JP6006980B2

JP6006980B2 - Condensate recovery device

Info

Publication number: JP6006980B2
Application number: JP2012119411A
Authority: JP
Inventors: 正義原田
Original assignee: Tlv Co Ltd
Current assignee: Tlv Co Ltd
Priority date: 2012-05-25
Filing date: 2012-05-25
Publication date: 2016-10-12
Anticipated expiration: 2032-05-25
Also published as: JP2013245866A

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、通常、復水集合タンクに大気連通管を接続して、復水集合タンク内で復水が再蒸発した再蒸発蒸気を、この大気連通管から大気中へ排出しているために、蒸気損失すなわち熱損失が発生してしまう問題があった。 In this condensate recovery unit, an air communication pipe is usually connected to the condensate collection tank, and re-evaporated vapor obtained by re-evaporating the condensate in the condensate collection tank is discharged into the atmosphere from the air communication pipe. Therefore, there is a problem that steam loss, that is, heat loss occurs.

特開２００８−１７０１２６号公報JP 2008-170126 A

解決しようとする課題は、復水集合タンクから大気中への蒸気損失すなわち熱損失を少なくす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 to provide a condensate recovery device that can reduce steam loss from the condensate collecting tank to the atmosphere, that is, heat loss.

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―ト手段の変位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、復水の流入口を熱交換式復水集合タンクと接続して、当該熱交換式復水集合タンクに熱交換用の冷却水供給管を接続して、当該冷却水供給管に温度応動弁を取り付け、上記熱交換式復水集合タンクに大気連通管を接続して、当該大気連通管に上記温度応動弁の温度検出部材を取り付けたものである。 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. The condensate inlet is connected to a heat exchange type condensate assembly in which the condensate is pumped and recovered by opening and closing the inlet and circulation port of the high-pressure operating fluid according to the displacement of the float means. Connected to a tank, a heat exchange cooling water supply pipe is connected to the heat exchange type condensate collection tank, a temperature responsive valve is attached to the cooling water supply pipe, and the heat exchange type condensate collection tank is connected to the atmosphere. A communication pipe is connected, and the temperature detection member of the temperature responsive valve is attached to the atmospheric communication pipe.

本発明の復水回収装置は、熱交換式復水集合タンクに熱交換用の冷却水供給管を接続して、この冷却水供給管に温度応動弁を取り付け、熱交換式復水集合タンクに大気連通管を接続して、この大気連通管に温度応動弁の温度検出部材を取り付けて、大気連通管内の再蒸発蒸気の温度が高い場合に、温度応動弁から大量の冷却水を冷却水供給管へ供給することによって、再蒸発蒸気の熱を奪って凝縮させることで、再蒸発蒸気の量を減少させ、熱交換式復水集合タンクから大気中への蒸気損失すなわち熱損失を少なくすることができる。 The condensate recovery apparatus of the present invention connects a cooling water supply pipe for heat exchange to a heat exchange type condensate collecting tank, and attaches a temperature responsive valve to the cooling water supply pipe, Connect an air communication pipe, attach a temperature sensing valve temperature detection member to this air communication pipe, and supply a large amount of cooling water from the temperature reaction valve when the temperature of reevaporated steam in the air communication pipe is high By supplying heat to the pipe, the heat of the re-evaporated steam is deprived and condensed, thereby reducing the amount of re-evaporated steam and reducing the steam loss from the heat exchange type condensate collecting tank to the atmosphere, that is, heat loss. Can do.

本発明の復水回収装置の実施例を示す構成図。The block diagram which shows the Example of the condensate collection | recovery apparatus of this invention.

本発明の復水回収装置の熱交換式復水集合タンクは、タンク内へ流入する復水と再蒸発蒸気の混合流体と、コイル状の冷却水パイプとが間接的に熱交換するものを用いることができる。 The heat exchange type condensate collecting tank of the condensate recovery apparatus of the present invention uses a heat exchange indirectly conducted by a mixed fluid of condensate and re-evaporated steam flowing into the tank and a coiled cooling water pipe. be able to.

図１において、復水溜容器５と、熱交換式復水集合タンク１と、熱交換式復水集合タンク１内に配置した大気連通管６とで復水回収装置を構成する。 In FIG. 1, a condensate collecting device is constituted by a condensate reservoir 5, a heat exchange type condensate collecting tank 1, and an atmosphere communication pipe 6 disposed in the heat exchange type condensate collecting tank 1.

熱交換式復水集合タンク１内の中心部に円筒パイプ状で上下端開放状態の大気連通管６を設ける。大気連通管６の外周に、銅製長尺パイプをコイル状に形成した冷却流体管３を配置し、この冷却流体管３の下端に冷却水供給管７を接続すると共に、上端を温水排出管８と接続する。冷却水供給管７から供給される冷却水が、冷却流体管３を通って排出管８へと至るものである。冷却水供給管７に温度応動弁１３を取り付ける。また、大気連通管６の上端部に温度検出部材としての感温筒１２を取り付ける。感温筒１２と温度応動弁１３は図示しないキャピラリーチューブで接続することで、感温筒１２での検出温度を、温度応動弁１３へ伝達して、温度応動弁１３を開閉弁することができるものである。 At the center of the heat exchange type condensate collecting tank 1, an atmosphere communication pipe 6 is provided in the shape of a cylindrical pipe and is open at the upper and lower ends. A cooling fluid pipe 3 in which a copper long pipe is formed in a coil shape is disposed on the outer periphery of the atmosphere communication pipe 6. A cooling water supply pipe 7 is connected to the lower end of the cooling fluid pipe 3, and the upper end is a hot water discharge pipe 8. Connect with. The cooling water supplied from the cooling water supply pipe 7 reaches the discharge pipe 8 through the cooling fluid pipe 3. A temperature responsive valve 13 is attached to the cooling water supply pipe 7. Further, a temperature sensing cylinder 12 as a temperature detection member is attached to the upper end portion of the atmosphere communication pipe 6. By connecting the temperature sensing cylinder 12 and the temperature responsive valve 13 with a capillary tube (not shown), the temperature detected by the temperature sensing cylinder 12 can be transmitted to the temperature responsive valve 13 to open and close the temperature responsive valve 13. Is.

大気連通管６の内部下方に、上端開放状態のオーバーフロー管９を配置する。オーバーフロー管９の上端１１を大気連通管６の底部より所定距離だけ高い位置に開口する。 An overflow pipe 9 in an open state at the upper end is disposed below the atmosphere communication pipe 6. The upper end 11 of the overflow pipe 9 is opened at a position higher than the bottom of the atmosphere communication pipe 6 by a predetermined distance.

熱交換式復水集合タンク１の上部に復水流入管２を接続する。復水流入管２の左端部は、図示しない蒸気使用機器の出口側と接続して、この蒸気使用機器で発生した復水が、復水流入管２から熱交換式復水集合タンク１へ流入するものである。 A condensate inflow pipe 2 is connected to the upper part of the heat exchange type condensate collecting tank 1. The left end of the condensate inflow pipe 2 is connected to the outlet side of the steam using equipment (not shown), and the condensate generated by the steam using equipment flows into the heat exchange type condensate collecting tank 1 from the condensate inflow pipe 2 It is.

熱交換式復水集合タンク１の復水溜部１０の復水は、大気連通管６内を上昇して、オーバーフロー管９の上端１１から下方に設置した復水溜容器５へと流下する。 Condensate in the condensate reservoir 10 of the heat exchange condensate collecting tank 1 rises in the atmosphere communication pipe 6 and flows down from the upper end 11 of the overflow pipe 9 to the condensate reservoir 5 installed below.

復水溜容器５は、復水の流入口２５と還元口２６、及び、高圧操作流体の導入口２７と循環口２８を有し、復水の流入口２５を通路３５によってオーバーフロー管９の下部と接続する。通路３５には、一方方向の流体の通過のみを許容する逆止弁２９を取り付ける。この逆止弁２９は、オーバーフロー管９から復水溜容器５への流体の通過を許容し、反対方向の通過は阻止するものである。 The condensate reservoir 5 has a condensate inlet 25 and a reducing port 26, and a high-pressure operating fluid inlet 27 and a circulation port 28. The condensate inlet 25 is connected to the lower part of the overflow pipe 9 by a passage 35. Connecting. A check valve 29 that allows only passage of fluid in one direction is attached to the passage 35. This check valve 29 allows passage of fluid from the overflow pipe 9 to the condensate reservoir 5 and prevents passage in the opposite direction.

復水溜容器５の還元口２６にも逆止弁３０を介して復水回収管３１を接続すると共に、高圧操作流体の導入口２７には高圧蒸気管３２を接続する。一方、高圧操作流体の循環口２８は均圧管３３によって熱交換式復水集合タンク１の側部と連通する。 A condensate recovery pipe 31 is connected to the reduction port 26 of the condensate reservoir 5 via a check valve 30, and a high-pressure steam pipe 32 is connected to the high-pressure operating fluid inlet 27. On the other hand, the high-pressure operating fluid circulation port 28 communicates with a side portion of the heat exchange type condensate collecting tank 1 through a pressure equalizing pipe 33.

復水溜容器５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２７を閉口し、一方、高圧操作流体の循環口２８を開口して、熱交換式復水集合タンク１の下部に溜まった復水を逆止弁２９と流入口２５を通して復水溜容器５内に流下させる。そして、復水溜容器５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、高圧操作流体の排出口２８を閉口し、一方、高圧操作流体の導入口２７を開口して、高圧蒸気管３２から高圧圧送用蒸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還元口２６と逆止弁３０と復水回収管３１を通して復水回収先へ圧送する。 The condensate reservoir 5 closes the high-pressure operating fluid inlet 27 and opens the high-pressure operating fluid circulation port 28 when a float (not shown) disposed therein is located in the lower part, and is a heat exchange type. Condensate collected in the lower part of the condensate collecting tank 1 is caused to flow down into the condensate reservoir 5 through the check valve 29 and the inlet 25. When condensate accumulates in the condensate reservoir 5 and a float (not shown) is positioned at a predetermined upper portion, the high-pressure operating fluid discharge port 28 is closed, while the high-pressure operating fluid inlet 27 is opened, The steam for high-pressure pressure feeding into the inside from the steam pipe 32 feeds the condensate accumulated inside to the condensate collection destination through the reduction port 26, the check valve 30 and the condensate collection pipe 31.

復水が高圧蒸気で圧送されて液体溜容器５内の液位が低下すると、再度、高圧操作流体の導入口２７を閉口し、循環口２８を開口することにより、流入口２５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り、復水溜容器５は熱交換式復水集合タンク１からの復水を復水回収先へ圧送する。 When the condensate is pumped with high-pressure steam and the liquid level in the liquid reservoir 5 decreases, the high-pressure operating fluid inlet 27 is closed again and the circulation port 28 is opened, so that the condensate is discharged from the inlet 25. Flow down to the inside. By repeating such an operation cycle, the condensate reservoir 5 pumps the condensate from the heat exchange type condensate collecting tank 1 to the condensate collection destination.

熱交換式復水集合タンク１の大気連通管６内の検出温度値が所定値よりも高くなると感温筒１２が検知して温度応動弁１３を開弁して、冷却水供給管７から冷却流体管３へ多量の冷却水を供給することで、熱交換式復水集合タンク１内の再蒸発蒸気を減少させて、大気連通管６内へ上昇してくる再蒸発蒸気が大気中へ放出されることを防止して、蒸気損失すなわち熱損失を少なくすることができる。 When the detected temperature value in the atmosphere communication pipe 6 of the heat exchange type condensate collecting tank 1 becomes higher than a predetermined value, the temperature sensing cylinder 12 detects it, opens the temperature responsive valve 13, and cools from the cooling water supply pipe 7. By supplying a large amount of cooling water to the fluid pipe 3, the re-evaporated steam in the heat exchange type condensate collecting tank 1 is reduced, and the re-evaporated steam rising into the atmosphere communication pipe 6 is released into the atmosphere. It is possible to prevent steam loss, that is, heat loss.

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 device 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.

１熱交換式復水集合タンク
２復水流入管
３冷却流体管
５復水溜容器
６大気連通管
７冷却水供給管
９オーバーフロー管
１２感温筒
１３温度応動弁
２５流入口
２６還元口
２７導入口
２８循環口 DESCRIPTION OF SYMBOLS 1 Heat exchange type condensate collecting tank 2 Condensate inflow pipe 3 Cooling fluid pipe 5 Condensate reservoir 6 Atmospheric communication pipe 7 Cooling water supply pipe 9 Overflow pipe 12 Temperature sensing cylinder 13 Temperature responsive valve 25 Inlet 26 Reduction port 27 Inlet 28 Circulation port

Claims

復水の流入口と還元口を設けた復水溜容器に、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、前記フロ―ト手段の変位に応じて前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復水回収装置であって、
前記復水の流入口及び前記高圧操作流体の循環口を熱交換式復水集合タンクと接続し、
前記熱交換式復水集合タンクに熱交換用の冷却水供給管を接続し、
前記冷却水供給管に温度応動弁を取り付け、
前記熱交換式復水集合タンクに大気連通管を接続し、
前記大気連通管に前記温度応動弁を開閉する温度検出部材を取り付け、
前記温度応動弁は、前記温度検出部材が前記大気連通管内の検出温度値が所定値よりも高いことを検知すると開弁して、前記冷却水供給管から冷却水を供給させ、
前記フロート手段が下方部に位置する場合、前記導入口を閉口して前記循環口を開口することにより、前記熱交換式復水集合タンクの下部に溜まった復水を復水溜容器に流下させる、復水回収装置。
A condensate reservoir provided with a condensate inlet and a reducing port is provided with an inlet and a circulation port for high-pressure operation fluid, and a float means that rises and falls with the water level is disposed. A condensate recovery device that opens and closes the introduction port and the circulation port of the high-pressure operating fluid according to displacement and pumps and recovers condensate,
Connecting the inlet of the condensate and the circulation port of the high-pressure working fluid to a heat exchange condensate collecting tank;
Connecting a cooling water supply pipe for heat exchange to the heat exchange type condensate collecting tank,
A temperature responsive valve is attached to the cooling water supply pipe,
Connect an air communication pipe to the heat exchange type condensate collecting tank,
A temperature detection member for opening and closing the temperature responsive valve is attached to the atmosphere communication pipe,
The temperature responsive valve is detected temperature value of the temperature detection member said atmosphere communicating tube is opened and you detect high Ikoto than a predetermined value, to supply the cooling water from the cooling water supply pipe,
If the float means is located in the lower part, by opening the circulation port and closing said inlet, Ru passed down the condensate accumulated in the lower portion of the heat exchange type condensate collection tank to the condensate water reservoir container , Condensate recovery equipment.