JP2013204876A - Condensate recovery device - Google Patents
Condensate recovery device Download PDFInfo
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- JP2013204876A JP2013204876A JP2012072733A JP2012072733A JP2013204876A JP 2013204876 A JP2013204876 A JP 2013204876A JP 2012072733 A JP2012072733 A JP 2012072733A JP 2012072733 A JP2012072733 A JP 2012072733A JP 2013204876 A JP2013204876 A JP 2013204876A
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- condensate
- pressure
- inlet
- steam
- recovery device
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- 238000011084 recovery Methods 0.000 title claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
Description
本発明は、蒸気使用機器で発生した蒸気の凝縮水としての復水を、ボイラーや給水タンク等の所定の復水回収先へ回収する復水回収装置に関する。 The present invention relates to a condensate recovery apparatus that recovers condensate as condensate of steam generated in a steam-using device to a predetermined condensate recovery destination such as a boiler or a water supply tank.
従来の復水回収装置は、蒸気使用機器の復水出口側を蒸気トラップと復水集合タンクと逆止弁を介して復水圧送部材に接続し、この復水圧送部材の高圧操作流体排出口に圧力制御弁を取り付けたもので、熱エネルギー損失を少なくすることができるものである。 In the conventional condensate recovery device, the condensate outlet side of the steam-using device is connected to the condensate pumping member via the steam trap, the condensate collecting tank, and the check valve, and the high-pressure operation fluid discharge port of the condensate pumping member A pressure control valve is attached to the tube, and heat energy loss can be reduced.
この復水回収装置においては、蒸気使用機器で使用される蒸気圧力が低くなると、蒸気使用機器で発生した復水を確実に排出することができなくなる問題があった。これは、復水圧送部材の高圧操作流体排出口に取り付けた圧力制御弁によって、復水圧送部材の内部を大気圧以下の真空状態とすることができず、蒸気使用機器で使用される蒸気圧力が極端に低くなると、蒸気使用機器の復水を逆止弁を介して復水回収装置の内部へ流入させることができなくなるのである。 In this condensate recovery apparatus, there is a problem that if the steam pressure used in the steam-using device is low, the condensate generated in the steam-using device cannot be discharged reliably. This is because the pressure control valve attached to the high-pressure operating fluid discharge port of the condensate pumping member cannot bring the inside of the condensate pumping member into a vacuum state below atmospheric pressure, and the steam pressure used in steam-using equipment If the temperature becomes extremely low, the condensate of the steam-using device cannot be allowed to flow into the condensate recovery device via the check valve.
解決しようとする課題は、逆止弁を配置する必要をなくして、蒸気使用機器で使用される蒸気圧力が極端に低くなっても復水を確実に復水回収装置の内部へ流入させることのできる復水回収装置を提供すること。 The problem to be solved is that there is no need to install a check valve and that the condensate can flow into the condensate recovery device even if the steam pressure used in the steam-using equipment becomes extremely low. To provide a condensate recovery device.
本発明は、復水の流入口と還元口を設けた復水溜容器と、該復水溜容器に高圧操作流体の導入口と循環口を形成すると共に、水位と共に浮上降下するフロ―ト手段を配置して、該フロ―ト手段の移動に応じて上記高圧操作流体の導入口と循環口とを開閉して復水を圧送し回収するものにおいて、復水の流入口に逆止弁を配置することなく、高圧操作流体の導入口が開口すると、その高圧操作流体の流体圧力によって閉弁する開閉弁を復水の流入口に配置したものである。 The present invention provides a condensate reservoir provided with a condensate inlet and a reducing port, and a float means that rises and falls with the water level while forming an inlet and a circulation port for a high-pressure operating fluid in the condensate reservoir. A check valve is disposed at the inlet of the condensate in which the condensate is pumped and recovered by opening and closing the inlet and the circulation port of the high-pressure operating fluid according to the movement of the float means. Instead, an open / close valve that is closed by the fluid pressure of the high-pressure operating fluid when the high-pressure operating fluid inlet is opened is disposed at the condensate inlet.
本発明の復水回収装置は、高圧操作流体の導入口が開口すると、その高圧操作流体の流体圧力によって閉弁する開閉弁を復水の流入口に配置したことによって、蒸気使用機器の内部の蒸気圧力が低下しても、逆止弁を配置した場合の圧力損失を発生することがなく、復水を確実に復水回収装置の内部へ流入させることができる。 The condensate recovery device of the present invention has an open / close valve that is closed by the fluid pressure of the high-pressure operating fluid when the inlet of the high-pressure operating fluid is opened. Even if the steam pressure is reduced, no pressure loss occurs when the check valve is arranged, and the condensate can be surely flowed into the condensate recovery apparatus.
本発明の復水回収装置は、高圧操作流体の流体圧力によって閉弁する開閉弁を使用するものであるが、この開閉弁としては従来公知の高圧流体をアクチュエータ源とするピストン弁とかダイヤフラム弁等を用いることができる。 The condensate recovery apparatus of the present invention uses an on-off valve that closes by the fluid pressure of the high-pressure operating fluid. As this on-off valve, a piston valve or a diaphragm valve that uses a conventionally known high-pressure fluid as an actuator source, or the like Can be used.
図1は本実施例の構成図であって、復水回収装置2を、復水の流入口3と還元口4、及び、高圧操作流体の導入口5と循環口6とで構成し、復水流入口3に開閉弁7を介して復水流入管8を接続する。
FIG. 1 is a block diagram of the present embodiment. A condensate recovery device 2 is composed of a condensate inlet 3 and a reducing port 4, and a high-pressure operating fluid inlet 5 and a circulation port 6. A condensate inflow pipe 8 is connected to the water inlet 3 through an on-off
開閉弁7はピストン弁であり、上部のピストン9へ高圧操作流体の導入口5が開口すると管路10を通して高圧操作流体、本実施例においては高圧の圧縮空気、が供給されることによって、自動的に閉弁し、一方、導入口5から高圧操作流体の供給が停止されると自動的に開弁するものである。
The on-off
復水の還元口4に逆止弁11を介して復水圧送管12を接続する。逆止弁11は、復水回収装置2内から復水圧送管12側への復水の流下を許容し、反対方向の流れは阻止する機能を有する。 A condensate pressure feed pipe 12 is connected to the condensate reduction port 4 via a check valve 11. The check valve 11 has a function of allowing the flow of condensate from the condensate recovery device 2 to the condensate pressure feed pipe 12 side and blocking the flow in the opposite direction.
高圧操作流体の導入口5へ高圧の圧縮空気供給管13を接続する。また、高圧操作流体の循環口6は、管路14を介してエアエゼクタ15の吸引部16と接続する。吸引部16に内蔵した図示しないノズルにエア供給管17を接続する。エア供給管17には、第二の開閉弁18を取り付けて、その上部のピストン19に管路20を介して高圧操作流体の導入口5近傍と連通する。開閉弁18は、ピストン19へ高圧操作流体の導入口5が開口すると管路20を通して高圧操作流体が供給されることによって、自動的に閉弁し、一方、導入口5から高圧操作流体の供給が停止されると自動的に開弁するものである。 A high-pressure compressed air supply pipe 13 is connected to the high-pressure operating fluid inlet 5. In addition, the high-pressure operating fluid circulation port 6 is connected to the suction portion 16 of the air ejector 15 via the conduit 14. An air supply pipe 17 is connected to a nozzle (not shown) built in the suction unit 16. A second on-off valve 18 is attached to the air supply pipe 17, and communicates with the piston 19 at the upper part thereof through the pipe line 20 and the vicinity of the high-pressure operating fluid inlet 5. The on-off valve 18 is automatically closed by supplying the high-pressure operating fluid through the pipe line 20 when the high-pressure operating fluid introduction port 5 opens to the piston 19, while the high-pressure operating fluid is supplied from the introduction port 5. The valve opens automatically when is stopped.
復水回収装置2は、内部に配置した図示しないフロートが下方部に位置する場合に、高圧操作流体の導入口5を閉口して開閉弁7,18を開弁し、一方、高圧操作流体の循環口6を開口してエアエゼクタ15の吸引部16と連通して、復水流入管8から復水を復水回収装置2内に流下させる。
The condensate recovery device 2 closes the high-pressure operating fluid introduction port 5 and opens the on-off
復水回収装置2内に復水が溜まって図示しないフロートが所定上方部に位置すると、高圧操作流体の循環口6を閉口し、一方、高圧操作流体の導入口5を開口して開閉弁7,18を閉弁し、高圧の圧縮空気供給管13から圧送用圧縮空気を内部に流入させることにより、内部に溜まった復水を復水の還元口4と逆止弁11と復水圧送管12を通してボイラー等の復水回収先へ圧送する。
When condensate accumulates in the condensate recovery device 2 and a float (not shown) is positioned at a predetermined upper portion, the high-pressure operating fluid circulation port 6 is closed, while the high-pressure operating fluid introduction port 5 is opened to open and close the
復水が圧送されて復水回収装置2内の液位が低下すると、再度、高圧操作流体の導入口5を閉口し、高圧操作流体の循環口6を開口することによって、復水の流入口3から復水を内部へ流下させる。このような作動サイクルを繰り返すことによって復水を所定の回収先へ回収する。 When the condensate is pumped and the liquid level in the condensate recovery device 2 is lowered, the inlet 5 for the high-pressure operating fluid is closed again, and the circulation port 6 for the high-pressure operating fluid is opened again. The condensate flows down from 3. By repeating such an operation cycle, the condensate is recovered to a predetermined recovery destination.
高圧操作流体の導入口5が開口すると、その高圧操作流体の流体圧力によって閉弁する開閉弁7,18を配置したことによって、蒸気使用機器の内部の蒸気圧力が低下しても、従来技術のように逆止弁を配置した場合の圧力損失を発生することがなく、復水を確実に復水回収装置2の内部へ流入させることができる。
When the high-pressure operating fluid inlet 5 is opened, the on-off
本発明は、蒸気使用機器で使用される蒸気の圧力が低い場合であっても、確実に復水を回収することのできる復水回収装置として利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used as a condensate recovery apparatus that can reliably recover condensate even when the pressure of steam used in steam-using equipment is low.
2 復水回収装置
3 復水の流入口
4 復水の還元口
5 高圧操作流体の導入口
6 高圧操作流体の循環口
7 開閉弁
8 復水流入管
12 復水圧送管
13 高圧の圧縮空気供給管
15 エアエゼクタ
18 第二の開閉弁
2 Condensate recovery device 3 Condensate inlet 4 Condensate reduction port 5 High-pressure operating fluid inlet 6 High-pressure operating
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JP2012072733A JP5940338B2 (en) | 2012-03-28 | 2012-03-28 | Condensate recovery device |
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JP2012072733A JP5940338B2 (en) | 2012-03-28 | 2012-03-28 | Condensate recovery device |
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JP2013204876A5 JP2013204876A5 (en) | 2015-04-23 |
JP5940338B2 JP5940338B2 (en) | 2016-06-29 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104613464A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Gas thermal power plant one-dragging-one set condensate system and start and stop method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0449711U (en) * | 1990-08-29 | 1992-04-27 | ||
US5655888A (en) * | 1994-10-14 | 1997-08-12 | Tlv Co., Ltd. | Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve |
JPH1182920A (en) * | 1997-09-05 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Super-heated steam temperature control device in boiler |
JP2008115899A (en) * | 2006-11-01 | 2008-05-22 | Tokyo Electron Ltd | Diaphragm valve and substrate treatment device |
JP2008170126A (en) * | 2007-01-15 | 2008-07-24 | Tlv Co Ltd | Condensate collecting apparatus |
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2012
- 2012-03-28 JP JP2012072733A patent/JP5940338B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0449711U (en) * | 1990-08-29 | 1992-04-27 | ||
US5655888A (en) * | 1994-10-14 | 1997-08-12 | Tlv Co., Ltd. | Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve |
JPH1182920A (en) * | 1997-09-05 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Super-heated steam temperature control device in boiler |
JP2008115899A (en) * | 2006-11-01 | 2008-05-22 | Tokyo Electron Ltd | Diaphragm valve and substrate treatment device |
JP2008170126A (en) * | 2007-01-15 | 2008-07-24 | Tlv Co Ltd | Condensate collecting apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104613464A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Gas thermal power plant one-dragging-one set condensate system and start and stop method thereof |
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