JP2005299866A - Steam trap - Google Patents

Steam trap Download PDF

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Publication number
JP2005299866A
JP2005299866A JP2004119815A JP2004119815A JP2005299866A JP 2005299866 A JP2005299866 A JP 2005299866A JP 2004119815 A JP2004119815 A JP 2004119815A JP 2004119815 A JP2004119815 A JP 2004119815A JP 2005299866 A JP2005299866 A JP 2005299866A
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Prior art keywords
valve
valve port
steam trap
outlet
controller
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JP2004119815A
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Japanese (ja)
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Tomonori Maruta
智則 丸田
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TLV Co Ltd
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TLV Co Ltd
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Priority to JP2004119815A priority Critical patent/JP2005299866A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a steam trap capable of preventing accumulation of foreign matters on a valve port and a valve element. <P>SOLUTION: A valve casing having a valve chamber 5 inside is formed by screwing a lid 4 to a body 3 having an inlet 1 and an outlet 2. A spherical float 8 is arranged in the valve chamber 5 in a free condition. A thermal power generating element 18 is mounted on the upper surface of the lid 4. A valve port 6 communicating with the valve chamber 5 and the outlet 2 is provided in between. An ultrasonic transducer 10 and a controller 11 are integrally formed in one end of a valve seat 9 forming the valve port 6. The thermal power generating element 18 and the controller 11 are connected to each other by a connection line. When foreign matters are attached and accumulated on the valve port 6 and the outer surface of the spherical float 8 due to long-term operation of the steam trap, the ultrasonic transducer 10 is driven on the basis of a drive signal from the controller 11 so as to ultrasonically clean the foreign matters. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、蒸気が凝縮して発生した復水の流入によって弁口を開口して復水を外部へ排出し、一方、蒸気は外部へ排出することのない蒸気トラップに関する。   The present invention relates to a steam trap that opens a valve port by the inflow of condensate generated by condensing steam and discharges the condensate to the outside, while steam does not discharge to the outside.

蒸気トラップは、蒸気と復水の温度差や比重差を利用して復水を排出したり、あるいは、蒸気と復水の熱力学的特性差を利用して復水を排出するものである。   The steam trap discharges condensate using a difference in temperature and specific gravity of steam and condensate, or discharges condensate using a difference in thermodynamic characteristics of steam and condensate.

従来の蒸気トラップにおいては、弁体が離着座して開閉する弁口のシール面及び弁体表面に流体中のゴミやスケールや溶融金属等の異物が付着して弁体が弁口を完全にシールすることができなくなった場合に、外部から作業者がネジ等を回転操作して異物を削除しなければならない煩雑さを有する問題点があった。
特開2002−372166号公報
In conventional steam traps, foreign matter such as dust, scale, or molten metal in the fluid adheres to the sealing surface of the valve opening and the valve body surface that the valve element opens and closes and opens and closes, and the valve element completely opens the valve opening. When sealing is no longer possible, there is a problem in that an operator has to delete a foreign object by rotating a screw or the like from the outside.
JP 2002-372166 A

解決しようとする課題は、弁口や弁体表面に異物が付着堆積した場合に、これらの異物を簡単に削除することのできる蒸気トラップを提供することである。   The problem to be solved is to provide a steam trap that can easily remove foreign matter when foreign matter adheres to and accumulates on the valve opening or valve body surface.

本発明は、弁ケーシングで入口と弁室と出口を形成し、弁室と出口の間に弁室と出口を連通する弁口を設け、弁口を開閉する弁体を設けたものにおいて、弁体又は弁口に超音波振動を与える超音波振動子を弁体又は弁口の近傍に取り付けて、弁体又は弁口に付着した異物を超音波で洗浄するものである。   In the present invention, an inlet, a valve chamber, and an outlet are formed in a valve casing, a valve port that communicates between the valve chamber and the outlet is provided between the valve chamber and the outlet, and a valve body that opens and closes the valve port is provided. An ultrasonic transducer that applies ultrasonic vibration to the body or the valve port is attached in the vicinity of the valve body or the valve port, and foreign matter adhering to the valve body or the valve port is cleaned with ultrasonic waves.

本発明は、弁体又は弁口に超音波振動を与える超音波振動子を取り付けたことによって、弁口や弁体表面に付着した異物を超音波で簡単に削除し洗浄することができる。   According to the present invention, by attaching an ultrasonic vibrator that applies ultrasonic vibration to the valve body or the valve port, foreign matter adhering to the valve port or the surface of the valve body can be easily removed and cleaned with ultrasonic waves.

本発明の蒸気トラップは、超音波振動子を弁体の下方部や弁口の内外周等復水が溜まり易い箇所に取り付けることによって、超音波振動により異物を確実に除去することができる。   The steam trap of the present invention can remove foreign matters reliably by ultrasonic vibration by attaching the ultrasonic vibrator to a portion where condensate tends to accumulate, such as the lower part of the valve body and the inner and outer periphery of the valve port.

本実施例においては、蒸気トラップとしてフリーフロート式蒸気トラップを用いた例を示す。図1において、入口1と出口2を有する本体3に蓋4をねじ結合して内部に弁室5を有する弁ケーシングを形成する。弁室5には入口1が連通すると共に、出口2が弁口6と連通孔7を通して連通する。   In this embodiment, an example in which a free float steam trap is used as the steam trap is shown. In FIG. 1, a lid 4 is screwed to a body 3 having an inlet 1 and an outlet 2 to form a valve casing having a valve chamber 5 therein. An inlet 1 communicates with the valve chamber 5, and an outlet 2 communicates with the valve port 6 through the communication hole 7.

弁室5内で弁口6に対向して弁体としての球形フロート8を自由状態で配置する。球形フロート8は、ステンレス製薄板で製作した中空状で、入口1から弁室5内へ復水が流入してくるとその浮力によって浮上して弁口6から離れて弁口6を開口することによって、復水を出口2側へ排出する。復水が排出され弁室5内の液位が低下すると球形フロート8も降下して弁口6を閉口することによって蒸気が出口2側へ排出されることを防止する。 A spherical float 8 as a valve body is disposed in a free state so as to face the valve port 6 in the valve chamber 5. The spherical float 8 is a hollow shape made of a stainless steel thin plate, and when condensate flows into the valve chamber 5 from the inlet 1, it floats by its buoyancy and leaves the valve port 6 to open the valve port 6. The condensate is discharged to the outlet 2 side. When the condensate is discharged and the liquid level in the valve chamber 5 is lowered, the spherical float 8 is also lowered to prevent the steam from being discharged to the outlet 2 side by closing the valve port 6.

弁口6を形成する円筒形状の弁座9の端部に超音波振動子10を接して取り付ける。超音波振動子10は、円環状でコントローラ11に内蔵した発振器から発せられる電気振動を機械振動に変換して、弁口6を有する弁座9へ伝達することによって、弁口6の球形フロート8外表面とのシール面に付着堆積したゴミや溶融金属等の異物を超音波洗浄する。   An ultrasonic transducer 10 is attached in contact with the end of a cylindrical valve seat 9 that forms the valve port 6. The ultrasonic transducer 10 converts an electric vibration emitted from an oscillator built in the controller 11 into a mechanical vibration, and transmits the mechanical vibration to a valve seat 9 having the valve port 6. Foreign matter such as dust and molten metal deposited on the seal surface with the outer surface is ultrasonically cleaned.

本実施例においては、超音波振動子10を弁座9の下端部に取り付けた例を示したが、更に小型の超音波振動子を、弁口6の外周部12や内周部13、あるいは、弁座9の下端内周部14などに取り付けることができる。また、超音波振動子を、弁体としての球形フロート8の下部15あるいは本体3の外部16などに取り付けることができる。 In the present embodiment, an example in which the ultrasonic transducer 10 is attached to the lower end portion of the valve seat 9 has been shown. The valve seat 9 can be attached to the inner peripheral portion 14 at the lower end. Further, the ultrasonic transducer can be attached to the lower portion 15 of the spherical float 8 as the valve body, the outside 16 of the main body 3 or the like.

超音波振動子10の端面に接して断熱材17を取り付け、更にコントローラ11を一体に取り付ける。一方、弁ケーシングを構成する蓋4の外表面に接して熱発電素子18を取り付ける。熱発電素子18の端面には放熱フィン19を接続する。熱発電素子18は、弁室5内へ流入する蒸気や復水の熱を基に発電する素子であり、図示しない接続線によりコントローラ11と接続して超音波振動子10を駆動するための電源とする。   The heat insulating material 17 is attached in contact with the end face of the ultrasonic transducer 10, and the controller 11 is attached integrally. On the other hand, the thermoelectric generator 18 is attached in contact with the outer surface of the lid 4 constituting the valve casing. A heat radiating fin 19 is connected to the end face of the thermoelectric generator 18. The thermoelectric generator 18 is an element that generates electric power based on the steam flowing into the valve chamber 5 and the heat of the condensate, and is a power source for driving the ultrasonic transducer 10 by connecting to the controller 11 through a connection line (not shown). And

コントローラ11内には、熱発電素子18からの電気を充電する充電器や、充電器での充電量を表示する充電表示器、あるいは、超音波振動子10の駆動周期を設定する周期設定器などを内蔵する。 In the controller 11, a charger that charges electricity from the thermoelectric generator 18, a charge indicator that displays the amount of charge in the charger, a cycle setting device that sets the drive cycle of the ultrasonic transducer 10, etc. Built in.

通常、蒸気トラップは、入口1から流入する復水を球形フロート8が浮上して弁口6を開口することによって出口2側へ排出する。復水には、蒸気トラップ入口側の配管や蒸気使用装置で発生した鉄さびや溶融金属等の異物が混入しており、蒸気トラップを長期間使用した場合に、これらの異物が、球形フロート8の外表面や弁座9のシール面、あるいは、弁口6の内周部13などに付着し堆積する。このように、異物が付着堆積した場合に、超音波振動子10を駆動して超音波振動を、弁座9や球形フロート8に与えることによって、異物を洗浄することができる。   Normally, the steam trap discharges the condensate flowing in from the inlet 1 to the outlet 2 side when the spherical float 8 rises and opens the valve port 6. The condensate contains foreign matter such as iron rust and molten metal generated in the steam trap inlet side pipe and steam using device, and these foreign matter will remain in the spherical float 8 when the steam trap is used for a long time. It adheres to and accumulates on the outer surface, the seal surface of the valve seat 9, the inner peripheral portion 13 of the valve port 6, or the like. In this way, when foreign matter is deposited and deposited, the ultrasonic vibrator 10 is driven to apply ultrasonic vibration to the valve seat 9 or the spherical float 8 so that the foreign matter can be cleaned.

なお、超音波洗浄を行う場合は、洗浄箇所が液体中に浸漬していなければならないが、本実施例の蒸気トラップにおいては球形フロート8のほぼ中央付近まで常時復水が滞留しているために、弁口6や球形フロート8の下部半球部分を超音波洗浄することができる。 In addition, when performing ultrasonic cleaning, the cleaning part must be immersed in the liquid, but in the steam trap of the present embodiment, the condensate always stays up to almost the center of the spherical float 8. The lower hemisphere portion of the valve port 6 and the spherical float 8 can be ultrasonically cleaned.

本実施例においては、蒸気トラップとしてフリーフロート式蒸気トラップを用いた例を示したが、その他の蒸気トラップ、例えば、バケット式蒸気トラップ、ディスク式蒸気トラップ、バイメタルやベローズを利用した感温式蒸気トラップ、あるいは、温調トラップなど従来から使用されている蒸気トラップにも同様に使用することができる。   In this embodiment, an example using a free float steam trap as a steam trap has been shown, but other steam traps such as a bucket steam trap, a disk steam trap, a temperature sensitive steam using a bimetal or a bellows. It can be similarly used for a steam trap conventionally used such as a trap or a temperature control trap.

本発明の蒸気トラップの一部断面構成図。The partial cross section block diagram of the steam trap of this invention.

符号の説明Explanation of symbols

1 入口
2 出口
3 本体
4 蓋
5 弁室
6 弁口
8 球形フロート
9 弁座
10 超音波振動子
11 コントローラ
18 熱発電素子
19 放熱フィン
DESCRIPTION OF SYMBOLS 1 Inlet 2 Outlet 3 Main body 4 Lid 5 Valve chamber 6 Valve port 8 Spherical float 9 Valve seat 10 Ultrasonic vibrator 11 Controller 18 Thermoelectric generation element 19 Radiation fin

Claims (1)

弁ケーシングで入口と弁室と出口を形成し、弁室と出口の間に弁室と出口を連通する弁口を設け、弁口を開閉する弁体を設けたものにおいて、弁体又は弁口に超音波振動を与える超音波振動子を弁体又は弁口の近傍に取り付けて、弁体又は弁口に付着した異物を超音波で洗浄することを特徴とする蒸気トラップ。
In the valve casing, an inlet, a valve chamber, and an outlet are formed, a valve port that connects the valve chamber and the outlet is provided between the valve chamber and the outlet, and a valve body that opens and closes the valve port is provided. A steam trap, characterized in that an ultrasonic transducer for applying ultrasonic vibration to the valve body or the valve opening is attached in the vicinity of the valve body or the valve opening, and foreign matter adhering to the valve body or the valve opening is cleaned with ultrasonic waves.
JP2004119815A 2004-04-15 2004-04-15 Steam trap Pending JP2005299866A (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019032042A (en) * 2017-08-09 2019-02-28 株式会社テイエルブイ Steam trap with cleaning mechanism and method of cleaning steam trap
US20210033245A1 (en) * 2018-04-09 2021-02-04 Velan Inc. Electronic steam trap
CN114992352A (en) * 2022-04-11 2022-09-02 安徽铜都流体科技股份有限公司 a ball valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019032042A (en) * 2017-08-09 2019-02-28 株式会社テイエルブイ Steam trap with cleaning mechanism and method of cleaning steam trap
JP7001387B2 (en) 2017-08-09 2022-01-19 株式会社テイエルブイ Steam trap with cleaning mechanism and how to clean the steam trap
US20210033245A1 (en) * 2018-04-09 2021-02-04 Velan Inc. Electronic steam trap
US12000535B2 (en) * 2018-04-09 2024-06-04 Velan Inc. Electronic steam trap
CN114992352A (en) * 2022-04-11 2022-09-02 安徽铜都流体科技股份有限公司 a ball valve

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