable of moving back and forth in the discharge passage 8 is fixed to the piston 15. A coil spring 17 that urges the piston 15 toward the plug 13 is disposed between the valve seat member 9 and the piston 15. The inlet 5 is connected to the inlet pipe 21. An inlet communication path 18 branched from the inlet pipe 21 and communicating with the pressure chamber 14 is connected to the inlet pipe 21. An on-off valve 22 is disposed in the inlet communication path 18. A relief hole 19 is opened in the piston 15. The flow passage area of the escape hole 19 is formed smaller than the flow passage area of the inlet communication passage 18. When the on-off valve 22 is opened, the pressure in the inlet pipe 21 is introduced into the pressure chamber 14, so that the pressure chamber 14 becomes high pressure and the piston 15 overcomes the urging force of the coil spring 17 and moves forward to advance the operation member 16. When the on-off valve 22 is closed, the pressure in the pressure chamber 14 escapes from the hole 19 to the outlet 7 side, so that the pressure chamber 14 becomes low pressure, and the piston 15 is retracted by the biasing force of the coil spring 17 to retract the operation member 16.

通常は、開閉弁２２を閉じた状態で使用する。入口５から流入したドレンは弁室４内に溜り、液面に応じてフロート１１が浮上降下して弁座部材９に離着座して排出通路８を開閉する。排出通路８が開けられると弁室４内のドレンが排出通路８、出口通路６，１０を通して出口７に排出され、排出通路８が閉じられると弁室４内の蒸気の漏出が防止される。   Normally, the on-off valve 22 is used in a closed state. Drain flowing in from the inlet 5 accumulates in the valve chamber 4, and the float 11 rises and falls according to the liquid level and is seated on and off the valve seat member 9 to open and close the discharge passage 8. When the discharge passage 8 is opened, drain in the valve chamber 4 is discharged to the outlet 7 through the discharge passage 8 and the outlet passages 6 and 10, and when the discharge passage 8 is closed, leakage of steam in the valve chamber 4 is prevented.

弁座部材９の排出通路８の先端部８ａ内面に付着した異物を掃除する場合、開閉弁２２を開ける。開閉弁２２が開けられると入口配管２１の圧力が圧力室１４に導入されて圧力室１４が高圧になり、ピストン１５が前進して操作部材１６を前進させる。これにより、操作部材１６の先端部１６ａで弁座部材９の排出通路８の先端部８ａ内面を掃除する。   When cleaning the foreign matter adhering to the inner surface of the tip 8a of the discharge passage 8 of the valve seat member 9, the on-off valve 22 is opened. When the on-off valve 22 is opened, the pressure in the inlet pipe 21 is introduced into the pressure chamber 14, the pressure chamber 14 becomes high pressure, and the piston 15 advances to advance the operation member 16. As a result, the inner surface of the distal end portion 8 a of the discharge passage 8 of the valve seat member 9 is cleaned by the distal end portion 16 a of the operation member 16.

本発明の実施例のフロート式スチームトラップの断面図。Sectional drawing of the float type steam trap of the Example of this invention.

符号の説明Explanation of symbols

１ 本体
２ 蓋
４ 弁室
５ 入口
７ 出口
８ 排出通路
８ａ 排出通路の先端部
９ 弁座部材
１１ フロート
１４ 圧力室
１５ ピストン
１６ 操作部材
１８ 入口連通路
２２ 開閉弁
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 4 Valve chamber 5 Inlet 7 Outlet 8 Discharge passage 8a Discharge passage tip 9 Valve seat member 11 Float 14 Pressure chamber 15 Piston 16 Operation member 18 Inlet communication passage 22 Open / close valve

Claims (1)

弁ケーシングで入口と弁室と出口を形成し、弁室を出口側に連通する排出通路を有する弁座部材を設け、弁室内に弁座部材に離着座して排出通路を開閉する弁部材を配置し、排出通路内に進退可能な操作部材を配置し、操作部材の進退により弁座部材の排出通路内面に付着した異物を掃除するものにおいて、操作部材を圧力応動部材に連結し、入口連通路を介して入口側に連通する圧力室に圧力応動部材を配置し、入口連通路に配置した開閉弁を開閉操作することにより圧力応動部材を駆動して操作部材を進退させることを特徴とするスチームトラップ。
A valve seat member having a discharge passage that forms an inlet, a valve chamber, and an outlet in the valve casing, and that communicates the valve chamber with the outlet side is provided, and a valve member that opens and closes the discharge passage by being seated in and out of the valve seat member. An operation member that can be moved forward and backward in the discharge passage is disposed, and foreign matter adhering to the inner surface of the discharge passage of the valve seat member due to advancement and retraction of the operation member is cleaned. A pressure responsive member is disposed in a pressure chamber communicating with the inlet side via a passage, and the pressure responsive member is driven to open and close by opening / closing a switching valve disposed in the inlet communication passage. steam trap.
JP2006165945A 2006-06-15 2006-06-15 Steam trap Pending JP2007333092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006165945A JP2007333092A (en) 2006-06-15 2006-06-15 Steam trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006165945A JP2007333092A (en) 2006-06-15 2006-06-15 Steam trap

Publications (1)

Publication Number Publication Date
JP2007333092A true JP2007333092A (en) 2007-12-27

Family

ID=38932758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006165945A Pending JP2007333092A (en) 2006-06-15 2006-06-15 Steam trap

Country Status (1)

Country Link
JP (1) JP2007333092A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069934A (en) * 2006-09-15 2008-03-27 Tlv Co Ltd Float type drain trap
JP2009222123A (en) * 2008-03-14 2009-10-01 Tlv Co Ltd Steam trap
JP2009257435A (en) * 2008-04-15 2009-11-05 Tlv Co Ltd Steam trap
JP2011038608A (en) * 2009-08-12 2011-02-24 Tlv Co Ltd Float type drain trap

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201298A (en) * 1987-02-16 1988-08-19 三井建設株式会社 Concrete-mortar injector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201298A (en) * 1987-02-16 1988-08-19 三井建設株式会社 Concrete-mortar injector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069934A (en) * 2006-09-15 2008-03-27 Tlv Co Ltd Float type drain trap
JP2009222123A (en) * 2008-03-14 2009-10-01 Tlv Co Ltd Steam trap
JP2009257435A (en) * 2008-04-15 2009-11-05 Tlv Co Ltd Steam trap
JP2011038608A (en) * 2009-08-12 2011-02-24 Tlv Co Ltd Float type drain trap

Similar Documents

Publication Publication Date Title
JP4932213B2 (en) Float type drain trap
JP4813253B2 (en) Float type steam trap
JP4861153B2 (en) steam trap
JP2007138984A (en) Float type steam trap
WO2014007206A1 (en) Float type drain trap
JP2007333092A (en) Steam trap
JP2005061524A (en) Float drain trap
JP4879660B2 (en) steam trap
JP4971121B2 (en) steam trap
JP4890092B2 (en) Float type steam trap
JP2009257435A (en) Steam trap
JP4879817B2 (en) Float type steam trap
JP5014744B2 (en) Float type drain trap
JP5005587B2 (en) steam trap
JP4879697B2 (en) steam trap
JP4879684B2 (en) Float type drain trap
JP4890227B2 (en) steam trap
JP5378101B2 (en) Float type drain trap
JP4790403B2 (en) Float type steam trap
JP2007187254A (en) Drain trap
JP2007333093A (en) Drain trap
JP2007138985A (en) Float type drain trap
JP4890128B2 (en) Drain trap
JP5001249B2 (en) Float type drain trap
JP4832932B2 (en) Drain trap

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090507

A977 Report on retrieval

Effective date: 20110621

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110628

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110825

A02 Decision of refusal

Effective date: 20111129

Free format text: JAPANESE INTERMEDIATE CODE: A02